U.S. Department of the Interior Bureau of Reclamation December 2016

Design Standards No. 6

Hydraulic and Mechanical Equipment

Chapter 14: Auxiliary Mechanical Systems Phase 4 (Final)

Mission Statements

The U.S. Department of the Interior protects Americas natural

resources and heritage, honors our cultures and tribal communities,

and supplies the energy to power our future.

The mission of the Bureau of Reclamation is to manage, develop,

and protect water and related resources in an environmentally and

economically sound manner in the interest of the American public.

Design Standards Signature Sheet

Design Standards No. 6

Hydraulic and Mechanical Equipment DS-6(14): Phase 4 (Final) December 2016

Chapter 14: Auxiliary Mechanical Systems

Foreword Purpose

The Bureau of Reclamation (Reclamation) design standards present technical

requirements and processes to enable design professionals to prepare design

documents and reports necessary to manage, develop, and protect water and

related resources in an environmentally and economically sound manner in the

interest of the American public. Compliance with these design standards assists

in the development and improvement of Reclamation facilities in a way that

protects the public's health, safety, and welfare; recognizes needs of all

stakeholders; and achieves lasting value and functionality necessary for

Reclamation facilities. Responsible designers accomplish this goal through

compliance with these design standards and all other applicable technical codes,

as well as incorporation of the stakeholders vision and values, that are then

reflected in the constructed facilities.

Application of Design Standards Reclamation design activities, whether performed by Reclamation or by a non-

Reclamation entity, must be performed in accordance with established

Reclamation design criteria and standards, and approved national design

standards, if applicable. Exceptions to this requirement shall be in accordance

with provisions of Reclamation Manual - Policy, FAC P03, Performing Design

and Construction Activities.

In addition to these design standards, designers shall integrate sound engineering

judgment, applicable national codes and design standards, site-specific technical

considerations, and project-specific considerations to ensure suitable designs are

produced that protect the public's investment and safety. Designers shall use the

most current edition of national codes and design standards consistent with

Reclamation design standards. Reclamation design standards may include

exceptions to requirements of national codes and design standards.

Proposed Revisions

Reclamation designers should inform the Technical Service Center (TSC), via

Reclamations Design Standards Website notification procedure, of any

recommended updates or changes to Reclamation design standards to meet

current and/or improved design practices.

Chapter Signature Sheet Bureau of Reclamation Technical Service Center

Design Standards No. 6

Hydraulic and Mechanical Equipment Chapter 14: Auxiliary Mechanical Equipment

DS-6(14): Phase 4 (Final)

December 2016

Chapter 14 Auxiliary Mechanical Equipment is a new chapter within Design

Standards No. 6 and includes design of equipment and/or plumbing for the

following systems:

Cooling water

Compressed air

Fire suppression

Oil filtration and dandling

Potable water and sanitary waste

Drainage, etc.

Prepared by:

Mechanical Engineer, Mechanical Equipment Group

z1,te Date

Date

12 h?,A6

fended for Technical Approval:

,AW oss, P. E. -" Mechanical Engineer, Mechanical Equipment Group

Peer Review:

William D. McStraO, P.E. Date Manager, Mechanical Equipment Group

Security Review:

- . I k,#. a A A AA,'-,- 5/V2017 Ryan tephen I Date Mechanical Engineer, Mechanical Equipment Group

Submitted:

George Girgis, P.E. ~/ Chief, Infrastructure Services Division

Approved:

Tom Luebke, P.E. Director, Technical Service Center

s/9/2o/7 Date

ate

Contents

Page

14.1 Scope ........................................................................................ 14-1 14.2 General Considerations ............................................................... 14-1 14.3 Codes and Standards ................................................................... 14-1 14.4 Levels of Design ......................................................................... 14-3

14.4.1 Appraisal Level .................................................................... 14-3 14.4.1.1 General ................................................................ 14-3 14.4.1.2 Equipment Sizing and Selection .......................... 14-4 14.4.1.3 Construction Documents ..................................... 14-4 14.4.1.3.1 Drawings ........................................... 14-4 14.4.1.3.2 Specifications .................................... 14-4 14.4.1.3.3 Quantity Estimates ............................ 14-4 14.4.2 Feasibility Level ........................................................... 14-4

14.4.2. General .................................................................. 14-4 14.4.2.2 Equipment Sizing and Selection ........................... 14-5 14.4.2.3 Construction Documents ....................................... 14-5 14.4.2.3.1 Drawings ........................................... 14-5 14.4.2.3.2 Specifications .................................... 14-5 14.4.2.3.3 Quantity Estimates ............................ 14-5

14.4.3 Final Design ......................................................................... 14-5 14.4.3.1 General ................................................................ 14-5 14.4.3.2 Equipment Sizing and Selection .......................... 14-6 14.4.3.3 Construction Documents ..................................... 14-6 14.4.3.3.1 Drawings ........................................... 14-6 14.4.3.3.2 Specifications .................................... 14-6 14.4.3.3.3 Quantity Estimates ............................ 14-6

14.5 Submission Requirements ........................................................... 14-6 14.5.1 Equipment and Material Cut Sheets .................................... 14-7 14.5.2 Drawings .............................................................................. 14-7 14.5.2.1 Drawing Size ....................................................... 14-7 14.5.2.2 Drawing Lettering ............................................... 14-7 14.5.2.3 Drawing Scale ..................................................... 14-7 14.5.2.4 Computer-Aided Design Standards ..................... 14-7 14.5.2.5 Diagrams ............................................................. 14-7 14.5.2.6 Layouts ................................................................ 14-8 14.5.2.7 Detail Drawings ................................................... 14-8 14.5.2.8 Embedded Pipe Drawings ................................... 14-8 14.5.2.9 Schedules ............................................................. 14-8 14.5.3 System Design ................................................................... 14-8 14.5.3.1 Fire Suppression .................................................. 14-8 14.5.3.2 Cooling Water ..................................................... 14-9 14.5.3.3 Potable Water and Sanitary Waste ...................... 14-9

DS-6(14) December 2016 14-i

Contents (continued) Page

14.5.3.4 Service Water .................................................... 14-10 14.5.3.5 Compressed Air ................................................. 14-10 14.5.3.6 Sump Pumping .................................................. 14-10 14.5.3.7 Oil Handling ...................................................... 14-10 14.5.3.8 Oil Filtration ...................................................... 14-10 14.5.3.9 Unwatering ........................................................ 14-11 14.5.3.10 Gravity Drainage ............................................... 14-11 14.5.3.11 Mechanical Seal Water ...................................... 14-11 14.5.4 Pipe Design ........................................................................ 14-11

14-ii DS-6(14) December 2016

Chapter 14

Auxiliary Mechanical Systems

14.1 Scope

This chapter identifies the design criteria to be used to design auxiliary

mechanical systems. Auxiliary mechanical systems are defined as mechanical

equipment, piping, and appurtenances distributed throughout a dam, powerplant,

pumping plant, or other Bureau of Reclamation (Reclamation) building to provide

service, support, and/or protection of other systems within a facility. This design

standard provides assistance in designing new systems or replacing deteriorated

components in existing auxiliary mechanical systems to maximize the service life

of each system.

14.2 General Considerations

The design of auxiliary mechanical systems, along with other building design

features, should combine to produce a building that meets the requirements of the

most recent vers