Technical Committee on Tank Storage and Piping Systems · NFPA 30 Technical Committees on Flammable...

NFPA 30 Technical Committees on Flammable and

Combustible Liquids

First Draft Meeting Agenda (A2020)

Technical Committee on Tank Storage and Piping Systems

Friday, August 3rd - 7:00 am (early start) to 4:00 pm (Eastern)

In Person with Web/Teleconference Option

The Brice Hotel

601 East Bay Street

Savannah, GA 31401

To Join the Meeting: https://nfpa.adobeconnect.com/sbershad/

US Toll Free Telephone Number: 1-855-747-8824

Participant Code: 478836

1.0 Call to Order

2.0 Introduction of Attendees and Roll Call, see page 2

3.0 Approval of Minutes from Second Draft Meeting, see page 6

4.0 Report of Committee Chair

5.0 Report of Staff Liaison

Technical Committee Membership

Annual 2020 Document Revision Schedule, see page 10

6.0 Report of Task Groups

Piping Systems

Tank Spacing Tables Task Group

7.0 Review of Public Inputs, see page 11 (note attachment pages are not numbered)

8.0 Review of exception language in document, see page 48 (242 in this pdf) 9.0 New business

10.0 Schedule Next Meeting

11.0 Adjourn

NFPA 30 FLC-TAN FIRST DRAFT AGENDA of 52

https://nfpa.adobeconnect.com/sbershad/

Address List No PhoneTank Storage and Piping Systems FLC-TAN

Flammable and Combustible Liquids

Susan Bershad07/09/2018

FLC-TAN

Stephen W. Haines

ChairHaines Fire & Risk Consulting Corp.1 Linda Lane, Suite BSouthampton, NJ 08088Alternate: Anthony M. Ordile

SE 08/09/2012FLC-TAN

Steven P. Allwein

PrincipalMorrison Brothers Company255 Hemingway LaneSeverna Park, MD 21146-2142

M 7/16/2003

FLC-TAN

John H. Bagnall

PrincipalBurns & McDonnell Engineering Company9400 Ward ParkwayPO Box 419173Kansas City, MO 64141-6173Alternate: Charles Lovell Bogert

SE 1/15/2004FLC-TAN

Tim D. Blackford

PrincipalChevron Energy Technology Company1400 Smith Street, Room 20044Houston, TX 77002American Petroleum InstituteAlternate: Richard S. Kraus

U 3/1/2011

FLC-TAN

John V. Cignatta

PrincipalDatanet Engineering, Inc.11416 Reisterstown RoadOwings Mills, MD 21117

SE 8/2/2010FLC-TAN

Anthony R. Cole

PrincipalJENSEN HUGHES226 Stable WayNicholasville, KY 40356-8046Alternate: Alwin A Kelly

SE 12/06/2017

FLC-TAN

Charles A. Davis

PrincipalAECOM/URS Corporation7650 West Courtney Campbell CausewayTampa, FL 33607-1462Alternate: Michael D. Butler

SE 10/1/1996FLC-TAN

Claire V. De Taeye

PrincipalTravelers Insurance Company75 Town Centre DriveRochester, NY 14623Alternate: Timothy S. Murphy

I 3/1/2011

FLC-TAN

Mark Fasel

PrincipalViega LLC7338 Jackie CourtIndianapolis, IN 46221

M 08/03/2016FLC-TAN

Wayne B. Geyer

PrincipalSteel Tank Institute944 Donata CourtLake Zurich, IL 60047-5025Alternate: Jeffrey M. Shapiro

M 1/1/1986

FLC-TAN

Dwight H. Havens

PrincipalBechtel Marine Propulsion CorporationNaval Nuclear Laboratory - Kesselring20 Bellflower RoadMalta, NY 12020-4431

U 7/24/1997FLC-TAN

Gregory D. Kirby

PrincipalCytec Solvay Group1 Heilman AvenueWillow Island, WV 26134

U 1/17/1997

FLC-TAN

Thomas S. Lentz

PrincipalAon Risk Services, Inc.8940 Benoy CourtLakewood, IL 60014-6809

I 3/2/2010FLC-TAN

Philip Myers

PrincipalPemy Consulting LLC837 Sage DriveMartinez, CA 94523

SE 04/08/2015

1NFPA 30 FLC-TAN FIRST DRAFT AGENDA of 52




FLC-TAN

David P. Nugent

PrincipalTUV SUD America Inc./Global Risk Consultants2037 Clover RoadNorthbrook, IL 60062-6422


Duane L. Rehmeyer

PrincipalBaker Engineering & Risk Consultants, Inc.709 Highspire RoadGlenmore, PA 19343Alternate: David C. Kirby

SE 8/2/2010

FLC-TAN

Robert N. Renkes

PrincipalFiberglass Tank & Pipe Institute8252 S. Harvard Avenue, Suite 102Tulsa, OK 74137

M 12/06/2017FLC-TAN

John W. Richmond, Sr.

PrincipalEastman Chemical CompanyPO Box 511 (B-54)Kingsport, TN 37662

U 4/14/2005

FLC-TAN

Roland A. Riegel

PrincipalUL LLC1285 Walt Whitman RoadMelville, NY 11747-3085Alternate: Alfredo M. Ramirez

RT 4/15/2004FLC-TAN

James R. Rocco

PrincipalSage Risk Solutions, LLC360 Heritage RoadAurora, OH 44202Petroleum Marketers Association of AmericaAlternate: Charles R. Plummer

U 3/21/2006

FLC-TAN

Clark D. Shepard

PrincipalExxonMobil CorporationResearch & EngineeringScience 2 - Room 2A.33822777 Springwood Village ParkwaySpring, TX 77389

U 1/12/2000FLC-TAN

David B. Wechsler

PrincipalConsultant27706 Dalton Bluff CourtKaty, TX 77494-2729American Chemistry Council

U 10/27/2009

FLC-TAN

Peter J. Willse

PrincipalGlobal Asset Protection Services, LLC100 Constitution Plaza, 12th FloorHartford, CT 06103Alternate: Luis F. Arango

I 3/21/2006FLC-TAN

John P. Woycheese

PrincipalSaudi AramcoEngineer I712 Nasiriyah StreetP.O. Box 13933Eastern Province, Dhahran, 31311 Saudi Arabia

U 08/11/2014

FLC-TAN

Robert H. Young

PrincipalPetroleum Equipment InstituteP.O. Box 2380Tulsa, OK 74101-2380

M 12/08/2015FLC-TAN

R. Jeff Tanner

Voting AlternateMichigan Department of Environmental QualityPO Box 30426Lansing, MI 48909-7926

E 10/29/2012

FLC-TAN

Luis F. Arango

AlternateGlobal Asset Protection Services, LLC21707 Shallow Glen LaneKaty, TX 77450-5489Principal: Peter J. Willse

I 7/16/2003FLC-TAN

Charles Lovell Bogert

AlternateBurns & McDonnell9400 Ward ParkwayKansas City, MO 64114Principal: John H. Bagnall

SE 08/17/2017





FLC-TAN

Michael D. Butler

AlternateAECOM/URS Corporation7650 West Courtney Campbell CausewayTampa, FL 33607-1462Principal: Charles A. Davis


Alwin A Kelly

AlternateJENSEN HUGHES3610 Commerce Drive, Suite 817Baltimore, MD 21227Principal: Anthony R. Cole

SE 08/11/2014

FLC-TAN

David C. Kirby

AlternateBaker Engineering & Risk Consultants, Inc.1560 Clearview HeightsCharleston, WV 25312-5948Principal: Duane L. Rehmeyer

SE 1/1/1991FLC-TAN

Richard S. Kraus

AlternateAPI/Petroleum Safety Consultants210 East Fairfax Street, Apt. 600Falls Church, VA 22046-2909American Petroleum InstitutePrincipal: Tim D. Blackford

U 4/5/2001

FLC-TAN

Timothy S. Murphy

AlternateTravelers Insurance Company1000 Windward ConcourseAlpharetta, GA 30005-2052Principal: Claire V. De Taeye

I 03/03/2014FLC-TAN

Anthony M. Ordile

AlternateHaines Fire & Risk Consulting Corporation1 Linda Lane, Suite BSouthampton, NJ 08088Principal: Stephen W. Haines

SE 10/1/1993

FLC-TAN

Charles R. Plummer

AlternatePPM Consultants, Inc.1600 Lamy LaneMonroe, LA 71201-3736Petroleum Marketers Association of AmericaPrincipal: James R. Rocco

U 4/14/2005FLC-TAN

Alfredo M. Ramirez

AlternateUL LLC333 Pfingsten RoadNorthbrook, IL 60062-2096Principal: Roland A. Riegel

RT 4/15/2004

FLC-TAN

Jeffrey M. Shapiro

AlternateInternational Code Consultants8207 Asmara DriveAustin, TX 78750Steel Tank Institute/Steel Plate Fabricators AssociationPrincipal: Wayne B. Geyer

M 10/10/1997FLC-TAN

Jeffrey J. Wanko

Nonvoting MemberUS Department of LaborOccupational Safety & Health Administration200 Constitution Ave. NW, Room N3119Washington, DC 20210

E 03/05/2012

FLC-TAN

David L. Blomquist

Member Emeritus114 Golden Ridge RoadAlamo, CA 94507-2869

10/1/1993FLC-TAN

Orville M. Slye, Jr.

Member EmeritusLoss Control Associates, Inc.1382 Newtown-Yardley RoadApartment C101Newtown, PA 18940

1/1/1988

FLC-TAN

Brooke B. Smith, Jr.

Member Emeritus1324 Longs PointWoodland Park, CO 80863-5306

SE 1/1/1982FLC-TAN

Jack Woycheese

Member Emeritus1649 Constable StreetPrescott, AZ 86301

SE 1/1/1996





FLC-TAN

Susan Bershad

Staff LiaisonNational Fire Protection AssociationOne Batterymarch ParkQuincy, MA 02169-7471

4/17/2017


NFPA 30 Technical Committees on Flammable and Combustible Liquids

TECHNICAL COMMITTEE ON Tank Storage and Piping Systems (FLC‐TAN)

Pre‐First Draft Meeting Wednesday, March 14, 2018 – 8:00 am to 12:00 pm (EST)

Web Meeting/Teleconference

Attendees

CommitteeMembers(FLC‐TAN):

FullName Company OfficeStephenW.Haines HainesFire&RiskConsultingCorp. ChairStevenP.Allwein MorrisonBrothersCompany PrincipalTimD.Blackford ChevronEnergyTechnologyCompany PrincipalJohnCignatta DatanetEngineering,Inc. PrincipalAnthonyR.Cole JENSENHUGHES PrincipalClaireV.DeTaeye TravelersInsuranceCompany PrincipalMarkFasel ViegaLLC PrincipalDwightH.Havens BechtelMarinePropulsionCorporation PrincipalThomasS.Lentz AonRiskServices,Inc. PrincipalDavidP.Nugent TUVSUDAmericaInc./GlobalRisk

ConsultantsPrincipal

DuaneL.Rehmeyer BakerEngineering&RiskConsultants,Inc.

Principal

RobertN.Renkes FiberglassTank&PipeInstitute PrincipalJohnW.Richmond,Sr. EastmanChemicalCompany PrincipalRolandA.Riegel ULLLC PrincipalJamesR.Rocco SageRiskSolutions,LLC PrincipalPeterJ.Willse GlobalAssetProtectionServices,LLC PrincipalJohnP.Woycheese SaudiAramco PrincipalRobertH.Young PetroleumEquipmentInstitute PrincipalCharlesLovellBogert Burns&McDonnell AlternateAlwinAKelly JENSENHUGHES AlternateDavidC.Kirby BakerEngineering&RiskConsultants,

Inc.Alternate

RichardS.Kraus API/PetroleumSafetyConsultants AlternateR. JeffTanner MichiganDepartmentof

EnvironmentalQualityAlternate

JeffreyJ.Wanko USDepartmentofLabor Non‐votingMember


Susan Bershad, Primary Staff Liaison National Fire Protection Association, MA Lisa Hartman, Acting Staff Liaison National Fire Protection Association, MA

Guests: Scott Ayers CPSC Ruby Evans FM Global John LeBlanc FM Global Ted Lemoff On behalf of Omega Flex Dean Rivest Omega Flex Evan Juscoca ?

Agenda 1. Call to Order. Stephen Haines, Chair, called the meeting to order at 8:00 A.M.

2. Introductions. Lisa Hartman, Staff Liaison, took attendance. It was noted that Marcia JoPoxson of the Michigan Bureau of Fire Service has retired.

3. Approval of Minutes. The Second Draft Meeting minutes from Thursday, June 23, 2016,were approved.

4. Report of Committee Chair. Nothing new to report.

5. Staff Updates. L. Hartman provided a brief overview of the NFPA process and the Annual2020 revision cycle schedule.

6. New Business

Refrigerated and pressurized liquid gas tanksNotes: May be a gap between NFPA standards (e.g. large‐scale storage of liquid ethanefrom shale)Action: NFPA to research correct placement in Code (e.g. NFPA 55, NFPA 58)

Use of poly tanks in upstream operations (e.g. Roff double‐walled tanks…polyinner/metal outer)Action: Technical committee member to submit PISpecific action items:

Provide copy of UL/SU2258 to technical committee pending UL approval (NFPA)

Use of poly tanks in chemical injection in upstream field operationsAction: Technical committee member to submit PI

Confirmed Task Groups

Please note to be included in the task group, please contact the task group chair and copy Susan Bershad, NFPA staff liaison ([email protected]).


A) Piping Systems Task GroupScope: Address UST requirements, Piping Systems, low melting point materials etc.

1) Underground storage tank (UST) requirementsScope: Review NFPA 30 versus EPA regulations

2) Reference piping system standards for tanksScope: Consider the following items:• Add reference to UL 142A for Special Purpose Steel Tanks in 21.4.2.1.1 Design

Standards for Atmospheric Tanks and Chapter 27.• Re‐establish UL971A Metallic Underground Piping• Add UL/ULC 1369, Metallic Aboveground PipingSpecific action items:

Provide copy of UL 142A, UL 971A and UL 1369 to technical committee pendingUL approval (NFPA)

3) Piping Systems.Scope: Review and develop material as required for the following piping systemsections:

27.4 Materials of Construction with focus on27.4.4 Low Melting Point Materials27.4.6 Nonmetallic Piping

27.6 Installation of Piping Systems with focus on27.6.5 Installation of Underground Piping27.6.X Installation of Aboveground Piping

27.11 Special Requirements for Marine Piping Systems

Task Group Chair: Jim Rocco ([email protected])

Task Group Members: Mark Fasel, Ted Lemoff, Dean Rivest, Steve Allwein, BobRenkes, Bob Young, Roland Riegel, John Woycheese (or representative)


B) Tank Spacing Tables Task GroupScope: Review basis of distances…possible changes based on more recent data and firemodeling. Consider code relief on external sprinkler to relieve distances.Note: Per D. Kraus, the tables are based on American Insurance Institute (AII) work forAPI that was done in 1949 at old Paulsboro NJ facility.

Task Group Chair: Tony Cole ([email protected])

Task Group Members: Stephen Haines, John Woycheese (or representative)

C) FLC‐FUN Task group on NFPA 30 flammable liquid classification system (e.g. base onflash point)

Task Group Chair: David Nugent ([email protected])

Task Group Members on behalf of FLC‐TAN: None assigned‐ TBD

7. Next Meeting. The NFPA 30 First Draft meeting is tentatively scheduled for July 31‐ August2, 2018, in Milwaukee, WI. The agenda is TDB.

8. Adjournment. The meeting adjourned at 10:30 AM.


Annual 2020 Master Schedule

Process Stage Process Step Dates for TCDates for TC

with CC

Public Input Stage (First Draft)

Public Input Closing Date* 6/27/2018 6/27/2018

Final Date for TC First Draft Meeting 12/05/2018 9/05/2018

Posting of First Draft and TC Ballot 1/23/2019 10/17/2018

Final date for Receipt of TC First Draft ballot 2/13/2019 11/07/2018

Final date for Receipt of TC First Draft ballot ‐ recirc 2/20/2019 11/14/2018

Posting of First Draft for CC Meeting 11/21/2018

Final date for CC First Draft Meeting 1/02/2019

Posting of First Draft and CC Ballot 1/23/2019

Final date for Receipt of CC First Draft ballot 2/13/2019

Final date for Receipt of CC First Draft ballot ‐ recirc 2/20/2019

Post First Draft Report for Public Comment 2/27/2019 2/27/2019

Comment Stage (Second Draft)

Public Comment Closing Date* 5/08/2019 5/08/2019

Notice Published on Consent Standards (Standards that received no Comments)Note: Date varies and determined via TC ballot.

Appeal Closing Date for Consent Standards (Standards that received no Comments)

Final date for TC Second Draft Meeting 11/06/2019 7/31/2019

Posting of Second Draft and TC Ballot 12/18/2019 9/11/2019

Final date for Receipt of TC Second Draft ballot 1/08/2020 10/02/2019

Final date for receipt of TC Second Draft ballot ‐ recirc 1/15/2020 10/09/2019

Posting of Second Draft for CC Meeting 10/16/2019

Final date for CC Second Draft Meeting 11/27/2019

Posting of Second Draft for CC Ballot 12/18/2019

Final date for Receipt of CC Second Draft ballot 1/08/2020

Final date for Receipt of CC Second Draft ballot ‐ recirc 1/15/2020

Post Second Draft Report for NITMAM Review 1/22/2020 1/22/2020

Tech Session Preparation (&

Issuance)

Notice of Intent to Make a Motion (NITMAM) Closing Date 2/19/2020 2/19/2020

Posting of Certified Amending Motions (CAMs) and Consent Standards 4/01/2020 4/01/2020

Appeal Closing Date for Consent Standards 4/16/2020 4/16/2020

SC Issuance Date for Consent Standards 4/26/2020 4/26/2020

Tech Session Association Meeting for Standards with CAMs 6/17/2020 6/17/2020

Appeals and Issuance

Appeal Closing Date for Standards with CAMs 7/08/2020 7/08/2020

SC Issuance Date for Standards with CAMs 8/14/2020 8/14/2020

TC = Technical Committee or PanelCC = Correlating Committee

As of 2/3/2017

Page 1 of 2

7/9/2018https://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of-codes-and-standar...


Public Input No. 101-NFPA 30-2018 [ Section No. 21.4.1.5 ]

21.4.1.5

Tanks shall be permitted to be constructed of combustible materials when approved. Tanks constructed of combustible materials shall be limitedto any of the following:

(1) Underground installation

(2) Use where required by the properties of the liquid stored

(3) Aboveground storage of Class IIIB liquids in areas not exposed to a spill or leak of Class I or Class II liquid

(4) Storage of Class IIIB liquids inside a building protected by an approved automatic fire-extinguishing system

21.4.1.5.1 An engineering evaluation shall be made if a tank constructed of combustible materials will store liquids at a temperature above140⁰F continuous, or will use electric immersion heaters at any temperature.

21.4.1.5.2 Tanks constructed of combustible materials shall be spaced at least 3 ft (0.9 m) away from any surface heated to a temperatureabove 140⁰F (60⁰C) and at least 6 ft (1.8 m) away from any open flame.

Additional Proposed Changes

File Name Description Approved

Code_Requirements_Analysis_for_Roth_DWT_Nonmetallic_Tank_-_6-27-18.pdf

Code Requirements Analysis for a tank designed to UL 2258

Statement of Problem and Substantiation for Public Input

This proposed additional language does not alter the requirement for approval to use combustible tank materials, instead it provides additional requirement to guide authorities and designers in how to safely implement tanks constructed of combustible materials.

While tank storage involving liquids heated above their flash points is required to undergo a hazards analysis in accordance with §6.4, the limited operating temperature of commonly-used combustible tank materials such as polyethylene must also be considered. Where combustible tank materials with operating temperature limits greater than 140⁰F are used, such as polypropylene or FRP, this evaluation will be a relatively straightforward exercise that can be integrated into the approval process for using a tank constructed of combustible materials.

The use of electric immersion heaters should be considered in a similar manner due to the potential for these devices to become ignition sources or otherwise cause a breach of the primary tank.

The proposed requirements for separation from high-temperature surfaces and open flames have a similar objective as above, to limit unintended heating of tanks constructed of combustible materials.

Refer to attached Code Requirements Analysis document for further discussion.

Related Public Inputs for This Document

Related Input Relationship

Public Input No. 100-NFPA 30-2018[Section No. 21.4.2.1.1]

PI 101 includes additional requirements relevant to tanks listed under the standard proposed for inclusionby PI 100, as well as other tanks constructed of combustible materials

Submitter Information Verification

Submitter Full Name: Gregory Maines

Organization: Jensen Hughes

Affiliation: Roth USA, Inc.

Street Address:

City:

State:

Zip:

Submittal Date: Wed Jun 27 11:39:00 EDT 2018

Committee: FLC-TAN

National Fire Protection Association Report https://submittals.nfpa.org/TerraViewWeb/ContentFetcher?commentPar...

1 of 37 7/11/2018, 9:34 AM


3610 Commerce Drive | Suite 817 Baltimore, MD 21227 USA jensenhughes.com +1 410-737-8677 Fax: +1 410-737-8688

Code Requirements Analysis – Storage of Combustible Liquids in Roth DWT Nonmetallic Tank

Prepared For

Roth USA Inc. One General Motors Drive Syracuse, NY 13206 Prepared by:

Gregory S. Maines Alwin A. Kelly

June 27, 2018

Project #: 1AAK00055.000.001

ROTH USA CODE ANALYSIS – 1AAK00055.000.001 PAGE ii

JENSEN HUGHES

TABLE OF CONTENTS

1. EXECUTIVE SUMMARY ................................................................................................................. 1

2. INTRODUCTION .............................................................................................................................. 2

3. CODES AND STANDARDS ............................................................................................................ 3

3.1. NFPA 1 – Fire Code, 2018 Edition ................................................................................... 3

3.2. International Fire Code (IFC), 2018 Edition .................................................................... 3

3.3. NFPA 30 – Flammable and Combustible Liquids Code, 2018 Edition ......................... 3

3.4. NFPA 30A – Code of Motor Fuel Dispensing Facilities and Repair Garages, 2018 Edition ....................................................................................................................... 4

3.5. UL 2258 –Standard for Aboveground Nonmetallic Tanks for Fuel Oil and Other Combustible Liquids, 1st Edition (2018). .............................................................. 4

4. DESIGN AND CONSTRUCTION REQUIREMENTS OF CODES AND STANDARDS .................. 4

4.1. Tank Construction Standards and Material Requirements .......................................... 4

4.1.1. General Requirements for Tanks ........................................................................... 4

4.1.2. Comparison to Requirements for Intermediate Bulk Containers (IBCs) ................ 5

4.2. Requirements for Venting in Normal Operation and for Emergency Relief................ 6

4.2.1. Normal Venting ...................................................................................................... 6

4.2.2. Emergency Venting ................................................................................................ 6

4.3. Spill Containment .............................................................................................................. 8

4.4. Other Requirements ....................................................................................................... 10

4.4.1. Fire Protection ...................................................................................................... 10

4.4.2. Tank Spacing ....................................................................................................... 10

4.4.3. Storage Tank Buildings ........................................................................................ 11

4.4.4. Fire and Explosion Prevention and Risk Control ................................................. 12

4.4.5. Installation, Inspection, and Maintenance ............................................................ 12

5. Fire Tests on Roth DWT .............................................................................................................. 13

5.1. Wood Crib Fire Test ........................................................................................................ 13

ROTH USA CODE ANALYSIS – 1AAK00055.000.001 PAGE iii

JENSEN HUGHES

5.2. Pool Fire Test .................................................................................................................. 15

6. CONCLUSIONS ............................................................................................................................. 16

APPENDIX A: MULTITHERM IG-1 (WHITE MINERAL OIL) DATASHEET............................. A-1

APPENDIX B: FUEL OIL 1-D DATASHEET ............................................................................. B-1

APPENDIX C: ROTH DWT INSTALLATION MANUAL ........................................................... C-1

APPENDIX D: WOOD CRIB FIRE TEST REPORT .................................................................. D-1

APPENDIX E: HYDROCARBON FIRE TEST REPORT ............................................................ E-1

ROTH USA CODE ANALYSIS – 1AAK00055.000.001 PAGE 1

JENSEN HUGHES

1. EXECUTIVE SUMMARY

Tanks constructed in conformance with Underwriters Laboratories (UL) 2258 Standard for Aboveground Nonmetallic Tanks for Fuel Oil and Other Combustible Liquids, and specifically the Roth DWT tank, were evaluated for compliance with the combustible liquid storage provisions of widely-enforced codes and standards. UL 2258-listed tanks are generally accepted for storage of combustible liquid heating oils in accordance with NFPA 31, however NFPA 30, which is the most widely-applicable combustible liquid storage tank code, generally discourages use of these tanks for the storage of other combustible liquids. NFPA 30 does not prohibit the use of nonmetallic tanks for specific applications, such as aboveground storage of Class IIIB combustible liquids, but the code also does not explicitly list UL 2258 as a recognized engineering standard for atmospheric tanks. Typically, authorities having jurisdiction are reluctant to approve tanks that are not constructed in accordance with the design standards listed in NFPA 30.

Prior attempts to incorporate tanks listed to UL SU 2258 into NFPA 30, have been unsuccessful primarily due to two factors. First, SU 2258 was not a consensus UL Standard. UL developed UL 2258 as a consensus standard to replace SU 2258; this standard was published on May 17, 2018. Second, the NFPA 30 technical committee requested a comprehensive review of applicable code requirements to more completely evaluate all applicable code provisions against the proposed uses of nonmetallic tanks.

In this report, specific requirements of codes and standards are discussed in detail, along with guidance for installing the Roth DWT in compliance with these requirements. Where the requirements in the existing codes and standards do not explicitly address a potential hazard that may exist in the use of tanks of combustible construction, including the Roth DWT, additional guidance is provided in this report. As discussed in this report, tanks constructed to meet UL 2258 (such as the Roth DWT tanks) are potentially able to comply with all the applicable code requirements when Class IIIB liquids are being stored in the tank. The primary open question is confirmation that the non-sealed joint between the containment dike and the dike lid has sufficient capacity to meet the minimum emergency venting requirements in NFPA 30. Further work is required to fully address storage of Class II and IIIA liquids inside buildings; there is potential to have a compliant installation outside with storage of Class II and IIIA liquids.

Recommendation #1: Perform secondary containment (interstitial space) vent flow testing to validate that Roth DWT meets NFPA 30 requirements for emergency venting.

Recommendation #2: Add language to Roth DWT installation instructions to advise that DWTs storing Class IIIB combustible liquids should not be installed in the drainage path of tanks storing Class I or Class II liquids.

Recommendation #3: Add language to NFPA 30 to limit nonmetallic tank operating temperatures to 140⁰F, unless an engineering evaluation conducted in accordance with Chapter 6 justifies such use.

Recommendation #4: Add language to NFPA 30 to require aboveground tanks constructed of combustible materials be installed at least 3 ft away from any surface heated to a temperature above 140⁰F, and at least 6 ft away from any open flame.

Recommendation #5: Add language to NFPA 30 prohibiting the use of electric tank immersion heaters where combustible liquids are stored in tanks constructed of combustible materials, unless an engineering evaluation conducted in accordance with Chapter 6 justifies such use.


JENSEN HUGHES

2. INTRODUCTION

The Roth DWT is a closed-top dike tank listed for storage of combustible liquids, including #2 fuel oil, diesel fuel, bio-fuels up to B20, and other fuels and lubricating oils. It is constructed of an inner blow-molded high-density polyethylene tank with an outer roll-seamed galvanized steel closed-top dike (see Figure 1). The combination of nonmetallic primary tank and galvanized steel closed-top dike provides the Roth DWT with a tank system which has no fittings below the oil line and is resistant to corrosion. It is available in several capacities in the range of 100 gallons to 400 gallons.

The Roth DWT has been offered for home heating oil storage since 1971, with more than 4 million installations to date. However, it wasn’t until nearly 30 years later that a product safety standard was developed for this new tank type when Underwriter’s Laboratories (UL) published SU 2258, Outline of Investigation for Nonmetallic Tanks for Oil-Burner Fuels and Other Combustible Liquids, in August 1999. SU 2258 provided design, construction, testing, and marking requirements for nonmetallic or composite aboveground combustible liquid storage tanks with capacity in the range of 60 gallons to 660 gallons. All Roth DWT tanks currently offered for sale in the USA and Canada are given a UL listing mark indicating compliance with all required design and testing standards of SU 2258. NFPA 31, Standard for the Installation of Oil-Burning Equipment, 2001 Edition incorporated SU 2258 as an approved standard of design for fuel oil tanks, providing a clear and comprehensive standard for the safe storage of combustible liquid fuel oils as part of a fuel oil heating system inside or adjacent to buildings using nonmetallic tanks. On May 17, 2018, UL 2258 was issued as a consensus standard that superseded SU 2258. Storage of combustible liquids in UL 2258-listed tanks in applications outside the scope of NFPA 31 is not currently addressed in the same manner by the applicable codes and standards.

Figure 1 - Exploded view of Roth DWT

1. 19 ga stamped galvanized steel dike ends

2. Blow-molded HDPE inner tank

3. Closed-top dike leak indicator

4. 19 ga rolled galvanized steel dike bottom and sides

5. Four (4) 2” NPT tank nozzles for fill, discharge, venting, and level monitoring

6. 19 ga stamped galvanized steel dike cover

7. 19 ga stamped galvanized steel rain cover (for outdoor installations)

The Roth DWT has recently been introduced into the automotive servicing/repair shops market, which includes storage of various combustible liquids. These facilities are addressed by NFPA Standards 30 and 30A, which have differing requirements from NFPA 31 to accommodate the wide variety of combustible liquids which may be stored, in addition to fuel oil. NFPA 30, 2018 Edition allows tanks to be


JENSEN HUGHES

constructed with combustible linings, and to be constructed of combustible materials for Class IIIB combustible liquid storage when approved, but does not allow the use of combustible tank construction for storage of other types of combustible liquids. During the most recent code development cycle for NFPA 30 the technical committee considered a proposal to permit storage of any combustible liquids in nonmetallic tanks listed to SU 2258 but did not accept the proposal. The two primary concerns expressed by the technical committee were that SU 2258 was an Outline of Investigation, rather than a full consensus standard, and that a comprehensive review of the existing potentially applicable code requirements was needed in order to see whether new code requirements are necessary to cover the proposed use.

The purpose of the current report is twofold. First, it will provide the requested comprehensive review of requirements for further consideration by the NFPA 30 technical committee. Second, it will provide information and guidance for end-users, design professionals, and authorities having jurisdiction to provide for safe installation of non-metallic tanks (constructed to a suitable tank design standard) for storage of combustible liquids in automotive servicing/repair shop applications. As part of this review the authors visited the Roth DWT manufacturing plant (observing the construction of several of the tanks), and multiple automotive repair facilities with approved installations of the Roth DWT for combustible liquid storage. In addition to NFPA 30, this report includes review of other relevant codes and standards for combustible liquid storage for both tank construction and installation requirements. Furthermore, this report discusses comparative fire test results against steel tanks approved for use under NFPA 30, including those performed by UL as part of the SU 2258 listing evaluation.

3. CODES AND STANDARDS

3.1. NFPA 1 – Fire Code, 2018 Edition

NFPA 1 is a comprehensive, integrated document intending to advance public fire and life safety as well as property protection using requirements derived from more than 130 NFPA codes and standards including NFPA 30 and NFPA 30A. NFPA 1 is adopted as the local fire code in many jurisdictions within the USA. NFPA 1 requirements for the design and installation of flammable and combustible liquid fixed storage tanks are derived from NFPA 30 and other occupancy-specific codes and standards (e.g. NFPA 30A).

3.2. International Fire Code (IFC), 2018 Edition

The International Fire Code, similarly to NFPA 1, is a comprehensive fire code adopted in many jurisdictions across the USA as the local fire code. IFC also references NFPA 30 for the design and installation of flammable and combustible liquid fixed storage tanks, however there are additional requirements in IFC which must be considered as well.

3.3. NFPA 30 – Flammable and Combustible Liquids Code, 2018 Edition

NFPA 30 addresses requirements for storage, dispensing, handling, transfer, and use of flammable and combustible liquids. It is referenced in both of the widely adopted fire codes – International Fire Code (IFC) and NFPA 1 (Fire Code) – as the code for construction and installation of tanks storing flammable or combustible liquids. Requirements regarding the design, installation, testing, operation, and maintenance of all fixed flammable and combustible liquid storage tanks in excess of 60 gallons capacity, including those listed under SU 2258, are addressed through a combination of the applicable fire code and NFPA 30.

Chapters 21 and 22 of NFPA 30 provide requirements for all aboveground flammable and combustible liquid storage tanks, regardless of the class of liquid stored. Certain provisions of these


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chapters, such as Section 21.7.1 for overfill protection and Section 22.11 for spill control, do not apply to storage of Class IIIB liquids at temperatures below their flash points. Chapter 24 of NFPA 30 provides specific requirements for storage tanks inside buildings where Class I, Class II, and Class IIIA liquids are stored at any temperature, and where Class IIIB liquids are stored in tanks heated above the flash point of the liquid stored. Chapter 24 does not apply where Class IIIB liquids are stored at temperatures below their flash points.

Section 4 of this report primarily addresses the requirements of NFPA 30, and the requirements of other codes and standards discussed as applicable to the topic at hand.

3.4. NFPA 30A – Code of Motor Fuel Dispensing Facilities and Repair Garages, 2018 Edition

NFPA 30A principally addresses requirements for vehicle fueling, with additional requirements for the storage of combustible liquids at vehicle fueling facilities and repair garages. For the design and installation of fixed tanks this code references NFPA 30, with limited additional requirements.

3.5. UL 2258 –Standard for Aboveground Nonmetallic Tanks for Fuel Oil and Other Combustible Liquids, 1st Edition (2018).

UL 2258 requirements cover nonmetallic or composite primary, secondary, and diked type atmospheric storage tanks from 60 to 660 gallons intended for the storage and supply of heating fuel for oil burning equipment, or for the storage of diesel fuels for compression ignition engines, or motor oils (new and used) for automotive service stations, in aboveground applications. Prior to May 17, 2018, similar requirements were given by UL SU 2258, Outline of Investigation for Aboveground Nonmetallic Tanks for Fuel Oil and Other Combustible Liquids. UL 2258 is the new consensus tank design standard for tanks previously considered under the Outline of Investigation.

4. DESIGN AND CONSTRUCTION REQUIREMENTS OF CODES AND STANDARDS

Note: References in this section are to NFPA 30, 2018 Edition unless otherwise noted.

4.1. Tank Construction Standards and Material Requirements

4.1.1. General Requirements for Tanks

NFPA 30 permits tanks to be designed and built in any shape, size, or type consistent with recognized engineering standards for the material of construction being used [§21.3.2]. NFPA 30 provides a list of approved design standards for atmospheric tanks, but it also allows tanks constructed in accordance with other recognized engineering standards [§21.4.2.1]. IFC requires that tanks be designed and constructed in accordance with approved standards [IFC §5003.2.1], and further that tanks shall be designed, fabricated, and constructed in accordance with NFPA 30 using materials in accordance with NFPA 30 [IFC §5704.2.7]. For the Roth DWT, the applicable engineering standard is UL 2258.

NFPA 30 further requires that metal tanks shall be welded, riveted and caulked, or bolted, or constructed using a combination of these methods [§21.3.2]. The Roth DWT steel secondary containment is a closed-top dike; while not subject to this requirement for metal tanks it is constructed with caulked and edge rolled side and bottom seams to provide a fluid-tight joint. The top cover is riveted and edge rolled to provide a secure mounting; the top is not liquid-tight and it does not retain pressure within the interstitial space between the primary tank and the dike.


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NFPA 30 provides additional design and construction requirements, including that tanks may be constructed of combustible materials for certain applications, and may have combustible linings in all applications where appropriate for the liquid being stored [§21.4.1, §21.4.1.3]. For aboveground tanks NFPA 30 allows the use of combustible tank construction when approved, for the following applications [§21.4.1.5]:

Where required by the properties of the liquid stored, For storage of Class IIIB liquids in areas not exposed to a spill or leak of Class I or Class

II liquids, and

For storage of Class IIIB liquids inside a building protected by an approved automatic fire-extinguishing system.

There is no capacity limit given for tanks constructed in accordance with the requirements for combustible tank construction. These provisions are more restrictive than those of NFPA 31, which also allows the storage of Class II and Class IIIA combustible liquids in tanks constructed in accordance with UL SU2258.

NFPA 30 does not require additional corrosion protection measures for tanks designed in accordance with Underwriters Laboratories Inc. standards [§21.4.5]. Furthermore, NFPA 30 does not require tanks with an approved listing mark, such as the UL mark, to be tested prior to being placed in service [§21.5.1.1].

NFPA 30 requires that tank supports be designed and constructed in accordance with recognized engineering standards [§22.5.1.1]. The Roth DWT is provided with a galvanized steel base assembly constructed in accordance with UL 2258. For Class I, Class II and Class IIIA liquid storage, the tank supports shall be of concrete, masonry, or protected steel construction [§22.5.2.3]. However, steel saddle supports less than 12 inches high at their lowest point are not required to be protected [§22.5.2.4]. The Roth DWT steel base assembly is less than 12 inches high at all points so no additional protection is required.

All storage tanks installed in accordance with NFPA 30 are required to be evaluated to ensure adequate fire and explosion prevention and control procedures and measures for tank storage facilities are provided [§21.6.3]. As part of this evaluation, a facility emergency plan is required to be implemented to address procedures to be used in case of fire, explosions, or accidental release of liquid and other related requirements for emergency response organization [§21.6.5.1].

4.1.2. Comparison to Requirements for Intermediate Bulk Containers (IBCs)

Composite Intermediate Bulk Containers (IBCs) are commonly used for storage and transport of combustible liquids. These containers, which commonly consist of a polyethylene inner receptacle inside of a metal “cage” support (see Figure 2), are permitted by NFPA 30 to be used in sizes up to 793 gallons for storage of combustible liquids [Table 9.4.3]. Composite IBCs are required to be listed and labeled in accordance with UL 2368, Standard for Fire Exposure Testing of Intermediate Bulk Containers for Flammable and Combustible Liquids, or FM Class 6020, or an equivalent standard, and must be provided with pressure venting means in accordance with NFPA 30 requirements for tanks (refer to Section 4.2 of this report) [NFPA 30 §9.4.1, §9.4.2].


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Figure 2 – Typical Composite IBC

Despite the lack of metallic secondary containment, storage of combustible liquids in composite IBCs has the same, or in some cases higher [NFPA 30 Table 10.7.1], maximum allowable quantities per control area (MAQs) as those given for fixed tanks in both NFPA 30 and IFC. Sprinkler design criteria for protected indoor palletized storage of Class II and Class III combustible liquids in rigid nonmetallic IBCs require only ceiling sprinkler protection for up to 2 high storage [Table 16.5.2.9]. Compared to exposure-protection sprinkler criteria for indoor storage in fixed tanks, the criteria for IBCs are similar – i.e. fixed tanks are permitted to be protected with only ceiling sprinklers where these provide the spray density requirements stated in NFPA 15 for exposure protection of tanks.

4.2. Requirements for Venting in Normal Operation and for Emergency Relief

4.2.1. Normal Venting

NFPA 30 requires tanks to be provided with normal vents to prevent development of vacuum or pressure due to tank filling or emptying, or due to changes in atmospheric temperature [§21.4.3.1]. As explained in A.21.4.3.2, normal venting is not required for the interstitial space of a secondary containment tank. Normal vents are required to be sized by an approved standard, or to be at least as large as the largest filling or withdrawal connection, with a minimum inside diameter of 1.25 inch [§21.4.3.3]. For tanks storing Class IIIB liquids NFPA 30 permits the use of tank vents that are normally open to atmosphere. For tanks storing Class I, Class II or Class IIIA liquids in buildings, the tank vents must discharge outside the building to a safe location [§24.13.5]. IFC requires that all combustible liquid vent outlets must discharge outside a building except for tanks storing Class IIIB liquids with normally closed vents [IFC §5704.2.7.3.3]. The Roth DWT is provided with four (4) tank nozzles, all equally sized at 2” NPT, which allows flexibility in placement and configuration of the normal vent.

4.2.2. Emergency Venting

NFPA 30 requires that every aboveground storage tank be provided with emergency relief venting to relieve excessive internal pressure caused by an exposure fire. This emergency relief venting may be provided by either a pressure-relieving device or by preventing excessive pressure buildup through the form


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of construction of the tank. [§22.7.1.1]. This requirement is also applicable to the enclosed space of tanks of closed-top dike construction, such as the Roth DWT [§22.7.1.1.1]. IFC requires that fixed aboveground tanks be provided with emergency venting installed and maintained in accordance with Section 22.7 of NFPA 30 [IFC §5704.2.7.4].

For the plastic inner tank of the Roth DWT, emergency relief venting is to be provided by pressure-relieving devices. NFPA 30 requires that where dependence for emergency relief venting is placed upon pressure relief devices, the total venting capacity of both normal and emergency vents shall be sufficient to prevent rupture of the shell or bottom of the tank [§22.7.3.1]. For the atmospheric tank design standards listed in NFPA 30, this capacity is prescribed for a maximum gauge pressure of 2.5 psi under emergency venting conditions [§21.4.2.1.4], as given in Table 22.7.3.2. Although UL 2258 is not currently listed in NFPA 30 as a design standard, the same hydrostatic test pressures are given in UL 2258 as in the listed UL 80 standard, so tanks listed under UL 2258 may be considered suitable to attain a gauge pressure of up to 2.5 psi under emergency venting conditions.

For the metal closed-top dike of the Roth DWT, emergency relief venting is to be provided by the form of construction of the dike. The top cover of the dike does not retain pressure, as the seam with the dike walls and the nozzle openings are not sealed. NFPA 30 does not provide a specific vent flow rate requirement where venting is accomplished by form of construction, however the prescriptive vent flow requirements provided by §22.7.3 provide a conservative basis for preventing overpressure of the closed-top dike in an emergency venting situation.

For tanks storing Class I, II and IIIA liquids in buildings, NFPA 30 requires tank vents be designed to ensure that vapors are not released inside the building [§24.13]. Although the Roth DWT primary tank can be made to comply with these provisions, emergency venting from the closed-top dike relies upon leakage through the non-vapor-tight seam at the top cover. In the typical Roth DWT installation, there is not currently a means to route the vapors that may vent through that top seam to the outside of the building. Therefore, where installed inside a building in accordance with NFPA 30, the current Roth DWT design is only able to comply with this requirement when used for storage of Class IIIB liquids. Storage of Class II or IIIA liquids inside buildings would require additional measures to be taken.

The required venting capacity per NFPA 30 Table 22.7.3.2 is given in Table 1 for each model in the Roth DWT series, as well as the venting capacity reduction allowable when the tank is protected with an automatic water spray system that meets the requirements of NFPA 15 [§22.7.3.5(1)] or when an indoor tank is protected with an automatic sprinkler system in accordance with NFPA 13 with spray density and coverage of the tank in accordance with NFPA 15 [§24.13.4].

Table 1 - Required Emergency Venting Capacity for Each Roth DWT Model per NFPA 30 Table 22.7.3.2

Tank Model Wetted

Surface Area (ft2)

Required Vent Capacity (Cubic Feet per Hour)

Required Vent Capacity with Water Spray

(Cubic Feet per Hour)

DWT 400L 36.5 ft2 38,425 CFH 11,528 CFH

DWT 620L 50.0 ft2 52,700 CFH 15,810 CFH

DWT 1000L 63.6 ft2 66,980 CFH 20,094 CFH

DWT 1000LH 65.8 ft2 69,290 CFH 20,787 CFH

DWT 1500L 93.0 ft2 97,860 CFH 29,358 CFH


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For many combustible liquids, especially Class IIIB liquids, NFPA 30 Equation 22.7.3.4, depicted in Figure 3 below, may be used in lieu of Table 22.7.3.2 to reduce the required venting capacity. For many Class IIIB combustible liquids, Equation 22.7.3.4 would require an emergency venting capacity which can be provided by a 2” normal vent alone (approximately 27,000 CFM, depending on particular vent in use). For example, as depicted in Table 2 below, a DWT-1500L storing Class IIIB white mineral oil has a calculated vent capacity requirement of 14,851 cubic feet per hour. However, for a DWT-1500L storing Class II fuel oil 1-D the calculated venting capacity is slightly higher than that prescribed by Table 22.7.3.2.

Figure 3 - NFPA 30 Equation 22.7.3.4

Automatic water spray or sprinkler protection greatly reduces venting capacity requirements, and may be applied to the venting rates given in Table 22.7.3.2 as well as venting rates calculated by Equation 22.7.3.4. For example, as depicted in Table 1 above, a 2” open normal vent rated for 27,000 SCFH can also provide the required emergency venting capacity for all DWT models (except the largest tank, the DWT 1500L) storing any combustible liquid, when protected by a compliant sprinkler or spray system. The DWT 1500L (with sprinkler or spray protection) would require a single emergency vent in addition to the normal vent. Figure 2 below shows photos of normal vents in two different installations.

Table 2 - Required Emergency Venting Capacity for Each Roth DWT Model per NFPA 30 Eq. 22.7.3.4 for Sample Combustible Liquids

Tank Model NFPA 30 Table

22.7.3.2 Vent Capacity (Cubic Feet per Hour)

Calculated Vent Capacity for Class II (Fuel Oil**) (Cubic Feet per Hour)

Calculated Vent Capacity for Class IIIB

(White Mineral Oil*) (Cubic Feet per Hour)

DWT 400L 38,425 CFH 40,962 CFH 5,831 CFH

DWT 1500L 97,860 CFH 104,321 CFH 14,851 CFH

*MultiTherm IG-1: L = 420 BTU/lb, M = 440, See Appendix A for product datasheet **Fuel Oil 1-D: L = 110 BTU/lb, M = 130, See Appendix B for product datasheet

4.3. Spill Containment

NFPA 30 requires every tank storing a Class II or Class IIIA liquid to be provided with means to prevent an accidental release of liquid from endangering important facilities and adjoining property or from reaching waterways [§22.11]. NFPA 30 does not require secondary containment for tanks storing Class IIIB liquids. IFC requires that tanks storing Class I, Class II, or Class IIIA liquids in excess of the maximum allowable quantity per control area (MAQ) be provided with secondary containment. The MAQs given in IFC for combustible liquids are listed in Table 3 below.

The Roth DWT is provided with a galvanized steel closed-top dike for spill control, in accordance with NFPA 30 requirements for a closed-top dike [§22.11.3]. The closed-top dike is sized for 110% of tank capacity, in accordance with UL 2258 requirements. NFPA 30 requires that the outside base of the dike at ground level shall be no closer than 10 ft to any property line that is or can be built upon [§22.11.3.3], which


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is identical to the requirement for tank spacing given in Table 22.4.1.1(b) for an unprotected tank up to 275 gallons, and less than the requirement for an unprotected tank of 276 gallons or more. Primary tanks within closed-top dikes are limited to 50,000 gallons capacity (§22.11.3.7], well in excess of the maximum size permitted by UL 2258. The primary tank connections are made above the normal maximum liquid level [§22.11.3.8]. The secondary containment is listed under UL 2258 and provided with a UL listing mark in accordance with Chapter 21 testing requirements, and in addition each Roth DWT dike is factory pressure tested to verify integrity of the dike [§22.11.3.11].

Figure 2 - Class IIIB indoor storage (L) Roth DWT with dedicated normal vent; (R) Roth DWT with normal vent on tee

Where the normal vent and emergency vent device or both discharge outside the enclosure created by the closed-top dike, as is typically required for indoor storage of combustible liquids, the tank within the enclosure is required to comply with certain provisions for Secondary Containment-type tanks as described in §22.11.4 [§22.11.3.12]. These requirements are also applicable where the tank fill connection is located outside the enclosure created by the closed-top dike [§22.11.3.13]. First, the tank shall be provided with means for determining the level of liquid in the tank accessible to the delivery operator [§22.11.4.4]. Second, the tank shall be provided with means to prevent overfilling by sounding an alarm when the liquid level in the tank reaches 90 percent of capacity and by automatically stopping delivery of liquid to the tank when the liquid level reaches 95 percent of capacity [§22.11.4.5]. These functions may be provided by separate devices; for example, the overfill alarm function may be provided by a level transmitter and alarm horn while the automatic fill cutoff function may be provided by an overfill prevention valve. IFC also requires liquid-level limit control or other approved means to prevent overfilling of the tank for atmospheric tanks having a capacity greater than 500 gallons [IFC §5003.2.7] or for storage tanks located inside of buildings where MAQ is exceeded [IFC §5704.2.9.5.1]. While the Roth DWT is not available in sizes greater than 400 gallons, other tanks constructed to UL 2258 may be required to comply with this requirement.

IFC accepts listed secondary containment tanks as meeting secondary containment requirements without additional drainage control and diking [IFC §2306.5, IFC §5704.2.10(2)].


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Table 3 - Maximum Allowable Quantities (MAQ) per Indoor Control Area per IFC Table 5003.1.1(1)

Combustible Liquid Class

MAQ (gallons)

MAQ in building protected throughout with automatic sprinkler system (gallons)

Class II 120 240 gal.

Class IIIA 330 660 gal.

Class IIIB 13,200 Unlimited

4.4. Other Requirements

4.4.1. Fire Protection

NFPA 30 does not require additional fire protection for fixed-roof aboveground storage tanks containing Class II or Class III liquids at temperatures below their flash point when installed in accordance with Chapter 22 of NFPA 30 [§22.8]. However, both NFPA 30 and IFC requires fire protection in certain cases such as where emergency venting capacity is reduced. These requirements are discussed in more detail in Section 4.2.2 of this report. Automatic sprinkler system protection may also be utilized to increase MAQ, which can reduce spill control requirements and storage tank building requirements as discussed in Sections 4.3 and 4.4.3 of this report, respectively.

4.4.2. Tank Spacing

Aboveground storage tanks storing other than Class IIIB liquids and operating at less than 2.5 psi are required to be located in accordance with NFPA 30 Table 22.4.1.1(a) and Table 22.4.1.1(b) [§22.4.1.1]. Tanks storing Class IIIB liquids which are not located within the same dike or drainage path as tanks storing Class I or Class II liquids are required to be located in accordance with NFPA 30 Table 22.4.1.6 [§22.4.1.6; note that it is generally not permitted to store Class IIIB liquids in tanks of combustible construction where in the drainage path of tanks storing Class I or Class II liquids. These requirements, as applied to Roth DWT models, are given in Table 4 below.

Table 4 - Location of Aboveground Storage Tanks

Tank Model

Distance from Nearest Property Line That Can Be

Built Upon or Opposite Side of Public Way (Feet)

Distance from Nearest Side of Public Way or

from Important Building on Property (Feet)

Other DWT Models 10’ (5’ for Class IIIB only) 5’

DWT 1500L 20’ (5’ for Class IIIB only) 10’ (5’ for Class IIIB only)

Tanks storing Class IIIB liquids are not required to have any separation per NFPA 30 [§22.4.2.1.2]. Where NFPA 30A is applicable, the minimum shell-to-shell separation distance is 3’ for all tanks that are not located in compartmented vaults [NFPA 30 Table 4.3.2.4], including for tanks storing Class IIIB liquids. Tanks storing Class II or Class IIIA stable liquids are required to be separated by the distances given in NFPA 30 Table 22.4.2.1 [§22.4.2.1]. Due to the relatively small dimensions of the Roth DWT models, in all cases where stable combustible liquids are stored in a Roth DWT the shell-to-shell separation distance requirement from another Roth DWT does not exceed 3’.


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4.4.3. Storage Tank Buildings

Under IFC, storage tank buildings are required to be constructed in compliance with the International Building Code [IFC §5003.8.1] and the additional provisions of IFC Section 5003.8, which are identical to the requirements of the International Building Code for the installation of UL 2258-listed tanks.

IFC also requires spill control for rooms, buildings, or areas used for the storage of combustible liquids in tanks having a capacity of more than 55 gallons. Spill control may be provided with liquid-tight floors, sumps and collection systems, or other approved engineered systems, or a combination of these methods [IFC §5004.2.1]. Secondary containment is not required by IFC for storage of Class IIIB liquids, however where MAQ is exceeded for Class I, Class II, and Class IIIA liquids (see Table 3) the spill control shall be provided in accordance with IFC requirements for secondary containment [IFC §5703.4]. Indoor storage areas and storage buildings are required to be provided with mechanical exhaust ventilation, or natural ventilation where this can be demonstrated to be acceptable for the materials as stored [IFC §5004.3]. Standby or emergency power in accordance with IFC Section 1203 is required to be provided for mechanical ventilation or other electrically operated systems required by IFC for storage tank buildings.

IFC requires that indoor storage areas and storage buildings which contain control areas with quantities of combustible liquids in excess of MAQ (See Table 3) be equipped throughout with an approved automatic sprinkler system. The sprinkler system design is required to be at least Ordinary Hazard Group 2 with a minimum design area of 3,000 square feet [IFC §5004.5]. Note that where an automatic sprinkler system is provided throughout a building the MAQ can be increased by 100%, and where this increased MAQ is not exceeded the requirements of IFC Section 5004 do not apply [IFC §5004.1].

NFPA 30 Chapter 24 provides requirements for the installation of tanks storing Class II and Class IIIA combustible liquids in storage buildings; this chapter does not apply to tanks storing Class IIIB liquids. Sections 24.4 and 24.5 provide requirements for location and construction of storage tank buildings. Most importantly, these sections require that tanks in buildings be accessible from at least two sides for firefighting and fire control [§24.4.8] and that the building be constructed so as to maintain structural integrity for 2 hours under fire exposure conditions and to provide access and egress for unobstructed movement of all personnel and fire protection equipment [§24.5.1].

NFPA 30 requires that a reliable water supply or other suitable fire control agent be available in accordance with the facility fire hazard analysis [§24.6.2.1]. The facility is required to be designed to prevent the discharge of combustible liquids; solid floors are required to be liquidtight to at least 4 inches above the floor level with openings protected by either a raised sill or ramp, or by an open-grated trench across the width of the opening that drains to a safe location [§24.9.2-4]. Ventilation may be provided by either mechanical or natural means, with discharge or exhaust to a safe location outside the building [§24.10.3]. Vents for tanks inside tank buildings are required to be designed to ensure that vapors are not released inside the building [24.13.1]. As discussed further in Section 4.2.2 of this report, in storage tank buildings automatic sprinkler systems may be accepted as equivalent to water spray systems for purposed of determining required emergency vent flow, provided the density and coverage requirements of NFPA 15 are met [§24.13.4]

For tank openings other than vents in storage tank buildings, NFPA 30 requires that these openings be liquidtight, normally closed, and mechanically secured to prevent the release of vapors [§24.14.2]. For tanks storing Class II liquids, each liquid transfer connection is required to be provided with a normally closed remotely activated valve, an automatic-closing, heat-activated valve, or other approved device to stop the flow of liquid [§24.14.3]. The inlet of the fill pipe and the outlet of a vapor recovery line for which connections to tank vehicles and tank cars are made and broken shall be located outside of the building


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away from any source of ignition, at least 5 ft away from any building opening, closed tight and protected against tampering when not in use, and marked for identification [§24.14.7]. Tanks storing Class II or Class IIIA liquids inside buildings are required to be equipped with a device or other approved means to prevent overflow into the building [§24.14.8].

NFPA 30A does not limit the quantity of Class IIIB liquids in aboveground storage tanks [NFPA 30A §4.3.9.3], provided that the tank installation meets the requirements of NFPA 30 Chapters 21 and 22. For Class II and Class IIIA liquids, NFPA 30A allows the installation of aboveground tanks larger than 120 gal. capacity where the tank is installed in a vault and the installation is approved by the authority having jurisdiction [NFPA 30A §4.3.9.2]. For the same liquids, aboveground tanks smaller than 120 gal. capacity, such as the Roth DWT 400L, may be installed with an aggregate quantity of up to 240 gallons (i.e. two 120 gal. tanks) with no requirement for installation in a vault [NFPA 30A §4.3.9.1].

4.4.4. Fire and Explosion Prevention and Risk Control

NFPA 30 generally requires that operations involving flammable and combustible liquids be reviewed to ensure fire and explosion hazards are addressed by fire prevention, fire control, and emergency action plans [§6.4.1]. However, the code provides an exception for operations where combustible liquids are stored in atmospheric tanks and transferred at temperatures below their flash points. In this case, compliance with the prescribed requirements of NFPA 30 is considered to adequately address the fire and explosion hazards of these combustible liquids operations.

NFPA 30 also requires that all liquid storage tanks be provided with a sign or marking that meets the requirements of NFPA 704 or another approved system, to be located on the side of the tank or other visible location in order to provide identification for emergency responders. If more than one tank is installed in an area the markings shall be placed so that each tank can be identified [§21.7.2.1].

4.4.5. Installation, Inspection, and Maintenance

NFPA 30 requires that factory-built aboveground tanks shall be provided with instructions for testing the tanks and for installation of the normal and emergency vents [§22.16]. Tanks constructed of nonmetallic materials shall be inspected and maintained in accordance with the manufacturer’s instructions and the requirements of applicable standards, including NFPA 30 itself [§21.8.2, §22.17.3]. Each model of the Roth DWT ships with installation, testing, and inspection instructions, and these are also available online at the Roth USA website. Refer to Appendix C for a copy of the current Roth DWT installation instructions.

NFPA 30 requires that tank openings that are not liquidtight shall extend above the maximum flood stage water level [22.14.3]. The Roth DWT is liquidtight below the top cover, but the top cover is not liquidtight. NFPA 30 also requires tanks located in areas subject to flooding to be provided with means to prevent tanks, either full or empty, from floating during a rise in water level up to the established maximum flood stage [§22.5.2.7]. In locations subject to flooding the appropriate Roth tie-down kit, as described in the manufacturer’s installation manual, shall be used for the Roth DWT model to be installed.

Additional consideration must be made for installation of nonmetallic tanks due to the lower melting point of many nonmetallic tank materials. For high-molecular-weight polyethylene, such as that used in the Roth DWT, the melting point is approximately 276⁰F, while the maximum continuous temperature is approximately 140⁰F. To prevent exceedance of this limit, Roth DWT tanks shall not be operated at temperatures exceeding 140⁰F. It is also recommended that Roth DWT installations be at least 3 feet away from any surface heated to a temperature above 140⁰F and at least 6 feet away from any open flame. These distances are minimum recommendations; further separation may be required where installed near


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very hot surfaces or large open flames. Tank immersion heaters should not be used in Roth DWT installations unless an engineering evaluation conducted in accordance with NFPA 30 Chapter 6 justifies such use.

5. Fire Tests on Roth DWT

Around the time UL SU2258 was adopted and incorporated into NFPA 31 the Roth DWT underwent several fire tests to establish a baseline of performance relative to steel combustible liquid storage tanks of comparable size, as well as to fulfill the fire testing requirement of UL SU2258. In both wood crib and hydrocarbon fire tests the Roth DWT exhibited similar performance relative to comparable steel tanks with respect to observed temperatures at the tank wall and of the liquid inside the tank during the test interval.

5.1. Wood Crib Fire Test

In 1997, Intertek Testing Services (Canada) performed wood crib fire testing with the aim of comparing the behavior of the Roth DWT with that of a reference ULC S-602 listed single-walled steel tank when subjected to a representative building fire. ULC S-602 is a UL Canada standard which is equivalent to UL 80. The objective of this test was to determine if the Roth DWT would introduce a potential danger to life and property greater than the reference tank. The criteria for measuring this objective were selected as: maximum temperature of unexposed tank wall, maximum temperature of liquid inside tank, and tank containment integrity.

The test was performed using a Roth DWT-1000L model and a ULC S-602 listed 900-liter steel tank. Both tanks were installed in a well-ventilated room with the vent pipes discharging to the exterior of the building through a window. Each tank was filled to 75% of its capacity with a 50-50 mix of #1 heating oil (Class II combustible liquid) and water.

Figure 5 - Wood Crib Fire Test Configuration (2 of 4 crib stacks visible)

The combustible fuel load for the test was made up of four (4) stacks of 2”x4” spruce, each stack consisting of twenty-four (24) layers of four (4) 18-inch boards each, for a total height of 40 inches. This represents a height of approximately 2/3 of the tanks’ height. The stacks were placed in a shallow pan filled


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with 5 liters of n-heptane. The DWT-1000L and S-602 steel tank were placed on opposite sides of the stacks, each located so that the long wall of the tank was spaced 18” from the stacks.

During the test thermocouples were used to measure the temperature of the unexposed long wall and the temperature of the liquid inside each tank. The n-heptane was ignited at T+1 minute, after which the fire burned until T+108 minutes, which marked the end of the test as the fuel load was consumed. During this test, the Roth DWT-1000L exhibited a lower rate of heat transfer to the unexposed tank wall and to the liquid inside, which resulted in lower maximum temperatures at each of these locations relative to the steel tank. Both tanks maintained containment integrity at all points during the test and remained usable after the test with only minor repairs required to restore tank function. Refer to Appendix D for additional information on this wood crib fire test.

Table 5 - Wood Crib Fire Test Results

Criteria Roth DWT-1000L ULC S-602 900-liter steel tank

External Maximum Wall Temperature (Deg. F)

89.6 343

Internal Liquid Maximum Temperature (Deg. F)

131 199.4

Tank Containment Failure?

No No

Tank Still Usable After Test?

Yes, with gauge replacement Yes, with gauge replacement

Figure 6 – Disassembled View of Roth DWT-1000 Primary Tank Exposed Side (L.) and Steel Containment (R.) after Wood Crib Fire Test


JENSEN HUGHES

5.2. Pool Fire Test

In 2000, Underwriters Laboratories Inc. performed hydrocarbon pool fire tests per UL SU2258 on a Roth DWT-620L with the objective of evaluating compliance with UL SU2258 requirements. During this test, a steel UL 80-listed tank of comparable size (Vaughn AFT-225) was also tested per UL SU2258 to establish a baseline of performance. The UL SU2258 pool fire test acceptance criteria are:

The tank system shall contain all of the test fuel even if distortion or melting are present; The tank system shall not sustain damage which would result in a hazard such as tip-over

or loss of containment, and;

The primary tank pressure shall not exceed 2.5 psig.

Any damage sustained during the UL SU2258 Normal and Abnormal Use tests was re-created for the fire test sample of each tank. Each tank was installed in a primary test pan sized 6 inches longer than the length and width of the test tank footprint, set 2 feet from a 7-foot-high backwall to simulate an indoor installation against one wall. A secondary test pan, approximately 10 feet by 8 feet by 1 foot deep, was provided to contain spills if the tank failed during testing. Refer to Figure 7 below for a diagram of the test fixture. Each tank was filled to half of its rated capacity with #2 fuel oil. The primary fire pan was then primed with approximately 1/8” depth of #2 fuel oil, with additional fuel dispensed by a controlled dosing pump to sustain fire within the test pan for the 30-minute test duration.

Figure 7 – Fire Test Fixture for UL SU 2258 Fire Test

Table 6 - Pool Fire Test Results

Criteria Roth DWT-620L Vaughn AFT-225

External Maximum Wall Temperature (Deg. F) 1292 1508

Internal Liquid Maximum Temperature (Deg. F) 277 410

Maximum Tank Pressure (psig) 0.9 1.4

Tank Containment Failure? No No


JENSEN HUGHES

During the test thermocouples were used to measure the temperature of each tank surface, each surface of the Roth DWT closed-top dike, and the liquid within each tank. Tank pressure was monitored by a pressure gauge attached to the tank fill connection using 2” Schedule 40 steel pipe. During this test, the Roth DWT-620L exhibited lower maximum temperatures at both the external surface of the tank and at the liquid inside. The Roth DWT-620L tank did not lose containment integrity at any point during the test and did not exceed 1 psig internal pressure. Refer to Appendix E for additional information on the hydrocarbon pool fire test.

6. CONCLUSIONS

Upon review of tanks constructed to UL 2258 against tank construction standards, requirements of installation codes, and comparative fire testing, it was found that with few additional considerations such tanks may be installed to provide an acceptable level of fire safety for combustible liquids storage, comparable to non-protected steel tanks of equal size. Although NFPA 30, which is referenced by both IFC and NFPA 1 for tank construction requirements, does not currently list UL 2258 as a recognized engineering standard, the existing requirements of this code for tank construction and installation which apply to all aboveground storage tanks provide a near-comprehensive set of requirements for use of such tanks for storage of combustible liquids. As discussed in this report, the typical installation of a Roth DWT tank is potentially able to comply with all the applicable code requirements when Class IIIB liquids are being stored in the tank. The primary open question is confirmation that the interstitial space between the primary tank and the containment dike has sufficient capacity to meet the minimum emergency venting requirements in NFPA 30.

The current design and typical installation of the Roth DWT is unsuitable for use inside buildings where storing Class II and Class IIIA combustible liquids as the venting arrangement for the closed-top dike cannot be made to prevent the potential release of vapors inside the building in accordance with NFPA 30 Chapter 24 and IFC Chapter 57 requirements.

To provide assurance that the Roth DWT secondary containment is constructed in accordance with NFPA 30 emergency relief venting requirements the following action is recommended:


To align the use of UL 2258-listed combustible storage tanks for storage of combustible liquids with the existing safeguards intended by NFPA 30, the following actions are recommended:





ROTH USA CODE ANALYSIS – 1AAK00055.000.001 PAGE A-1

JENSEN HUGHES

APPENDIX A: MULTITHERM IG-1 (WHITE MINERAL OIL) DATASHEET

Toll-Free: 800-225-7440 • Direct: 610-408-8361 • Fax: 610-408-8365Web: www.multitherm.com • Email: [email protected]

3223 Phoenixville Pike, Malvern, PA 19355PO Box 579, Devault, PA 19432

MultiTherm® is offering an economicalheat transfer fluid for closed-loop systems. PurposeMultiTherm IG-1® is a highly refined;hydrotreated mineral oil designed primarilyfor use in closed loop heat transfersystems. MultiTherm IG-1® is designed foruse in systems that are equipped withexpansion tanks, and it is recommended tohave pressure relief valves and an inert gasblanket on the system. In properlydesigned systems it will provide trouble-free, long lasting service.

ApplicationsMultiTherm IG-1® is an excellent heattransfer fluid used in numerous industriesthat are looking for an economical heattransfer fluid for various manufacturingprocesses. Common applications forMultiTherm IG-1® heat transfer equipmentused in manufacturing of asphalt shinglesand roofing compounds, road-pavingequipment, die-casting, paper and particle board.

Closed Loop SystemsMultiTherm IG-1® is designed for use inliquid-phase heat transfer systems, whichare “closed” to the atmosphere. Wherepractical, it is recommended that there bean inert gas blanketing the systemsexpansion tank to guard against exposureto air and water to reduce the need tochange-out the fluid prematurely.

MultiTherm IG-1®‚ heat transfer fluid isdesigned with a maximum filmtemperature of 600°F / 316°C and amaximum bulk temperature of 550°F /288°C.

Low Vapor PressureMultiTherm IG-1® heat transfer fluid has alow vapor pressure compared to othereconomical heat transfer fluids. This isimportant because fluid boil-off is an issuein open systems. The rate of boil-off of aheat transfer fluid is dependent on the fluidvapor pressure. The higher the vaporpressure, the greater the rate of fluid boil-off.

High Flash Point MultiTherm IG-1® also offers the benefit ofhaving a high flash point of 442°F / 228°Ccompared to other economical heattransfer fluids on the market.

Easy DisposalMultiTherm IG-1® is generally simpler todispose of than many synthetic thermalliquids. Used, uncontaminated fluid can betreated as a used lubricating oil, and handledthrough a local waste oil processor. Checkwith all applicable regulations in advance.

Benefits of MultiTherm IG-1®

n Economicaln Excellent Thermal Conductivity

at high temperaturesn Resists Thermal Breakdown

in closed-loop systemsn Long Service Life and Excellent

performance in closed-loop systemsn Non-Corrosive, Non-Toxic

and Non-Hazardous material

HEAT TRANSFER FLUID

Chemical Type White Mineral OilAppearance Clear, Liquid, ColorlessOdor NonePour Point, ASTM D97 +5°F / -15°CDensity @ 60°F / 15°C 7.22 lb/gal / 0.8624 g/mlFlash Point, coc, ASTM D92 442°F / 228°CFire Point, coc, ASTM D92 505°F / 263°CAutoignition Point ASTM D2155 670°F / 354°CAtmospheric Boiling Point (10%) 705°F / 374°C

ASTM D1160

Maximum Film Temperature 600°F / 316°CMaximum Recommended 550°F / 288°C

Bulk TemperatureMolecular Weight 440Pumpable, Temperature @ 2000cP 0°F / -18°CHeat of Vaporization @ 600°F / 316°C 420 BTU/lb / 977 kJ/kgHeat of Combustion 18,250 BTU/lb / 42.4 MJ/kgCoefficient of Thermal Expansion 0.00054/°F / 0.00098/°C

*Typical properties, not specifications.

PHYSICAL CHARACTERISTICS MULTITHERM IG-1® PHYSICAL CHARACTERISTICS MULTITHERM IG-1®

MultiTherm IG-1®

An Economical, General Purpose Fluid for Liquid Phase Heating-Systems



IG-1 7/04

Temperature Density Viscosity Specific Thermal Vapor Heat Conductivity Pressure

°F °C Sp Gr lb/gal lb/ft3 cSt cP lb/ft-hr Btu/(lb-°F) Btu/(h-ft-°F) mm Hg psia

20 -6.7 0.881 7.35 54.98 624 550 1331 .419 0.0815

50 10.0 0.869 7.25 54.23 229 199 482 .442 0.0808

100 37.8 0.852 7.11 53.19 54 46 111 .466 0.0795

150 65.6 0.836 6.98 52.18 16.3 13.63 33.0 .490 0.0783

200 93.0 0.821 6.85 51.24 7.7 6.32 15.3 .514 0.0770 0.0031 0.0000599

250 121.1 0.805 6.72 50.26 4.29 3.45 8.35 .538 0.0757 0.015 0.000291

300 148.8 0.791 6.60 49.37 2.84 2.25 5.44 .563 0.0745 0.113 0.002190

350 176.7 0.776 6.48 48.47 2.01 1.56 3.77 .587 0.0733 0.850 0.016440

400 204.4 0.762 6.36 47.58 1.52 1.16 2.81 .611 0.0720 2.6 0.050280

450 232.2 0.747 6.24 46.65 1.21 0.907 2.19 .635 0.0708 10.9 0.210780

500 260.0 0.733 6.28 45.74 0.988 0.725 1.75 .659 0.0695 30 0.580100

550 287.8 0.720 6.01 44.95 0.830 0.598 1.45 .684 0.0683 70 1.353600

600 315.6 0.706 5.89 44.08 0.707 0.499 1.21 .705 0.0672 156 3.016500

PHYSICAL PROPERTIES

MultiTherm IG-1®

Warranty: MultiTherm® warrants that MultiTherm IG-1® conforms to the data set forth in this brochure. We present this information in good faith, but because wecannot control or anticipate the many different conditions under which our information and product may be used, no other warranty, expressed or implied, is given.


m2/s mPa-s°C °F g/cc kg/m3 cSt cP J/(kg-°K) W/(m-°K) mm Hg hPa

-10 14 0.882 882 1272 1121 1818 0.1363

-20 -4 0.884 884 3030 2679 1742 0.1416

-10 14 0.879 879 1734 1524 1777 0.1412

0 32 0.873 873 438 383 1812 0.1407

10 50 0.868 868 229 199 1861 0.1398

20 68 0.861 861 110 94.83 1884 0.1388

40 104 0.850 850 39.90 33.94 1959 0.1359 0.000049 0.0000945

60 140 0.839 839 18.60 15.61 2031 0.1359 0.00020 0.0000386

80 176 0.827 827 10.30 8.496 2102 0.1345 0.00096 0.0000185

100 212 0.816 816 6.400 5.229 2177 0.1328 0.00415 0.0000803

120 248 0.805 805 4.360 3.515 2248 0.1312 0.0120 0.000227

140 284 0.794 794 3.170 2.521 2324 0.1296 0.0650 0.00126

160 320 0.783 783 2.430 1.907 2395 0.1281 0.32 0.00618

180 356 0.773 773 1.930 1.494 2470 0.1265 0.96 0.0186

200 392 0.763 763 1.580 1.207 2541 0.1250 2.10 0.0406

220 428 0.752 752 1.330 1.002 2612 0.1234 4.50 0.087

240 464 0.742 742 1.140 0.848 2688 0.1218 15 0.29

260 500 0.732 732 0.988 0.725 2759 0.1203 30 0.58

280 280 0.722 722 0.868 0.628 2834 0.1187 54 1.04

300 572 0.713 713 0.770 0.550 2906 0.1172 95 1.84

320 608 0.708 708 0.689 0.485 2981 0.1156 195.0 3.77

ROTH USA CODE ANALYSIS – 1AAK00055.000.001 PAGE B-1

JENSEN HUGHES

APPENDIX B: FUEL OIL 1-D DATASHEET

OILS, FUEL: 1-D OOD

CAUTIONARY RESPONSE INFORMATION

Common Synonyms Oily liquid Yellow-brown Lube or fuel oilodor

Floats on water.

Diesel oil (light)

Keep people away. Avoid contact with liquid.Shut off ignition sources and call fire department.Notify local health and pollution control agencies.Protect water intakes.

Fire Combustible.Extinguish with dry chemical, foam or carbon dioxide.Water may be ineffective on fire.Cool exposed containers with water.

Exposure CALL FOR MEDICAL AID.

LIQUIDIrritating to skin and eyes.Harmful if swallowed.Remove contaminated clothing and shoes.Flush affected areas with plenty of water.IF IN EYES, hold eyelids open and flush with plenty of water.IF SWALLOWED and victim is CONSCIOUS, have victim drink wateror milk.DO NOT INDUCE VOMITING.

WaterPollution

Dangerous to aquatic life in high concentrations.Fouling to shoreline.May be dangerous if it enters water intakes.Notify local health and wildlife officials.Notify operators of nearby water intakes.

1. CORRECTIVE RESPONSE ACTIONSStop dischargeContainCollection Systems: SkimChemical and Physical Treatment: Burn;AbsorbClean shore lineSalvage waterfowl

2. CHEMICAL DESIGNATIONS2.1 CG Compatibility Group: 33;

Miscellaneous Hydrocarbon Mixtures2.2 Formula: Not applicable2.3 IMO/UN Designation: 3.1/12702.4 DOT ID No.: 19932.5 CAS Registry No.: 68334-30-52.6 NAERG Guide No.: 1282.7 Standard Industrial Trade Classification:

33440

3. HEALTH HAZARDS3.1 Personal Protective Equipment: Protective gloves; goggles or face shield.3.2 Symptoms Following Exposure: INHALATION causes headache and slight giddiness. INGESTION

causes nausea, vomiting, and cramping; depression of central nervous system ranging from mildheadache to anesthesia, coma, and death; pulmonary irritation secondary to exhalation of solvent;signs of kidney and liver damage may be delayed. ASPIRATION causes severe lung irritation withcoughing, gagging, dyspnea, substernal distress, and rapidly developing pulmonary edema; later,signs of bronchopneumonia and pneumonitis; acute onset of central nervous system excitementfollowed by depression.

3.3 Treatment of Exposure: INGESTION: do NOT induce vomiting; seek medical attention. ASPIRATION:enforce bed rest; administer oxygen. EYES: wash with copious quantity of water. SKIN: removesolvent by wiping and wash with soap and water.

3.4 TLV-TWA: Notice of intended change: 100 mg/m3 (skin)3.5 TLV-STEL: Not listed.3.6 TLV-Ceiling: Not listed.3.7 Toxicity by Ingestion: Grade 1; LD50 = 5-15 g/kg3.8 Toxicity by Inhalation: Currently not available.3.9 Chronic Toxicity: Currently not available3.10 Vapor (Gas) Irritant Characteristics: Slight smarting of eyes or respiratory system if present in high

concentrations. The effect is temporary.3.11 Liquid or Solid Characteristics: Minimum hazard. If spilled on clothing and allowed to remain, may

cause smarting and reddening of skin.3.12 Odor Threshold: 0.7 ppm3.13 IDLH Value: Not listed.3.14 OSHA PEL-TWA: Not listed.3.15 OSHA PEL-STEL: Not listed.3.16 OSHA PEL-Ceiling: Not listed.3.17 EPA AEGL: Not listed

4. FIRE HAZARDS

4.1 Flash Point: 100°F C.C.4.2 Flammable Limits in Air: 1.3%-6%4.3 Fire Extinguishing Agents: Dry

chemical, foam, or carbon dioxide4.4 Fire Extinguishing Agents Not to Be

Used: Water may be ineffective.4.5 Special Hazards of Combustion

Products: Not pertinent4.6 Behavior in Fire: Not pertinent4.7 Auto Ignition Temperature: 350–625°F4.8 Electrical Hazards: Not pertinent4.9 Burning Rate: 4 mm/min.4.10 Adiabatic Flame Temperature: Currently

not available4.11 Stoichometric Air to Fuel Ratio: Not

pertinent.4.12 Flame Temperature: Currently not

available4.13 Combustion Molar Ratio (Reactant to

Product): Not pertinent.4.14 Minimum Oxygen Concentration for

Combustion (MOCC): Not listed

5. CHEMICAL REACTIVITY

5.1 Reactivity with Water: No reaction5.2 Reactivity with Common Materials: No

reaction5.3 Stability During Transport: Stable5.4 Neutralizing Agents for Acids and

Caustics: Not pertinent5.5 Polymerization: Not pertinent5.6 Inhibitor of Polymerization: Not pertinent

6. WATER POLLUTION

6.1 Aquatic Toxicity:204 mg/1/24 hr/juvenile American

shad/TLm/salt water6.2 Waterfowl Toxicity: 20 mg/kg LD50

(mallard)6.3 Biological Oxygen Demand (BOD):

Currently not available6.4 Food Chain Concentration Potential:

None6.5 GESAMP Hazard Profile: Not listed

7. SHIPPING INFORMATION

7.1 Grades of Purity: Diesel fuel 1-D (ASTM)7.2 Storage Temperature: Ambient7.3 Inert Atmosphere: No requirement7.4 Venting: Open (flame arrester)7.5 IMO Pollution Category: Currently not available7.6 Ship Type: Currently not available7.7 Barge Hull Type: Currently not available

8. HAZARD CLASSIFICATIONS8.1 49 CFR Category: Combustible liquid8.2 49 CFR Class: Not pertinent8.3 49 CFR Package Group: Not listed.8.4 Marine Pollutant: No8.5 NFPA Hazard Classification:

Category ClassificationHealth Hazard (Blue).......... 0Flammability (Red)............. 2Instability (Yellow)............. 0

8.6 EPA Reportable Quantity: Not listed.8.7 EPA Pollution Category: Not listed.8.8 RCRA Waste Number: Not listed8.9 EPA FWPCA List: Not listed

9. PHYSICAL & CHEMICALPROPERTIES

9.1 Physical State at 15° C and 1 atm: Liquid9.2 Molecular Weight: Not pertinent9.3 Boiling Point at 1 atm: 380–560°F =

193–293°C = 466–566°K9.4 Freezing Point: –30°F = –34°C = 240°K9.5 Critical Temperature: Not pertinent9.6 Critical Pressure: Not pertinent9.7 Specific Gravity: 0.81–0.85 at 15°C (liquid)9.8 Liquid Surface Tension: 23–32 dynes/cm =

0.023–0.032 N/m at 20°C9.9 Liquid Water Interfacial Tension: 47–49

dynes/cm = 0.047–0.049 N/m at 20°C9.10 Vapor (Gas) Specific Gravity: Not pertinent9.11 Ratio of Specific Heats of Vapor (Gas):

Not pertinent9.12 Latent Heat of Vaporization: 110 Btu/lb =

60 cal/g = 2.5 X 105 J/kg9.13 Heat of Combustion: –18,540 Btu/lb =

–10,300 cal/g = –431.24 X 105 J/kg9.14 Heat of Decomposition: Not pertinent9.15 Heat of Solution: Not pertinent9.16 Heat of Polymerization: Not pertinent9.17 Heat of Fusion: Currently not available9.18 Limiting Value: Currently not available9.19 Reid Vapor Pressure: Currently not

available

NOTES

JUNE 1999

OILS, FUEL: 1-D OOD

9.20SATURATED LIQUID DENSITY

Temperature(degrees F)

Pounds per cubic foot

3436384042444648505254565860626466687072747678808284

51.43051.36051.29051.22051.15051.08051.01050.94050.87050.80050.74050.67050.60050.53050.46050.39050.32050.25050.18050.11050.04049.97049.90049.83049.76049.690

9.21LIQUID HEAT CAPACITY


British thermal unit perpound-F

707580859095

100105110115120125130135140145150155160165170175180185190195

0.4690.4710.4740.4760.4790.4810.4840.4860.4890.4910.4940.4960.4990.5010.5040.5060.5090.5110.5140.5160.5190.5210.5240.5260.5290.531

9.22LIQUID THERMAL CONDUCTIVITY


British thermal unit inchper hour-square foot-F

5060708090

100110120130140150160170180190200

0.9640.9640.9640.9640.9640.9640.9640.9640.9640.9640.9640.9640.9640.9640.9640.964

9.23LIQUID VISCOSITY


Centipoise

-30-25-20-15-10

-505

1015202530354045505560657075

6.0655.4824.9654.5084.1013.7393.4163.1272.8672.6342.4242.2352.0641.9091.7681.6411.5251.4191.3221.2331.1521.078

9.24SOLUBILITY IN WATER


Pounds per 100 poundsof water

INSOLUBLE

9.25SATURATED VAPOR PRESSURE


Pounds per square inch

708090

100110120130140150160170180190200210220230240250260270280290300

0.0410.0560.0750.0990.1300.1680.2170.2770.3500.4400.5480.6790.8351.0211.2411.5001.8022.1542.5623.0333.5734.1924.8965.695

9.26SATURATED VAPOR DENSITY



NOT

PERTINENT

9.27IDEAL GAS HEAT CAPACITY



NOT

PERTINENT

JUNE 1999

ROTH USA CODE ANALYSIS – 1AAK00055.000.001 PAGE C-1

JENSEN HUGHES

APPENDIX C: ROTH DWT INSTALLATION MANUAL

EcoDWT plus 3

Installation InstructionsFor Lubricating and Hydraulic Oil Storage and Dispensing

Listed under UL Standard SU2258

Meets the requirements of ANSI/NFPA 31ANSI/NFPA 30

NFPA 30aCSA B-139-04

Roth IndustriesPO Box 245

Syracuse, New York 13211Toll Free: 888-266-7684

Fax: 315-475-0200Email: [email protected]

www.rothlubetanks.com

Roth DWT Installation Manual 2 Lubricating & Hydraulic Oil Storage and Dispensing9-2017

Table of ContentsSection 1 - The Roth Industries EcoDWT plus 3 Double Wall Tank

Construction Models and Specifications Third Party Testing and Approvals Installation Training Warranty Terms and Product Registration

Section 2 - Installation Parts And Accessories

Parts Supplied with Tank Dispensing System Installation Accessories

Section 3 - Pre-Installation

Permits and ApprovalsWarnings and Cautions Tank Unpacking and Inspection

Section 4 - General Installation Instructions

Site Selection Locating the TankTank Base Installation Flood and Earthquake Considerations Tie Down Kit Piping ConnectionsNormal and Emergency VentingTesting and Inspection

Section 5a - Hose Reel Bracket and Hose Reel Instalation

2” Metal AdaptorHose Reel Bracket Assembly Hose Reel

Section 5b - Pump Bracket and Hose Reel Instalation

2” Metal AdaptorPump Bracket Assembly Threaded Pump Bracket Flanged Pump Bracket

Section 6 - Completed Installation Review and Warranty Documentation

Section 7 - Yearly Maintenance and TroubleshootingYearly MaintenanceTroubleshooting

Fill Chart

Page 3

Page 3Page 4Page 5Page 5Page 6

Page 7

Page 7Page 8

Page 9

Page 9Page 9Page 10 Page 11

Page 11Page 12Page 12Page 13Page 13Page 14Page 15Page 16

Page 17

Page 17Page 17Page 20

Page 21

Page 21Page 21Page 24Page 25

Page 26

Page 27

Page 30


Section 1 - The Roth Industries EcoDWT plus 3 Double Wall Tank

Construction

1. The Roth EcoDWT plus 3 storage tank is a double wall tank (DWT) providing both primary and secondary containment tanks for #2 fuel oil, diesel fuel, bio-fuels up to B20, and both new and used automotive motor oils. It is engineered to be the finest fuel storage tank available for residential and light commercial use and one that will provide decades of trouble free service.

2. As the name indicates, it is the ecologically sound choice for fuel oil storage, additionally providing three distinct advantages ( the “plus 3”) over common single wall tanks: superior fire protection over most single wall tanks by keeping the oil cooler and therefore less stress on the tank seams, as shown in UL fire tests; the combination of a steel tank encasing a plastic tank protects the fuel oil products, particularly bio-fuels, with the best light and diffusion barrier; when properly secured in place, the double wall tank provides excellent safe fuel oil storage in flood prone locations, a record established in over forty years of use.

3. The primary containment tank is made of high density polyethylene resin and is formed by a rigorously controlled blow molding process. Polyethylene is a material that combines flexibility with very high resistance to the corrosive effects of both acids and water. Acids are found in all fuel oil products and are, in combination with water, the primary cause of steel tank failure. Water is commonly found in fuel oil storage tanks from water vapor, introduced by the vent piping primarily during the emptying of the tank, condensing inside the tank as the air cools when in contact with the cooler oil. The use of polyethylene, with its high resistance to corrosion, essentially eliminates the foremost reason for failure.


4. The secondary containment tank is made with 19 gauge galvanized steel. The use of steel offers strength to resist damage to the inner tank from impacts by other objects, rigidity to support the flexible inner tank, and the ability for electrical grounding of the tank where required by local code. The outer tank sides and bottom are formed from one sheet of steel, which is then shaped to receive the panels used at each end of the tank. The seams are caulked and then rolled in a three step robotic procedure, producing a strong, fluid tight and weld-free joint.

5. Each inner and outer tank is tested for defects and liquid tightness. The inner tank is pressure tested to 4.35psi. It is also weighed to make sure it contains the correct amount of material, and finally measured ultrasonically at critical points to verify that it has the required wall thickness. Each sheet of steel for the outer tank is inspected for damage or blemishes that could compromise the galvanized coating. Once the outer tank is assembled, it is pressure tested to .25 - .30psi to ensure the integrity of its seams. The inner tank is then placed inside the outer tank, gaskets placed around the four openings of the inner tank, and the outer tank top installed, riveted into place, and its edge rolled. The leak detector, #3 gaskets, plastic and die-cast metal adaptors, cap nuts and dust plugs are then installed, labels affixed, the warranty packet and tank base placed on top of the tank, and finally a protective plastic shrink wrap is put over the top of the completed tank.

6. The completed tank has four connections at the top and, unlike a standard steel tank and most other poly tanks, none elsewhere. By eliminating a connection below the oil level in the tank, a potential source of leakage is eliminated. The four connections can be used interchangeably, providing the installer with greater flexibility in accommodating difficult or unusual piping installations.

Models and Specifications

Tank Model DWT 400L DWT 620L DWT 1000L DWT 1000LH DWT 1500L

Nom. Capacity US gal (liters) 110 (400) 165 (620) 275 (1000) 275 (1000) 400 (1500)

Length inches (cm) 29 (74) 29 (74) 43 (110) 51 (130) 64 (163)

Width inches (cm) 28 (72) 28 (72) 28 (72) 30 (76) 30 (76)

Height inches (cm) 44 (112) 61 (155) 61 (155) 54 (137) 68 (173)

Min. Height Req’d inches (cm) 49 (125) 66 (168) 66 (168) 60 (152) 76 (193)

Weight lbs (kg) 106 (48) 132 (60) 167 (76) 208 (94) 333 (151)

Shipping Weight lbs (kg) 115 (52) 143 (65) 185 (84) 230 (104) 358 (162)


Approximate Footprint for Multiple DWT Installations


2 Tanks Side by Side inches (cm)

29 X 60(74 X 152)

29 X 60(74 X 152)

43 x 60(110 x 152)

51 x 63(130 x 160)

64 x 63(163 x 160)


29 X 92(74 X 234)

29 X 92(74 X 234)

43 x 92(110 x 234)

51 x 96(130 x 244)

64 x 96(163 x 244)


29 X 124(74 X 315)

29 X 124(74 X 315)

43 x 124(110 x 315)

51 x 129(130 x 328) N/A


29 X 156(74 X 397)

29 X 156(74 X 397)

43 x 156(110 x 397)

51 x 162(130 x 411) N/A

2 Tanks End to End inches (cm) N/A N/A 28 x 90

(72 x 229) N/A N/A

Third Party Testing and Approvals

1. The primary U.S. code governing fuel oil tank manufacturing and installation is the National Fire Protection Association (NFPA) code, Section 31.

2. The corresponding Canadian code is CSA B-139-09.

3. The primary US Codes governing lube oil storage and dispensing are National Fire Protection Association (NFPA) Section 30 & 30A.

4. The Roth EcoDWT plus 3 has been tested by both the U.S. and Canadian divisions of the Underwriters Laboratories (UL). As a result of passing stringent fire and safety tests, the Roth EcoDWT plus 3 is listed under UL standard SU2258 and each tank bears the UL mark - c UL us.

5. The scope of UL standard SU 2258 extends to tanks intended for installation and use in accordance with ANSI/NFPA 30, the Flammable and Combustible Liquids Code and ANSI/NFPA 30A, the Code for Fuel Dispensing Facilities and Repair Garages.

Installation Training

1. To ensure the highest level of operation and customer satisfaction, Roth Industries encourages each installer to receive training in the proper installation of a Roth tank.

2. This training is offered through the network of manufacturer’s representatives that Roth maintains, allowing installers to receive training in their immediate area.

3. Training materials are also available on the Roth Industries website:

www.roth-america.com


Warranty Terms and Product Registration

1. Under the terms of the warranty, Roth Industries warrants the Product against leakages caused by defects in materials and workmanship for a period of thirty (30) years from the “Start Date”.

2. During the first ten (10) years of the warranty period, Roth shall (i) at its discretion, either repair the Product or provide a replacement product of similar size, design and quality, and (ii) pay all labor costs associated with such repair and/or replacement, all of which shall be at Roth’s expense up to a maximum of one thousand ($1,000) USD in each case. Purchaser shall be responsible for payment of the costs of shipping, freight and insurance on any replacement product, all of which shall be at Purchaser’s expense.

3. In addition, during this first ten (10) year period ONLY, in the event that all conditions contained in the Limited Warranty are otherwise satisfied, Roth shall also reimburse purchaser, up to a maximum amount of US $2 million, for the costs and expenses incurred by Purchaser for damage to purchaser’s property directly and proximately caused by a leakage of oil from a defective Product.

4. During years eleven (11) through year thirty (30) of the warranty period, Roth shall, at its discretion, either repair the Product or provide a replacement product (or 100% credit towards the purchase price of a replacement product) of similar size, design and quality. Purchaser shall be responsible for payment of all labor costs associated with such repair and/or replacement, as well as the costs of shipping, freight and insurance on any replacement product, all of which shall be at Purchaser’s expense.

5. The warranty period (“Start Date”) begins at the date of installation of the Product as recorded on the warranty card and submitted to Roth after installation. If the warranty card is not submitted, the warranty period (“Start Date”) begins at the date of manufacture of the Product. THIS LIMITED WARRANTY SHALL BE VOID IF THE PRODUCT IS NOT INSTALLED WITHIN TWELVE (12) MONTHS AFTER THE DATE OF SALE BY THE PURCHASER (DISTRIBUTOR) TO THE INSTALLER.

6. Though statements above are a part of the warranty statement, they do not reflect all warranty conditions. Please read the limited warranty certificate to be informed of all conditions and rights.


Section 2 - Installation Parts and Accessories

Parts Supplied with Tank

Quantity Part # Description

4 - Threaded Dust Plug

4 2350000024 Plastic Cap Nut

4 2350006801 2” NPT Die-Cast Metal Adaptor

4 2350000031 #3 Gasket

4 2350005738 Bulkhead Nuts

1 Various Leak Detector

1 -Installation Packet including Warranty Certificate Forms (2), Parts Check List & Installation Instructions

1 Various Tank Base

Threaded Dust Plug (4)(Discard when ready to begin installation)

#3 Gasket (4)

2” NPT Metal Adaptor (4)


Dispensing System Installation Accessories

Non-Roth components used in this image and subsequent images do not indicate a sole source agreement between Roth Industries, Inc. and any other manufacturer. Components used are typical but may be substituted with other compatible components. Contact Roth Industries Technical Department for compatibility requirements.

Hose Reel Bracket w/ Hardware

Pre-fabricated steel bracket designed to fit atop the Roth EcoDWT Plus 3 tanks. Hardware contains bolts, nuts and washers to fasten bracket to tank and to fasten hose reel to bracket.

The bracket can be modified to accept hose reels from different manufacturers. Additional hardware may be required. Contact the Roth Industries technical department to discuss these requirements.

Tie Down Kits

Used to keep tank and accessories from shifting or tipping over during use. See instructions on page 14 for complete details.

2” Metal NPT Adaptors

Four (4) metal 2” Female NPT adapters are furnished with the tank

Tank Size Hose Reel Bracketw/ Hardware Tie Down Kit

110 Gal 2315000201 - 26” (1) 2335000222

165 Gal 2315000201 - 26” (1) 2335100222275 Gal 2315000201 - 26” (1) 2335100222

275 Gal LP 2315000202 - 28” (2) 2335200222400 Gal 2315000202 - 28” (2) 2335400222



It is very important to read and familiarize yourself with these instructions before installing the tank(s). There are a number of steps that are crucial to a successful installation and to maintaining the warranty.

Permits and Approvals

Installing a single Roth EcoDWT plus 3 inside a building is a straightforward process. Nearly all municipalities have codes governing the installation and use of oil tanks. Always consult with the code officers and inspectors before installing a Roth EcoDWT plus 3 to be sure you are in compliance with all applicable local codes and have obtained all required permits. Code officers may be unfamiliar with the Roth double wall tank, so time taken in acquainting the officer(s) with the tank’s unique advantages and certifications will usually make final approval much easier.

Warnings and Cautions

To the Wholesaler:

1. Fully inspect the tank for shipping damage. The tanks are inspected for damage before shipment from the manufacturing facility and must be inspected for shipping damage upon delivery. If damage is found, the shipping company, not Roth Industries, must be notified.

2. Do not remove shrink wrap covering unless it will be replaced with similar material.

3. Do not store tanks outside without shrink wrap covering to prevent water seepage into the interstitial space between the two tanks and to prevent the destruction or loss of the supplied warranty materials.

4. Tanks should not be stored outside or uncovered for more than thirty (30) days to prevent UV degradation of plastic materials

5. Confirm that the warranty package is with the tank. It is located on top of the tank under the shrink wrap and easily visible. If it is missing contact Roth for a replacement package.

To the Installer:1. Do not remove the shrink wrap until the tank has either been moved inside or is ready to

have the cover placed on it if an outside installation.

2. Do not walk on tank tops during installation! Associated damage voids the warranty.

3. Failure to follow the instructions given in this installation manual may:

a. Void the tank warranty. b. Compromise the structural integrity of the tank, requiring its replacement. c. Result in personal injury and/or property damage. d. Make the installer liable to penalties under applicable state and local law.


4. Do not install without obtaining appropriate permits and approvals.

5. Always install the Roth tank according to applicable building and health codes for oil storage systems.

6. Do not install equipment greater than 10 lbs. (4.5 kg.) directly on the tank connections without external support

Tank Unpacking and Inspection

1. The top and upper portions of the Roth EcoDWT plus 3 are covered with shrink wrap plastic designed to keep the top of the tank weathertight. The shrink wrap must be left in place until the tank has been moved inside or is ready to have the cover placed on it if an outside installation. It is transparent, so the tank top and connections can be examined for damage. The base for each tank is shipped on top of the tank to protect the fittings during shipping.

2. The tanks are inspected for damage before shipment from the manufacturing facility and must be inspected for shipping damage upon delivery. If damage is found, the wholesaler or shipper, not Roth Industries, must be notified.

3. In the course of shipping and handling after the tanks leave the Roth warehouse, some minor denting and scraping of the tanks may occur. Minor scratches and scrapes on the surface of the galvanized steel outer tank can be easily repaired by cleaning the surface with any common degreaser and then coating the affected area with any zinc bearing paint designed for such repairs. Most hardware and building supply stores will carry one or more brands of galvanizing repair products.

4. Dents of a ¼ inch depth or less above the curved portions of the sides or in the end panels are generally considered minor and will not affect the integrity of the tank. If the deepest part of the dent forms a sharp projection against the inner tank, or if the dent is on or below the curved sides, this can abrade the surface of the inner tank over time and weaken it. A tank damaged in this way should not be used.

5. If the rolled seam has been struck and is distorted to the left or right ¼ inch or less, the sealing compound will still be intact. Any seam distorted more than ¼ inch or directly dented in will have the sealing compound compromised and should not be used. Any tank installed with unacceptable dents will not be covered by the warranty.

Contact the Roth Industries Technical Department if you have any questions concerning dents or scraping on the units. Typically, you will be asked to send pictures of the tank.


Section 4 - General Installation InstructionsSite Selection

The Roth EcoDWT plus 3 must be installed indoors for this application.

The following standards must be met:

(Always check local building and fire codes for specific requirements in your location.)

1. Level surface - The Roth EcoDWT plus 3 is an upright tank having a higher center of gravity than a standard single wall tank. This design allows a smaller footprint than a typical single wall tank. The result is also a taller tank profile, requiring the tank to be installed so that it is plumb to within a ½ inch of vertical, as checked on both an end and a side. If the tank is not plumb the proper alignment of piping connections will prove difficult, especially with the use of expansion kits for multiple tank setups. The accuracy of the fuel gauge and the correct operation of the vent whistle will also be affected. If the tank is more than ½ inch out of plumb, the surface must be leveled with an appropriate leveling compound or the product warranty is void.

2. Weight bearing capacity - Since #2 fuel oil weighs 7.2 lbs/gallon, a model 1000L (275 gal.) tank will hold approximately 1730 lbs when full, which brings the total weight of the tank to about 1900 lbs or just short of a ton. Since the model 1000L has a footprint of 8.3 ft2, this means the load bearing surface is carrying about 227 lbs/ft2. NFPA 31-7.3 and CSA B-139-09: 7.3.8 have specific requirements for oil tank foundations that must be followed. The base for the Roth DWT requires full contact support under each of the tubular legs to produce a properly stable installation. Use of masonry blocks such as pavers, sidewalk blocks, and cement wall blocks will not provide sufficient support and will void the warranty.

3. Minimum clearance - A minimum of 2 inches of clearance is needed between the Roth EcoDWT plus 3 and any wall, post, or other permanently installed structural member, support, or barrier. When the tank is filled with oil, its sides could expand horizontally as much as 2 inches, so the clearance is required to prevent contact between, and undue pressure being applied to, either the tank side or the structure next to it. This distance also allows for inspection of the tank sides. CSA B139-09: 7.3.5 states that a minimum clearance of 460 mm (18 in) be made along one side and one end for service accessability. The tank dimensional tables give the minimum height needed for installation, but it is recommended that there be a minimum clearance over a tank of 2 feet to permit removal and reinstallation of the single use leak detector, if necessary.

4. Proper drainage - Although the Roth EcoDWT plus 3 outer tank and base are made from galvanized steel with a minimum expected life span of 30 years with normal use, prolonged exposure to water and water-borne salts and/or acids can significantly reduce that life span. It is very important that the tank installation site has good drainage, and that the surface the tank rests on is dry for the majority of the time. Any water from wash areas or water softener units must be directed away from where the tank is located.


5. Locating the Tank

1. Make sure the tank will fit through all doors, stairs, halls, and turns taken to reach its intended placement. The tank cannot be dismantled or otherwise altered to make it fit through smaller spaces and any attempt to do so will destroy its structural integrity as well as void the warranty.

2. Examine the desired tank location for deficiencies in the load bearing surface, such as irregularities, slope, and dampness. If a level pad will be poured on the existing floor, it should extend 6 inches past all exposed sides of the tank.

3. The tank must not be installed closer than 5 feet to the heating appliance (NFPA 31 – 7.5.6) and cannot obstruct access to other utilities’ panels, meters, or control valves.

4. Because the connection points of the inner polyethylene tank project above the outer tank top, the DWT must not be installed near a window that will allow exposure to sunlight (UV radiation) on these connections. Although the polyethylene does have limited UV inhibitors in it, prolonged exposure to sunlight can start breaking down the exposed plastic. The same precaution applies to the clear plastic cover on the leak detector.

5. After the site is prepared, remove shrink wrap and other packing materials and thoroughly inspect the tank and accessories for any hidden damage or missing parts. If damaged, contact the wholesaler the tank was purchased from for resolution.

6. Once the inspection is complete, the installation can begin. Each tank has 4 connection ports on the top. These can be used interchangeably during installation for the various tank fittings, providing maximum flexibility for the planned connections.

The certification label on the tank should be visible after installation.

Tank Base Installation

1. The Roth EcoDWT plus 3 uses a one piece base assembly, known as a cradle base, for support. This base is shipped on top of the tank to provide protection for the fitting connections and is held in place by the shrink wrap plastic.

2. The base consists of two or more steel tubular “legs” running horizontally the full width of the tank with the cradle assembly attached to them. The design of the base requires the legs to be in contact with the floor for their entire length, or distortion and possible failure of the base can occur.

3. Once the site is ready for the tank to be set in place, simply set the base on the floor in the approximate location the tank will be installed and place the tank on the base. There is no need to connect the base to the tank, as it is designed to lock in place when the tank is filled with oil. Once the tank is on the base, the unit can be easily slid to its permanent location, allowing for proper clearances.


Failure to use the base may result in tank failure and will void the warranty.

Flood and Earthquake Considerations

1. Always consult local codes and regulations regarding above ground oil storage tank installations in earthquake or flood prone areas. For seismic rated anchoring requirements contact the Roth Technical Department

2. In areas where a threat of flooding or high winds exists, or in basements with a history of flooding, use of the Roth tie-down kits is recommended.

Tie Down Kit

Tie Down Kits are highly recommended when hose/pump reel brackets are used to mount equipment on the tank top!

1. Tie down kits are used as an aid to keep the tanks from shifting, tipping over or floating off the base.

2. The kit includes two tie downs, one for each side of the tank. Each tie down consists of long and short support rods with hooks on each end, turnbuckle and pre-drilled angle bracket.

3. Place long support rods onto the top rim of the tank. Hook the turnbuckle onto the long and short support rods. Hook the angle bracket onto the short support rod. Adjust the turnbuckle until the angle bracket touches the concrete and mark the fastening holes.

4. Anchor angle brackets to cement with field supplied fasteners. Loosen turnbuckle until short support rod can be hooked onto angle bracket. Tighten turnbuckle on each side evenly in an alternating pattern. Kits should be tight without deforming tank rim or sides of tank. Do not overtighten.

Front, Rear View Side ViewFig 3.1 Fig 3.2


5. Be sure tank remains level during and after tightening the tie down kits.

6. Tie down kits may not be effective if the tank is less than half full and a flooding event occurs. In areas with a risk of flooding, please contact Roth Industries Technical Department to determine best method for securing tank.

7. Use one kit for 400L, 620L, &1000L tanks Use two kits for 1000LH & 1500L tanks.

8. Additional kits maybe used to increase stability or where conditions or code require it.

9. The decision to use Roth Tank Tie Down Kits or other means of securing tanks against turnover rests with the tank installer/lube system designer. Roth Industries assumes no responsibility for tank, equipment, facility, environmental damage or injury from overturned tanks.

Piping Connections

1. All connections to the Roth EcoDWT plus 3 use a flat rubber #3 gasket to seal against the tank opening and to ensure the connection is odor free. The various fittings are secured to the tank with a large black plastic cap nut. Once installed, 18 ft-lb of torque applied to the cap nut seals the connection; hand tightening is the acceptable equivalent of this. The connections to the tank are designed to seal against atmospheric pressure only and not the higher fluid or pumping pressures. It can not be considered an oil tight connection. In the event the tank is overfilled, the connection may allow oil to seep onto the top of the tank.

2. Do not use pipe sealants or PTFE tape on any threaded plastic connections, as these products can cause the plastic to degrade. These sealants can be used on metal to metal connections.

Tie Down Kit Tie Down Kit

Caution: Tank restraints must not affect the containment properties of the tank. Penetrating fasteners are only allowed on the tank flange above the tank top.


Normal and Emergency Venting

All atmospheric storage vessels require venting to prevent:

• Tank pressure accumulation while filling with liquid• Tank vacuum accumulation while emptying tank

Normal Venting

Normal vents function to allow the tank interior pressure to remain at or very near atmospheric during filling and emptying operations. Codes and ordinances may allow simple open vents for meeting this requirement. This requirement can be met with a 2 in. pipe nipple and a screened vent cap.

In some locations, normally closed or pressure-vacuum vents may be required. This type of vent includes two valve assemblies, one designed to relieve accumulated pressure, another to relieve accumulated vacuum. When the tank is not being filled or emptied, both valves are closed retaining any vapor associated with the stored liquid. This type of vent also allows the tank to “breathe” with changes in ambient temperature resulting in small internal pressure changes.

Normal vents should be sized with consideration for maximum fill and emptying rates. In most cases, using vent sized to mount directly on the 2 in NPT adapter will meet these requirements.

Example of an “open” normal vent

Example of a normally closed pressure vacuum vent, image courtesy of Morrison Bros. Co.


Emergency Venting

Emergency venting allows the expanding interior atmosphere of the tank to escape in the event that the tank is exposed to external fire. Emergency vents are designed to open at a pressure slightly above the opening pressure of normal vents.

The Roth DWT can be equipped with emergency vents for the primary tank. Sizing of emergency vents is a function of the calculating the wetted surface area of the tank and associated vent flow capacity requirements per NFPA 30. Please contact Roth Industries Technical Department for assistance in sizing emergency vent equipment.

Interstitial emergency venting

Codes and ordinances may require emergency venting be applied to the interstitial volume (space between the inner tank and the outer tank) in tanks with double wall construction. The Roth DWT is constructed as a closed diked double wall tank with a non-sealed interstitial, not designed for or capable of retaining pressure. Therefore, there is no requirement or facility to install an emergency vent on the interstitial.

Testing and Inspection

1. As mentioned in Section 1, the inner and outer tanks of the Roth EcoDWT plus 3 are pressure tested at the factory to UL specifications (4.35 psi inner and 0.25 - 0.3 psi outer). Further pressure testing is not necessary and can result in damage to the tanks if attempted.

2. If pressure testing of the piping is required by local codes, all affected piping should be disconnected from the tank and one end sealed prior to performing testing. Pressurization of the piping should be no more than 0.5 psi (3.5 kPa) using a leak detection solution on the fittings

3. A hydrostatic test consisting of a thorough inspection of all connections during the first filling should be conducted.

4. Leaks found during these tests are generally from misaligned piping and loose fittings, or, on rare occasions, from defective fittings. Once the problem has been identified and corrected, review all aspects of the installation.

Example of an emergency vent, image courtesy of Morrison Bros. Co.


2” Metal Adaptors

1. Remove dust plugs and discard.

2. When attaching fittings/equipment to the 2” metal adaptors, loosen large plastic cap nut to prevent cracking. When securing adaptors to tank with cap nuts. Hand tighten only. Do not exceed 18 ft. lbs. of torque.

Hose Reel Bracket Assembly

Bracket and Installation Hardware Kit

Hardware Kit (exploded view)

The following images and descriptions are meant to provide a general reference for mounting fittings and required accessories to the Roth DWT Tank and Reel Bracket. Specific installation sites may require the use of different accessories or accessories to be mounted in different positions on the top of the tank which in no way adversely affects the function of the tank.

Section 5a - Hose Reel Bracket and Hose Reel Installation

PPT - 21


1. Place bracket on top of tank and center over tank openings.

2. Insert bolt through pre-drilled hole in bracket leg.

3. Slide mounting clipover bolt with the curved edges facing the tank and bracket.

4. Place elastic stop nut on bolt


5. Secure clip with elastic stop nut and tighten.

6. Be sure clip is seated firmly on both tank and bracket

7. Complete installation with remaining clips and fasteners.


Finished Assembly

Hose Reel

1. Bracket has two sets of pre-drilled holes for installation on right or left side.

2. Place Hose reel assembly on bracket and align with pre-drilled holes/slots.

3. Fasten assembly to bracket with 1/4” - 20 x 1” hex head bolt (4) and 1/4” - 20 elastic stop nut (4).


Section 5b - Pump Bracket InstallationPump mounting brackets are available in two configurations: • Flanged brackets which accommodate Graco Mini-Fireball® 225, Fireball® 300 & 425 flange mounted pumps. • Threaded brackets which accommodate all pneumatic piston pumps with a 2 in bung adapter mounting capability.

NOTICE: DWT Tank Warranty PolicyDue to the unit weights and forces generated by pneumatic piston pumps, moving forward, all Roth DWT tanks installed with tank mounted pneumatic piston pumps will require the use of a pump bracket to maintain the DWT product warranty.

2” Metal Adaptors



Pump Bracket Assembly - Top of Tank



The Roth Pump Bracket is packaged in a corrugated box with (4) mounting clips, (4) bolts and stop nuts (fig 1). Inspect package upon receipt for any damage or missing components and contact shipper with any damage claims.


1. Tools required: 7/16” end or socket wrenches

2. Remove dust cap from the 2” FPT adapter

supplied with the tank

3. Install pump bung adapter (by pump manufacturer) in the 2 inch metallic FPT adapter

4. Place bracket over the tank opening selected for installation of the pump. Be sure that the bracket legs engage the inside edges of the tank top lip and that the bracket openings are aligned with the connections on the tank


5. Insert the threaded fastener through the bracket leg from the inside.

6. Install the mounting clip over the fastener with clip engaged with tank lip and start the nut

7. Mounting clip fasteners can be partially but not fully tightened at this point, this will allow for centering of the pump in the tank opening.


1. Install second pump bung adapter (by pump manufacturer) in threaded boss in bracket

2. Insert the pump dip tube/stub through both of the bung adapters and tighten bung adapters Insert the pump dip tube/stub through both of the bung adapters and tighten bung adapters

Pump Bracket Assembly - Threaded Pump on Bracket


Pump Bracket Assembly - Flanged Pump on Bracket

1. Insert the pump dip tube/stub through the opening in the bracket and through the bung adapter installed in the tank NPT adapter below.

2. Align flange mounting holes in the pump with the matching hole pattern in the bracket. Use mounting bolts and nuts supplied to secure the pump to the bracket.

Once pump is securely mounted, finish tightening the four bracket mounting clips to 10-15 ft/lbs. DO NOT OVER-TIGHTEN!



1. Once the Roth EcoDWT plus 3 installation is complete, the installer shall review all the work done to verify it is in compliance with the instructions received in training and in this manual, as well as in compliance with applicable local code requirements.

2. Once the review is finished and all requirements are met, the two warranty certificates included with each tank must be completely filled in. One will be returned to Roth Industries at the address found on the certificate and the other will be given to the tank owner for his/her records.

3. Accurate completion of the certificates is extremely important, since this is the only proof that the installation met all warranty requirements.

4. The serial number and date of manufacture are printed on the silver label affixed to each certificate. The date of installation, the name of the tank owner, complete address of the installation, and the installer and/or installation company all need to be provided for the certificate to be valid.

5. Some state, provincial, or local authorities may also require that the installation checklist included in this manual be filled out and submitted as part of the warranty registration process. On both documents the installer’s signature (either individual or company name) is verification that the installation conforms to all Roth instructions and meets the requirements of all applicable codes.

6. Once the completed certificate and installation checklist (if required) are received by Roth, the information is then entered in the database for internal recording keeping and company use only. Roth does not send out notification that the warranty certificate has been received, but owners can call to verify that certificate has been received. This information is for warranty purposes only and will not be shared with any other company for reasons other than warranty maintenance.

7. The warranty is valid on the Roth EcoDWT plus 3 where it is originally installed and therefore remains in effect if ownership of the property is transferred. Any questions concerning the installation or the warranty can be addressed by calling Roth Industries at the telephone numbers listed on the front cover of this manual.

8. The first time the tank is filled, an observer, preferably the installer, should be present to determine that there are no problems that need to be addressed. It is much easier to remedy these problems before the tank is full.


Section 7 - Yearly Maintenance and Troubleshooting

Yearly maintenance

1. Inspect the site (floor or pad) for any shifting, cracking or unevenness. If any of these conditions exist the integrity of the tank and the installation may be compromised. Steps must be taken to provide a sturdy, level site for the tank.

2. Check that the tank is firmly and squarely set on the base.

3. Inspect all four sides of the tank, the base, and the top for any areas where the galvanized coating has broken down, allowing rust to start. If any spots like this are found, then lightly clean the area with steel wool or fine grit sandpaper, wipe clean, and then coat with any zinc bearing paint intended for galvanized metal.

4. Inspect all the seams in the tank, particularly the seam between the tank body and the top. If there has been excessive pressurization of the tank during filling, the rivets that hold the top in place can be seen pulling into or through the material behind them or in a lifting of the top’s rim to expose the tank body’s edge. If either condition is noted, contact Roth Industries to arrange an inspection of the tank.

5. Check the plastic cap nuts for tightness. They have been found to gradually loosen with the natural expansion and contraction of the tank during filling and emptying, as well as the expansion and contraction of the plastic nuts themselves from the temperature changes. If they are loose turn them until they are hand tight. This will be sufficient to seal the gasket with the appropriate pressure.

6. As pipe joints can loosen over time, inspect all pipe joints for evidence of leakage by fuel oil. If such evidence is found, then contact an oil service technician or plumber to come and retighten the joints.

7. Inspect fill and vent piping for plumbness and that the piping slopes back to tank. Check to see the support brackets are secure and are keeping the weight of the pipes off the tank.

8. Check the top of the tank for any stains that may have occurred from oil seeping onto the top of the tank. If there is oil present on top of the tank, then this must be cleaned up or it will gradually seep into the interstitial space between the two tanks. If the stains are old with no odor, cleanup is optional.

9. Oil stains or oil on top of the tank is usually a sign that the tank was overfilled at some point. The oil company should be notified about this leakage and to verify that the Vent Alarm is working correctly. If it is, then further investigation needs to be done to determine how the overfill occurred and to ensure it isn’t repeated.

By following these procedures, the Roth EcoDWT plus 3 will provide decades of reliable and trouble free oil storage. If in doubt, always call the Roth certified installer or use the numbers in this manual to reach Roth Industries.


Troubleshooting

1. The red band is showing in the leak detector.

a. Remove the leak detector from the tank by pulling up out of the sealing rubber bushing and observe the amount of fluid (oil or water) visible on the end of the detector tube.

b. If the amount of fluid on the tube is less than a few inches it is nearly always an indication that fluid has seeped into the interstitial from the top of the tank from overfilling the tank.

c. If the amount of fluid on the tube is close to or equal to the amount of oil in the inner tank then it is an indication of a possible leak in the inner tank and the installation needs a closer inspection. Call Roth Industries Inc. to arrange such an inspection.

d. Fluid can removed from the interstitial (space between the two tanks) with a hand pump or with a long rod that has an absorbent material attached to it if the amount is small. The cleanup can be finished by using oil absorbent powder, which will also remove most of the oil smell.

2. Oil smell near the tank

a. If there is the presence of oil of the top of the tank it is an indication of:

1. Leaky pipe joints. Contact an oil service technician or plumber.

2. Plastic cap nuts are loose. Hand tighten or mechanically tighten to 18 ft-lb of torque.

3. Overfill during filling. The oil company should be notified about this leakage and to verify that the Vent Alarm is working correctly.

b. If no oil is visible on the top of the tank then the following must be checked:

1. Plastic cap nuts nay be loose. Hand tighten or mechanically tighten to 18ft-lb of torque.

2. The fill and vent piping is not plumb causing unequal pressure on the o-ring resulting in an air gap on one side of the o-ring. Contact your oil service technician or plumber.

3. Compression fittings on the duplex bushing may be loose.

c. Check the leak detector and following instructions above if red band is showing.

3. Tank sides are bulging and creases have formed on the sides of the tank

a. The sides of the tank may expand up to two (2) inches per side when filled. This is a normal condition.

b. Tank sides bulging more than normal is an indication of one of the following:


Troubleshooting (cont’d)

1. Too high of a pumping rate during filling. The pumping rate should be 40 - 85 gpm ((150 LPM - 300 LPM) with a maximum line pressure of 85 psi.

2. Restriction in the vent piping. This can be caused by debris in the vent piping and/or vent cap or a problem with the vent whistle. Contact your oil service technician if the vent whistle is causing the problem.

3. The interstitial has water in it and the water has frozen at some point. Call Roth Industries Inc. to arrange an inspection.


Fuel Level Fuel Content Fuel Content Fuel Content Fuel Content Fuel Contentin. mm US gal Liters % Full US gal Liters % Full US gal Liters % Full US gal Liters % Full US gal Liters % Full1 25.42 50.8 5 20 2% 11 40 2%3 76.2 5 19 4% 5 19 3% 9 34 3% 11 40 4% 17 614 101.6 9 34 8% 9 34 5% 15 57 5% 16 60 6% 22 82 5%5 127.0 10 38 9% 10 38 6% 16 61 6% 21 80 8% 28 1066 152.4 14 53 12% 14 53 9% 24 91 9% 26 100 10% 34 130 8%7 177.8 16 61 14% 16 61 10% 27 102 10% 32 120 12% 40 1548 203.2 18 68 16% 18 68 11% 31 117 11% 37 140 13% 47 178 11%9 228.6 22 83 19% 22 83 14% 38 144 14% 42 160 15% 54 203

10 254.0 25 95 22% 25 95 16% 42 159 16% 48 180 17% 60 228 14%11 279.4 27 102 23% 27 102 17% 45 170 17% 53 200 19% 67 25412 304.8 29 110 25% 29 110 18% 48 182 18% 58 220 21% 74 280 17%13 330.2 34 129 30% 34 129 21% 57 216 21% 63 240 23% 81 30714 355.6 36 136 31% 36 136 22% 60 227 22% 69 260 25% 88 334 20%15 381.0 38 144 33% 38 144 23% 64 242 23% 74 280 27% 95 36016 406.4 40 151 35% 40 151 25% 68 257 25% 79 300 29% 102 387 24%17 431.8 45 170 39% 45 170 27% 75 284 27% 85 320 31% 109 41318 457.2 47 178 41% 47 178 29% 79 299 29% 90 340 33% 116 440 27%19 482.6 49 185 43% 49 185 30% 82 310 30% 95 360 35% 123 46520 508.0 51 193 44% 51 193 31% 86 326 31% 100 380 37% 129 490 30%21 533.4 56 212 49% 56 212 34% 93 352 34% 106 400 39% 136 51522 558.8 58 220 50% 58 220 35% 97 367 35% 111 420 40% 143 540 33%23 584.2 60 227 52% 60 227 37% 101 382 37% 116 440 42% 150 56524 609.6 65 246 57% 65 246 39% 108 409 39% 122 460 44% 156 590 36%25 635.0 67 254 58% 67 254 41% 113 428 41% 127 480 46% 163 61526 660.4 70 265 61% 70 265 42% 116 439 42% 132 500 48% 169 640 39%27 685.8 72 273 63% 72 273 44% 120 454 44% 137 520 50% 176 66528 711.2 77 291 67% 77 291 47% 128 484 47% 143 540 52% 182 690 42%29 736.6 79 299 69% 79 299 48% 132 500 48% 148 560 54% 189 71530 762.0 81 307 70% 81 307 49% 125 511 49% 153 580 56% 196 740 45%31 787.4 84 318 73% 84 318 51% 140 530 51% 159 600 58% 203 76532 812.8 89 337 77% 89 337 54% 148 56 54% 164 620 60% 209 790 48%33 838.2 91 344 79% 91 344 55% 152 575 55% 169 640 62% 216 81534 863.6 93 352 81% 93 352 57% 156 590 57% 174 660 64% 222 840 51%35 889.0 98 371 85% 98 371 59% 164 621 59% 180 680 66% 229 86536 914.4 100 379 87% 100 379 61% 167 632 61% 185 700 67% 235 890 54%37 939.8 102 386 89% 102 386 62% 171 647 62% 190 720 69% 242 91538 965.2 104 394 90% 104 394 63% 174 659 63% 196 740 71% 248 940 57%39 990.6 109 413 95% 109 413 66% 182 689 66% 200 760 73% 255 96540 1016.0 112 424 68% 186 704 68% 206 780 75% 262 990 60%41 1041.4 114 431 69% 190 719 69% 211 800 77% 269 101542 1066.8 116 439 70% 193 731 70% 217 820 79% 275 1040 63%43 1092.2 120 454 73% 201 761 73% 222 840 81% 282 106544 1117.6 123 466 75% 205 776 75% 227 860 83% 288 1090 67%45 1143.0 125 473 76% 209 791 76% 232 880 85% 295 111746 1168.4 127 481 77% 213 806 77% 238 900 87% 302 1143 70%47 1193.8 132 500 80% 221 836 80% 243 920 89% 309 117048 1219.2 134 507 82% 224 848 82% 248 940 92% 316 1196 73%49 1244.6 137 519 83% 228 863 83% 254 960 95% 323 122350 1270.0 141 534 86% 236 896 86% 330 1250 76%51 1295.4 144 545 87% 240 908 87% 337 127852 1320.8 146 553 89% 245 927 89% 345 1305 80%53 1346.2 148 560 90% 248 939 90% 352 133354 1371.6 153 579 93% 255 965 93% 359 1360 83%55 1397.0 155 587 94% 259 980 94% 367 139056 1422.4 157 594 95% 263 995 95% 375 1420 87%57 1447.8 383 145058 1473.2 391 1480 90%59 1498.6 399 151060 1524.0 407 1540 94%61 1549.4 412 1560 95%

Roth EcoDWT plus 3 Fill Chart

400L 620L 1000L 1000LH 1500L 110 gal 165 gal 275 gal 275 gal 400 gal

Roth Industries, Inc. DWT Lube TanksInstallation Supplement– Metallic NPT Adapters

All Roth DWT Tanks are shipped with one (1) 2” metallic NPT adapter and three (3) plastic NPT adapters. This installation kit provides three (3) metallic NPT adapters to replace the three (3) plastic NPT adapters provided.

Step 1) Remove the cap nuts (large black plastic nut) securing the plastic adapter, and remove each of the plastic adapters from the tank openings.

Step 2) Remove the #3 gasket from each of the plastic adapters and place them on the metallic adapters included this kit

Step 3) Place the metallic adapters in the tank openings and secure with the cap nuts, tighten to 18 Ft Lbs

Note: Replace dust caps if returning to storage. Protect tank top from weather if storing outside.

ROTH USA CODE ANALYSIS – 1AAK00055.000.001 PAGE D-1

JENSEN HUGHES

APPENDIX D: WOOD CRIB FIRE TEST REPORT

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Tech-Alllnc.199-9259

January 15, 1998

I PROPERTY I ROTH STEEL TANK

External maximum wall32 173temperature (Deg. C)

Internal liquid maximum55 93temperature (Deg. C)

Noise emittedNo Yesdue to heat stress

Still usable after test Yes, after gauge change Yes, after gauge change

Page 6 of 11

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ROTH USA CODE ANALYSIS – 1AAK00055.000.001 PAGE E-1

JENSEN HUGHES

APPENDIX E: HYDROCARBON FIRE TEST REPORT

Public Input No. 100-NFPA 30-2018 [ Section No. 21.4.2.1.1 ]

21.4.2.1.1*

Atmospheric tanks shall be designed and constructed in accordance with recognized engineering standards. Atmospheric tanks that meet any ofthe following standards shall be deemed as meeting the requirements of 21.4.2.1:

(1) API Specification 12B, Bolted Tanks for Storage of Production Liquids

(2) API Specification 12D, Field Welded Tanks for Storage of Production Liquids

(3) API Specification 12F, Shop Welded Tanks for Storage of Production Liquids

(4) API Standard 650, Welded Tanks for Oil Storage

(5) UL 58, Standard for Steel Underground Tanks for Flammable and Combustible Liquids

(6) ANSI/UL 80, Standard for Steel Tanks for Oil-Burner Fuels and Other Combustible Liquids

(7) ANSI/UL 142, Standard for Steel Aboveground Tanks for Flammable and Combustible Liquids

(8) UL 1316, Standard for Glass-Fiber Reinforced Plastic Underground Storage Tanks for Petroleum Products, Alcohols, and Alcohol-GasolineMixtures

(9) ANSI/UL 1746, Standard for External Corrosion Protection Systems for Steel Underground Storage Tanks

(10) UL 2080, Standard for Fire Resistant Tanks for Flammable and Combustible Liquids

(11) ANSI/UL 2085, Standard for Protected Aboveground Tanks for Flammable and Combustible Liquids

(12) UL 2258, Standard for Aboveground Nonmetallic Tanks for Fuel Oil and Other Combustible Liquids

Additional Proposed Changes

File Name Description Approved

Code_Requirements_Analysis_for_Roth_DWT_Nonmetallic_Tank_-_6-27-18.pdf

Code Requirements Analysis for a tank designed to UL 2258


As of May 17, 2018, UL 2258 is a consensus UL Standard, approved for issue by a technical committee consisting of members representing manufacturers, enforcing authorities, end users, NFPA, and UL. The scope of this document is specifically limited to storage of combustible liquids, primarily heating oil, diesel fuel, and motor oil, in nonmetallic tanks with capacities up to 660 gallons (2500 liters). Tanks listed to UL 2258 can be installed in accordance with NFPA 30 as described further in the attached Code Requirements Analysis document. Including UL 2258 in the list of acceptable tank construction standards will aid code officials, and users seeking to ensure that tanks proposed for installation are built in accordance with a recognized engineering standard.



Public Input No. 101-NFPA 30-2018 [Section No. 21.4.1.5]


Submitter Full Name: Gregory Maines

Organization: Jensen Hughes

Affiliation: Roth USA, Inc.

Street Address:

City:

State:

Zip:


Committee: FLC-TAN


2 of 37 7/11/2018, 9:34 AM

NFPA 30 FLC-TAN FIRST DRAFT AGENDA Page 12 of 52

3610 Commerce Drive | Suite 817 Baltimore, MD 21227 USA jensenhughes.com +1 410-737-8677 Fax: +1 410-737-8688

Code Requirements Analysis – Storage of Combustible Liquids in Roth DWT Nonmetallic Tank

Prepared For

Roth USA Inc. One General Motors Drive Syracuse, NY 13206 Prepared by:

Gregory S. Maines Alwin A. Kelly

June 27, 2018

Project #: 1AAK00055.000.001

ROTH USA CODE ANALYSIS – 1AAK00055.000.001 PAGE ii

JENSEN HUGHES

TABLE OF CONTENTS

1. EXECUTIVE SUMMARY ................................................................................................................. 1

2. INTRODUCTION .............................................................................................................................. 2

3. CODES AND STANDARDS ............................................................................................................ 3

3.1. NFPA 1 – Fire Code, 2018 Edition ................................................................................... 3

3.2. International Fire Code (IFC), 2018 Edition .................................................................... 3

3.3. NFPA 30 – Flammable and Combustible Liquids Code, 2018 Edition ......................... 3

3.4. NFPA 30A – Code of Motor Fuel Dispensing Facilities and Repair Garages, 2018 Edition ....................................................................................................................... 4

3.5. UL 2258 –Standard for Aboveground Nonmetallic Tanks for Fuel Oil and Other Combustible Liquids, 1st Edition (2018). .............................................................. 4

4. DESIGN AND CONSTRUCTION REQUIREMENTS OF CODES AND STANDARDS .................. 4

4.1. Tank Construction Standards and Material Requirements .......................................... 4

4.1.1. General Requirements for Tanks ........................................................................... 4

4.1.2. Comparison to Requirements for Intermediate Bulk Containers (IBCs) ................ 5

4.2. Requirements for Venting in Normal Operation and for Emergency Relief................ 6

4.2.1. Normal Venting ...................................................................................................... 6

4.2.2. Emergency Venting ................................................................................................ 6

4.3. Spill Containment .............................................................................................................. 8

4.4. Other Requirements ....................................................................................................... 10

4.4.1. Fire Protection ...................................................................................................... 10

4.4.2. Tank Spacing ....................................................................................................... 10

4.4.3. Storage Tank Buildings ........................................................................................ 11

4.4.4. Fire and Explosion Prevention and Risk Control ................................................. 12

4.4.5. Installation, Inspection, and Maintenance ............................................................ 12

5. Fire Tests on Roth DWT .............................................................................................................. 13

5.1. Wood Crib Fire Test ........................................................................................................ 13

ROTH USA CODE ANALYSIS – 1AAK00055.000.001 PAGE iii

JENSEN HUGHES

5.2. Pool Fire Test .................................................................................................................. 15

6. CONCLUSIONS ............................................................................................................................. 16

APPENDIX A: MULTITHERM IG-1 (WHITE MINERAL OIL) DATASHEET............................. A-1

APPENDIX B: FUEL OIL 1-D DATASHEET ............................................................................. B-1

APPENDIX C: ROTH DWT INSTALLATION MANUAL ........................................................... C-1

APPENDIX D: WOOD CRIB FIRE TEST REPORT .................................................................. D-1

APPENDIX E: HYDROCARBON FIRE TEST REPORT ............................................................ E-1


JENSEN HUGHES

1. EXECUTIVE SUMMARY

Tanks constructed in conformance with Underwriters Laboratories (UL) 2258 Standard for Aboveground Nonmetallic Tanks for Fuel Oil and Other Combustible Liquids, and specifically the Roth DWT tank, were evaluated for compliance with the combustible liquid storage provisions of widely-enforced codes and standards. UL 2258-listed tanks are generally accepted for storage of combustible liquid heating oils in accordance with NFPA 31, however NFPA 30, which is the most widely-applicable combustible liquid storage tank code, generally discourages use of these tanks for the storage of other combustible liquids. NFPA 30 does not prohibit the use of nonmetallic tanks for specific applications, such as aboveground storage of Class IIIB combustible liquids, but the code also does not explicitly list UL 2258 as a recognized engineering standard for atmospheric tanks. Typically, authorities having jurisdiction are reluctant to approve tanks that are not constructed in accordance with the design standards listed in NFPA 30.

Prior attempts to incorporate tanks listed to UL SU 2258 into NFPA 30, have been unsuccessful primarily due to two factors. First, SU 2258 was not a consensus UL Standard. UL developed UL 2258 as a consensus standard to replace SU 2258; this standard was published on May 17, 2018. Second, the NFPA 30 technical committee requested a comprehensive review of applicable code requirements to more completely evaluate all applicable code provisions against the proposed uses of nonmetallic tanks.

In this report, specific requirements of codes and standards are discussed in detail, along with guidance for installing the Roth DWT in compliance with these requirements. Where the requirements in the existing codes and standards do not explicitly address a potential hazard that may exist in the use of tanks of combustible construction, including the Roth DWT, additional guidance is provided in this report. As discussed in this report, tanks constructed to meet UL 2258 (such as the Roth DWT tanks) are potentially able to comply with all the applicable code requirements when Class IIIB liquids are being stored in the tank. The primary open question is confirmation that the non-sealed joint between the containment dike and the dike lid has sufficient capacity to meet the minimum emergency venting requirements in NFPA 30. Further work is required to fully address storage of Class II and IIIA liquids inside buildings; there is potential to have a compliant installation outside with storage of Class II and IIIA liquids.




