Diesel Engine Air Intake Shutoff Valves - AMOT- · PDF fileDiesel Engine Air Intake Shutoff...

Diesel Engine Air Intake Shutoff Valves

Model RDS2 Swing Gate Valve

Overview

If flammable gas or vapor is present in the atmosphere surrounding a diesel engine, it can be ingested into the engine and become an ungoverned fuel supply. This ungoverned fuel can result in runaway engine overspeed potentially leading to dangerous mechanical failure or explosion.

The Roda Deaco RDS2 Swing Gate Valve is a positive spring actuated air intake shutoff valve that provides emergency overspeed shutdown of a diesel engine. The RDS2 Swing Gate Valve can be triggered to close which starves the engine of air and shuts down the engine.

Key Features and Benefits

lEasy to install and maintain

lLightweight, compact design

l Corrosion resistant aluminum, stainless steel and brass construction

lUsed in manual and automatic actuation systems:

- Electric

- Pneumatic

- Electric/pneumatic

- Mechanical

lWide variety of installation kits for most installations

RDS2 Mechanical Actuated Valve

www.rodadeaco.comDS-RO-RDS2-0809-Rev3

RODA Division

Typical Applications

l Drilling rigs (onshore & offshore)

lDrilling support equipment

lWell servicing equipment

lRefinery support equipment

lBulk haulers and tankers

l Generator sets

l Mining equipment

lConstruction equipment

lEmergency response vehicles and equipment

lAircraft support equipment

lWork boats

l Barges

l Agriculture equipment

Diesel Engine Air Intake Shutoff Valves - RDS2

DS-RO-RDS2-0809-Rev3 www.rodadeaco.com

SpecificationStandard materials: Valve body Aluminum

Gate arm Plated steel

Sealing element Floating phenolic disc

Seals Buna N/Silicon standard

Pneumatic cylinder Aluminum, stainless steel, and brass

Solenoid housing Plated steel

Net weights Manual actuated 5.5 lbs 2.5 kg

(incl actuator): Pneumatic actuated 5.5 lbs 2.5 kg

Solenoid actuated 7.5 lbs 3.4 kg

Intake air temperature range: Standard valve -40°F to 221°F -40°C to 105°C

Ambient air temperature range: Standard valve -40°F to 257°F -40°C to 125°C

Electric solenoid Standard solenoid

actuation: Nominal 12 VDC power requirement 70.5 amp pull in 0.9 amp hold

Nominal 24 VDC power requirement 36.4 amp pull in 0.5 amp hold

Cycle rate 6 activations per minute

Pneumatic cylinder Recommended pressure 90 psi - 130 psi 6.2 bar - 9.0 bar

actuation: Minimum pressure 80 psi 5.5 bar

Maximum pressure 150 psi 10.3 bar

Manual actuation: Mechanical pull to release 28 lbs 125 Newtons

Operation

The Model RDS2 is a compact swing gate design air intake shutoff valve available with electric, pneumatic, or mechanical actuation. Actuation of the Model RDS2 closes the valve’s sealing element which shuts off intake air flow into the engine. The RDS2 can be used in fully automatic or manual shutdown systems.

Refer to the Roda Deaco System Selection Guide to determine the appropriate system and actuation for your application.



Valve Selection

The RDS2 Swing Gate Valve can be used in applications where the air intake line is 11/2 to 4 inches (38 - 100 mm) in diameter. The RDS2 Swing Gate Valve can be mounted in vertical or horizontal orientations and airflow through the valve can be in either direction.

When specifying the valve note the clearance requirements for the valve with the geometry of the engine and intake line for your application. Note that the valve reset handle is used only on the mechanical and pneumatic actuated valves. The reset handle is not required on the solenoid actuated valve.

To accommodate the installation requirements for the wide variety of diesel engine applications, the size and attachment types on the valve body and the valve cover are specified separately. The valve attachments are available in several styles including: hose, O-ring, V-clamp, flange, and engine specific adapters.

The RDS2 Swing Gate Valve is available in several standard sizes for intake air lines ranging from 11/2 to 2 7/8 inches (38 - 73 mm) in diameter. Standard sizes for hose, V-clamp, and O-ring attachments are listed to the left. Additional sizes are available to meet specific application requirements.

Standard Attachment Sizes

1 1/2” 38 mm

1 5/8” 41 mm

1 3/4” 44 mm

1 7/8” 48 mm

2” 51 mm

2 1/4” 57 mm

2 3/8” 60 mm

2 1/2” 64 mm

2 5/8” 67 mm

2 3/4” 70 mm

2 7/8” 73 mm

Front view of valve

Profile view of valve

Valve Size



Valve Selection Continued

Valve Attachment Mechanism

The hose attachment is the standard attachment mechanism. However, additional attachments are available including O-Ring, V-Clamp, Flange, and engine specific adapters. Examples are

shown below. To accommodate the installation requirements for the wide variety of diesel engine applications, the size and connection types on the valve body and the valve cover are specified separately.

Hose Attachment

Uses sections of flexible hose and band clamps to attach the valve to intake line.

V-Clamp AttachmentHeavy duty V-style ring clamp used to clamp valve to metal intake lines. Several types of V-clamp connections are available.

O-Ring AttachmentSpace saving single or dual O-Ring attachments are available. O-Rings are used to seal rigid air intake line connections.

Flange AttachmentFlange attachments on the valve are available to secure the valve to the engine.

Special AttachmentsAdditional attachments are available on request.

Standard Hose x Standard Hose

Exterior Single O-Ring x Exterior Single

O-Ring

Dual O-Ring x O-Ring Receiver Cup

Male V Clamp x Female V Clamp

Interior Dual O-Ring x Interior Dual O-Ring

Extended Depth Hose x Extended Depth Hose

Flat Face V Clamp x Standard Hose

Flange x Flange Interior Dual O-Ring x Flange

Female V Clamp x Male Notched V Clamp



Valve Features Selection

The RDS2 Diesel Engine Air Intake Shutoff Valve valve has three actuation methods: pneumatic, electric and mechanical. Please refer to the Roda Deaco System Selection Guide for complete descriptions of the systems to help determine the proper actuation required for your application.

Electric Actuation

The electrically actuated RDS2 is an energize-to-close valve. It operates using either 12 VDC or 24 VDC power. The valve will automatically reset after the engine stops and power is removed. The electrically actuated RDS2 valve is designed for use in the systems indicated below:

l Automatic Electric Overspeed RPM Detection with Manual Override

l Manual Electric System

Pneumatic Actuation

The pneumatically actuated RDS2 is designed for mechanical latching in the open position (engine run) and air pressure actuated closure. The pneumatically actuated RDS2 is reset manually.The pneumatically actuated RDS2 valve is designed for use in the systems indicated below:

l Automatic Electric Overspeed RPM Detection with Pneumatic Actuation

l Manual Electric/Pneumatic System

l Manual Pneumatic System

Mechanical Actuation

The mechanically actuated RDS2 can be operated by using either a remote cable pull system or by direct operator action on the valve. The mechanically actuated RDS2 is reset manually. The valve is designed for use in the systems indicated below:

l Remote Cable Actuated System

l Direct Actuated Valve

Valve Actuation Type

Pneumatic Actuation

Electric Actuation

Mechanical Actuation



Valve Features Selection Continued

The RDS2 Swing Gate Valve can be used on intake lines of naturally aspirated or turbo-charged engines where air intake line temperatures do not exceed 221°F (105°C) at the valve.

Valve Intake Air Temperature Rating

Temperature range

Standard range -40°F to 221°F -40°C to 105°C

The RDS2 Swing Gate Valve has two options that can be added individually or in combination to meet additional requirements for applications.

Pneumatic Reset

A pneumatic cylinder can be added to the valve to provide remote reset capability for pneumatically and mechanically actuated valves.

Valve Features Options

Pneumatic Reset



Actuation Kits

Actuation kits are provided with each system sold. The actuation kit contains hardware required to properly install and integrate the specified shutdown system into the diesel engine application. The kits, specific for each type of system and application, can include items such as:

l Voltage control module

l Relays

l Circuit breaker

l Toggle switch

l Cable with T-handle

Installation kits are also provided with each system sold. The installation kit contains the hardware required to facilitate the installation of the Air Intake Shutoff Valve into a diesel engine air intake line. Roda Deaco has hundreds of different installation kits designed to meet specific engine model and application requirements. The kits can range from hose with clamps to custom intake pipes, elbows, flanges, brackets, etc.

Installation Kits

Double Elbow Kit Complex 3 Elbow Kit

Single Elbow Kit with Multiple Hose

Simple Hose Kits

Electric Pneumatic Actuation Kit

Manual Pneumatic Actuation Kit Manual Pull Cable Actuation Kit

Electric Actuation Kit



Dimensions

Electrically Actuated Valve

Pneumatically and Mechanically Actuated Valves

Clearance Dimensions

A* B C D E

1.500 (38)

3.500 (89)

1.250 (32)

4.250 (108)

3.500 (89)

1.750 (44)

3.375 (86)

1.125 (29)

4.125 (105)

3.375 (86)

2.000 (51)

3.250 (64)

1.000 (25)

4.000 (102)

3.250 (64)

2.250 (57)

3.125 (80)

0.875 (22)

3.875 (98)

3.125 (80)

2.500 (64)

3.000 (76)

0.750 (19)

3.750 (95)

3.000 (76)

2.750 (70)

2.875 (73)

0.625 (16)

3.625 (92)

2.875 (73)

Clearance Dimensions

A* B C D E F

1.500 (38)

5.25 (133)

1.250 (32)

4.250 (108)

1.500 (38)

5.750 (146)

1.750 (44)

5.125 (130)

1.125 (29)

4.125 (105)

1.375 (35)

5.625 (143)

2.000 (51)

5.000 (127)

1.000 (25)

4.000 (102)

1.250 (32)

5.500 (140)

2.250 (57)

4.875 (124)

0.875 (22)

3.875 (98)

1.125 (29)

5.375 (137)

2.500 (64)

4.75 (121)

0.750 (19)

3.750 (95)

1.000 (25)

5.250 (133)

2.750 (70)

4.625 (117)

0.625 (16)

3.625 (92)

0.875 (22)

5.125 (130)

Dimension in inches (mm)

Dimension in inches (mm)

6.25 (159)

9.25 (235)

4.50 (114)

3.50 (89)

1.00 (25)

C

B

A

C

A

B

8.00 (203)

1.00 (25)

3.50 (89)

8.75 (222)

F

A

ED

7.250 (184)

D E

*Hose Attachment Size Inches (mm)

*Hose Attachment Size Inches (mm)



How to Order

Note that many engines are available in different configurations in different equipment. Some examples include: turbocharged, turbocharged with air to air intercooler, turbocharged with a liquid aftercooler on the engine, twin turbocharger arrangements and naturally aspirated engines.

Roda Deaco has a broad array of fully automatic and manual shutoff systems. The systems have sensors, switches, valves, actuation kits and hundreds of different installation kits available to facilitate installation of systems.

When ordering, please complete the Roda Deaco Ordering Information form shown on the left. The form is available electronically on the Roda Deaco web site, www.rodadeaco.com, by contacting your local representative or contacting Roda Deaco Customer Service. See the back of this datasheet for contact information.

Roda Deaco Valve ▪ 3230-97 Street ▪ Edmonton, Alberta ▪ Canada ▪ T6N 1K4

OORRDDEERRIINNGG IINNFFOORRMMAATTIIOONN SSHHEEEETT

Application Contact Billing Contact Customer Name Customer Name Customer Title Customer Title Contact Number Contact Number Fax Number Fax Number Email Email Company Name Company Name Shipping Address Billing Address

Application Information

Stationary Mobil Marine Equipment Application Quantity for this application Equipment Name Equipment Model

Engine Information

Make Model Year Serial/VIN No.

Turbocharger and Intake Air Cooling Information

Intercooler (Air to Air cooler mounted with engine radiator) No air cooling after turbocharger Aftercooler (liquid cooler in the engine) No turbocharger – the engine is natural aspirated

Air Intake Line Information:

The air intake shutoff valve is usually installed at the inlet to the engine. Please provide the air inlet line information requested below.

Number of Inlet lines Turbocharger Boost pressure Intake line air temperature (if known)

Inlet Line Material: Metal Pipe: outside diameter Rubber Hose: inside Diameter Inlet Line or Elbow Part Number:

Attachment mechanism of Air Intake Line to the inlet to the engine:

Hose Standard Extended V-Clamp Flat face Female Male NotchedO-Ring Internal External Receiver Cup Single O-ring Dual O-Ring Flange Round Square Trapezoid Other Number of Bolts Other (Please specify and include photos) Refer to the Roda Deaco System Selection Guide for information about the system listed below.

Automatic RPM Overspeed Detection and Shutdown Systems with manual Override Electronic RPM Detection with Electric Actuated Valve and

Manual Override Electronic RPM Detection with Pneumatic Acutated Valve and

Manual OverrideSystem Voltage: 12 vdc 24 vdc System Voltage: 12 vdc 24 vdc

Manual Actuated Systems and Valves Electric Actuation System Electric Switch with Pneumatic Valve

System Voltage: 12 vdc 24 vdc System Voltage: 12 vdc 24 vdc

Pneumatic SystemCable System

10 20 30 Direct Manual ValveAdditional Valve Features

Proximity Switch Valve Position Indication (Available on RDS2, RDS3, and RDS5 models)

Pneumatic Reset (Available on pneumatic and mechanical actuated valves)

Please submit this form by email or fax: Email: [email protected] Fax: (780) 469-6275

CCuussttoommeerr IInnffoorrmmaattiioonn

AApppplliiccaattiioonn IInnffoorrmmaattiioonn Please fill out this form to the best of your ability. Photos welcome

EEnnggiinnee OOvveerrssppeeeedd SSaaffeettyy SSyysstteemm IInnffoorrmmaattiioonn



Valve Model Code

Attachment Mechanism

Example Code RDS2 - 2250 HA 2250 HA - E1 L D Code Description

Valv

e B

od

y S

ele

ctio

n

Valve Family TypeRDS2 RDS2 Swing Gate Valve

Valve Body Side Attachment Size(additional sizes available)

Body Attachment Outer Diameter Size - inches1500 1.500 1 1/2 (38 mm)1625 1.625 1 5/8 (41 mm)1750 1.750 1 3/4 (44 mm)1875 1.875 1 7/8 (48 mm)2000 2.000 2 (51 mm)2250 2.250 2 1/4 (57 mm)2375 2.375 2 3/8 (60 mm)2500 2.500 2 1/2 (64 mm)2625 2.625 2 5/8 (67 mm)2750 2.750 2 3/4 (70 mm)2875 2.875 2 7/8 (73 mm)

Valve Body Side Attachment Mechanism(additional attachments available)

Body Attachment MechanismHA Standard hose connectionIA O-Ring internal singleUA O-Ring internal dualXA O-Ring external singleLA O-Ring external dualFA O-Ring receiver femVA V-clampEA V-clamp femaleMA V-clamp male

Valve Cover Side Attachment Size (additional sizes available)

Cover Attachment Outer Diameter Size - inches1500 1.500 1 1/2 (38 mm)1625 1.625 1 5/8 (41 mm)1750 1.750 1 3/4 (44 mm)1875 1.875 1 7/8 (48 mm)2000 2.000 2 (51 mm)2250 2.250 2 1/4 (57 mm)2375 2.375 2 3/8 (60 mm)2500 2.500 2 1/2 (64 mm)2625 2.625 2 5/8 (67 mm)2750 2.750 2 3/4 (70 mm)2875 2.875 2 7/8 (73 mm)

Valve Cover Side Attachment Mechanism(additional attachments available)

Cover Attachment MechanismHA Standard hose connectionIA O-Ring internal singleUA O-Ring internal dualXA O-Ring external singleLA O-Ring external dualFA O-Ring receiver femVA V-clampEA V-clamp femaleMA V-clamp male

Valv

e F

eatu

re S

ele

ctio

n

Valve Actuation Type

Actuator TypeMech M0 MechanicalPneu PC Pneumatic Air Pressure to Close

Elec E1 12 volt solenoidE2 24 volt solenoid

Inlet Air Line Temperature Inlet Air TemperatureL -40ºF - 221ºF (-40ºC - 105ºC)

Valve Options

OptionsA No OptionsB Pneumatic Reset (Pneumatic and Mechanical Actuator)C Squared-off bodyE Pneumatic Reset and Squared-off Body (Pneumatic and Mechanical)

The contents of this publication are presented for informational purposes. While every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. The purchaser and end user are responsible for analyzing all aspects of their application and using their own judgment in the final selection, use, and maintenance of the system and components. The purchaser and end user are also responsible for assuring that all performance, safety and warning requirements of the application are met. Roda Deaco, AMOT, Roper Industries, or any of their affiliated entities assume no responsibility for the selection, use, or maintenance of any product.

www.rodadeaco.com

RODA Division

Europe, Middle East and Africa

Western WayBury St EdmundsSuffolk, IP33 3SZUK

Tel +44 (0) 1284 762222Fax +44 (0) 1284 760256Email [email protected]

North and South America

3230 - 97 Street Edmonton Alberta T6N 1K4 Canada Tel +1 780 465 4429 Fax +1 780 469 6275 Email [email protected] 8824 Fallbrook DrHouston TX 77064USA

Tel +1 (281) 940 1800Fax +1 (713) 559 9419Email [email protected]

Asia Pacific

Rm A308 Building A8 Jiahua Business Center808 Hongqiao RoadShanghai 200030China

Tel +86 (0) 21 6447 9708Fax +86 (0) 21 6447 9718Email [email protected]

An ISO 9001 Registered Company

Diesel Engine Air Intake Shutoff Valves - AMOT- · PDF fileDiesel Engine Air Intake Shutoff...

Documents

Transcript of Diesel Engine Air Intake Shutoff Valves - AMOT- · PDF fileDiesel Engine Air Intake Shutoff...