B.08 W9127N24R0006 0004 Solicitation Amendment JDGCW22_SPECS_AMD0004.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The purpose of this amendment is to provide revised specifications and draw ings from questions asked through bidder inquiries. See Summary of Changes. All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 2

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 29-Oct-2024

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W9127N24R0006

X 9B. DATED (SEE ITEM 11)

11-Sep-2024

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

29-Oct-2024

CODE

USACE, PORTLAND DISTRICT

333 SW 1ST AVE

PORTLAND OR 97204

W9127N 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W9127N24R0006

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00 01 10 - TABLE OF CONTENTS

The Table of Contents has changed from:

Exhibit/Attachment Table of Contents

DOCUMENT TYPE DESCRIPTION PAGES DATE

Attachment 1 B.08 ATTACHMENT A -

OFFEROR'S

EXPERIENCE FORM

Attachment 2 B.08 ATTACHMENT B -

PAST PERFORMANCE

QUESTIONNAIRE

Attachment 3 Resource Drawings to:

Exhibit/Attachment Table of Contents

DOCUMENT TYPE DESCRIPTION PAGES DATE

Attachment 1 B.08 ATTACHMENT A -

OFFEROR'S

EXPERIENCE FORM

Attachment 2 B.08 ATTACHMENT B -

PAST PERFORMANCE

QUESTIONNAIRE

Attachment 3 Resource Drawings Attachment 4 Amendment 0004

Drawing JDP-1.004_M-

102XXX-ANSI_D-

Attachment 5 Amendment 0004 Specs 22 00 00.00 26

(End of Summary of Changes)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

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COOLER 2

COOLER 3

COOLER 4

COOLER 5

COOLER 6

COOLER 7

COOLER 8

COOLER 9

COOLER 10

COOLER 11

COOLER 12

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DIELECTRIC UNION (2 PLACES)

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ISOLATION VALVEISOLATION VALVE

WYE FITTING

FLEX HOSE (2 PLACES)

DIELECTRIC UNION (2 PLACES)

TEE FITTING

VALVE

CONTROL

MODULATION

AIR COOLER

GENERATOR

INSTALL

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MODULATION CONTROL

THRUST BEARING

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SECTION

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GENERAL NOTES:

SECTION 22 00 00.00 26.

3. ALL VENT PIPING AND FITTINGS TO BE STAINLESS STEEL. SEE SPECIFICATION

2. EQUIPMENT MARKED FOR INSTALLATION TYPICAL FOR MAIN UNITS 1-16.

1. RED OR BOLD INDICATES EQUIPMENT TO BE INSTALLED.

RESOURCE DRAWINGS:

DRAWING NO TITLE

JDP-9-3-9/23

JDP-1.1-3-9/54

757-E-291R

TURBINE COOLING WATER SYSTEM

PIPING DIAGRAM GENERATOR &

GLAND WATER SYSTEMS

PIPING DIAGRAMS GENERATOR COOLING &

AIR COOLER PIPING

SAME EXCEPT OTHERHAND

3, 4, 6, 7 & 8 COOLERS 1, 2, 11 & 12

VENT COOLER 5, TYP FOR COOLERS

NOT TO SCALE

SECTION

E12

EXCEPT OTHERHAND

VENT COOLER 10, COOLER 9 SAME

NOT TO SCALE

SECTION

E16

M2

M102

SAME EXCEPT OTHERHAND

3,4,5,6,7,8 & 9. COOLERS 1,2,10, 11 & 12

VENT HEADER CONNECTION, COOLERS

NOT TO SCALE

DETAIL

J12

C6

M102 NOT TO SCALE

VIEW - COOLING WATER DISCHARGE

A13

SHUT-OFF VALVE, NORMALLY OPEN

UNION

F L

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LEGEND

INSTALL TEMPERATURE AND PRESSURE SENSORS BEFORE THE VALVE

INSTALL TEMPERATURE AND PRESSURE SENSORS BEFORE THE VALVE

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John Day Generator Cooling Water

PROJECT TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 10 00.00 25 CONTRACT ADMINISTRATION DATA

01 10 10.00 25 CONTRACTOR'S OPERATIONS AND REQUIREMENTS

01 11 00.00 25 SUMMARY OF WORK

01 22 00.00 25 MEASUREMENT AND PAYMENT

01 32 01.00 25 PROJECT SCHEDULE

01 33 00 SUBMITTAL PROCEDURES

01 33 26.00 26 ELECTRICAL AND CONTROL DRAWINGS AND DATA

01 35 26.00 25 GOVERNMENTAL SAFETY REQUIREMENTS

01 42 00 SOURCES FOR REFERENCE PUBLICATIONS

01 45 00.00 25 QUALITY CONTROL

01 45 00.15 25 RESIDENT MANAGEMENT SYSTEM CONTRACTOR MODE (RMS CM)

01 57 19.00 25 TEMPORARY ENVIRONMENTAL CONTROLS

01 78 23.00 25 OPERATION AND MAINTENANCE DATA

01 78 39.00 25 PROJECT RECORD DOCUMENTS

DIVISION 02 - EXISTING CONDITIONS

02 83 00.00 25 LEAD REMEDIATION

DIVISION 09 - FINISHES

09 90 00.01 26 PAINTS AND COATINGS

DIVISION 22 - PLUMBING

22 00 00.00 26 BASIC MECHANICAL MATERIALS AND METHODS

DIVISION 26 - ELECTRICAL

26 05 00.00 26 BASIC ELECTRICAL MATERIALS AND METHODS

26 05 19.00 26 INSULATED WIRE AND CABLE

26 05 26.00 26 GROUNDING

26 08 01.00 26 SYSTEMS TESTING AND COMMISSIONING

DIVISION 40 - PROCESS INTERCONNECTIONS

40 05 13.96 26 WELDING, PIPING

40 95 00.00 26 PROCESS CONTROL

-- End of Project Table of Contents --

PROJECT TABLE OF CONTENTS Page 1

AMD #0004

SECTION TABLE OF CONTENTS

DIVISION 22 - PLUMBING

SECTION 22 00 00.00 26

BASIC MECHANICAL MATERIALS AND METHODS

PART 1 GENERAL

1.1 GENERAL INFORMATION

1.2 REFERENCES

1.3 SUBMITTALS

1.4 SYSTEM DESCRIPTION

1.4.1 General

1.4.2 Performance Requirements

1.5 MODULATION VALVE SYSTEM DESIGN

1.6 DELIVERY, STORAGE, AND HANDLING

1.7 QUALITY ASSURANCE

1.7.1 Verification of Dimensions

1.7.2 Drawings

1.7.3 Product Data

1.7.4 Pipe Schedule

1.7.5 Valve and Operator Schedule

1.8 PROJECT/SITE CONDITIONS

1.8.1 Existing Conditions

1.8.2 Connection to Existing Equipment

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

2.1.1 Materials

2.1.2 Standard Products

2.1.3 Identification and Tagging

2.2 BOLTS, NUTS, STUDS, AND WASHERS

2.3 PIPE THREADS

2.3.1 Threaded Joints

2.3.2 Pipe Nipples

2.4 CARBON STEEL PIPING SYSTEM

2.4.1 Carbon Steel Pipe

2.4.2 Carbon Steel Joints

2.4.3 Carbon Steel Fittings

2.4.3.1 Welding Fittings

2.4.3.2 Flanged Fittings

2.4.4 Branch Connection Fittings

2.4.5 Carbon Steel Coatings

2.5 STAINLESS STEEL TUBING SYSTEM

2.5.1 Tubing

2.5.2 Fittings

2.5.3 Flexible Stainless Steel Hose

2.6 ISOLATION JOINTS

2.6.1 FLANGE CONNECTIONS

2.6.2 Dielectric Unions

2.7 PIPE INSULATION

2.8 VALVES

2.8.1 General Requirements For Valves

2.8.2 Factory Finishing

2.8.3 Ball Valves

SECTION 22 00 00.00 26 Page 1

2.8.4 Globe Valves

2.8.5 Gate Valves

2.8.6 Generator and Thrust Bearing Cooling Water Discharge Valves

2.8.6.1 Digital Controller

2.8.7 Operators

2.8.7.1 Manual Operator

2.9 PIPE SUPPORTS

2.9.1 Pipe Supports, General

2.9.2 Hanger Types

2.9.3 Beam Clamps

2.9.4 Riser Clamps

2.9.5 Brackets

2.9.6 Offset Pipe Clamp

2.9.7 Racks

2.9.8 Hangers

2.9.9 Hanger Rods

PART 3 EXECUTION

3.1 GENERAL

3.1.1 Functionality During Construction

3.1.2 Coordination With Other Work

3.2 FIELD VERIFICATION

3.3 DRAWINGS

3.4 PREPARATION

3.4.1 Protection

3.4.2 Damaged Coatings

3.5 DEMOLITION OF EXISTING EQUIPMENT

3.5.1 Existing Unit 1 Modulation Valve System

3.6 INSTALLATION

3.6.1 General Installation

3.6.2 Installation Alignment

3.6.3 Workmanship

3.6.4 Welders and Welding

3.6.5 Solder Joints

3.6.6 Flexible Pipe Connections

3.6.7 Piping Equipment/Component Installation

3.6.8 Pipe Flanges

3.6.9 Valve Locations

3.6.10 Pipe Tap Connections

3.7 CONNECTING DISSIMILAR PIPE

3.8 EXTERNAL CORROSION PROTECTION

3.9 VALVE INSTALLATION

3.9.1 Identification Of Normal Position Of Valves

3.10 SPARE PARTS

3.10.1 General

3.10.2 Packaging and Storage

3.10.3 Generator Air Cooling Water Modulation Valve

3.10.4 Thrust Bearing Cooling Water Modulation Valve

3.10.5 Flexible Stainless Steel Hose

3.11 PIPING SUPPORT SYSTEMS INSTALLATION

3.11.1 General Support Requirements

3.11.2 Dielectric Barriers

3.11.3 Support Methods

3.12 RAW WATER PIPING

3.12.1 Generator Air Cooler Vent Tubing

3.12.2 Generator Air and Thrust Bearing Cooler Modulation

3.12.3 Generator Air and Thrust Bearing Cooler Flow Meters

3.12.4 Generator Air Cooling Water Header Piping Supports

SECTION 22 00 00.00 26 Page 2

3.12.5 Raw Water Testing and Testing Report

3.13 PIPE CLEANING AND FLUSHING PROCEDURE

3.13.1 Interim Cleaning

3.13.2 Flushing

3.13.2.1 Spill Prevention Plan

3.14 FIELD QUALITY CONTROL

3.14.1 Pressure Testing

3.14.2 Testing New to Existing Connections

3.14.3 Valve Testing

3.14.4 Pressure Testing Plan

3.14.5 Pressure Testing Report

3.15 WASTE WATER DISPOSAL

3.16 OPERATION AND MAINTENANCE DATA

-- End of Section Table of Contents --

SECTION 22 00 00.00 26 Page 3

SECTION 22 00 00.00 26

BASIC MECHANICAL MATERIALS AND METHODS

PART 1 GENERAL

1.1 GENERAL INFORMATION

This Section covers the general requirements for supply, installation, and testing for raw water piping and related equipment for units 1-16 of this project. Additionally the following work is to be included:

a. Remove existing and install new vent piping for the generator surface air coolers. See Contract drawings M-101 and M-102. See reference drawings 757-E-291, CJP-1.1-3-9/54.

b. Remove existing generator air and thrust bearing flow metering systems. Remove existing differential pressure flow metering systems. Install ultrasonic flow metering systems. Remove existing flow gauge. Install digital flow gauges. Leave existing orifice plate piping in place.

c. Install generator air and thrust bearing cooling water modulation valves on discharge. See Contract drawings.

d. Remove existing generator cooling water header wooden support blocks. Replace support blocks with new support system.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)

ASME B1.20.1 (2013; R 2018) Pipe Threads, General Purpose (Inch)

ASME B16.11 (2022) Forged Fittings, Socket-Welding and Threaded

ASME B16.21 (2021) Nonmetallic Flat Gaskets for Pipe Flanges

ASME B16.34 (2021) Valves - Flanged, Threaded and Welding End

ASME B16.5 (2020) Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24 Metric/Inch Standard

ASME B16.9 (2018) Factory-Made Wrought Buttwelding Fittings

ASME B18.2.1 (2012; R 2021) Square, Hex, Heavy Hex, and Askew Head Bolts and Hex, Heavy Hex, Hex Flange, Lobed Head, and Lag Screws (Inch

SECTION 22 00 00.00 26 Page 4

Series)

ASME B18.2.2 (2022) Nuts for General Applications:

Machine Screw Nuts, and Hex, Square, Hex Flange, and Coupling Nuts (Inch Series)

ASME B18.21.1 (2009; R 2016) Washers: Helical Spring-Lock, Tooth Lock, and Plain Washers (Inch Series)

ASME B31.1 (2022) Power Piping

ASTM INTERNATIONAL (ASTM)

ASTM A105/A105M (2023) Standard Specification for Carbon Steel Forgings for Piping Applications

ASTM A123/A123M (2017) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A193/A193M (2024) Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service and Other Special Purpose Applications

ASTM A194/A194M (2024) Standard Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High-Pressure or High-Temperature Service, or Both

ASTM A269/A269M (2024) Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service

ASTM A312/A312M (2022a) Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes

ASTM A36/A36M (2019) Standard Specification for Carbon Structural Steel

ASTM A53/A53M (2024) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A576 (2023) Standard Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality

ASTM A733 (2016; R 2022) Standard Specification for Welded and Seamless Carbon Steel and Austenitic Stainless Steel Pipe Nipples

ASTM A780/A780M (2020) Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings

ASTM C534/C534M (2023) Standard Specification for Preformed Flexible Elastomeric Cellular

SECTION 22 00 00.00 26 Page 5

Thermal Insulation in Sheet and Tubular Form

ASTM E84 (2023) Standard Test Method for Surface Burning Characteristics of Building Materials

ASTM F402 (2018) Standard Practice for Safe Handling of Solvent Cements, Primers, and Cleaners Used for Joining Thermoplastic Pipe and Fittings

ASTM F436 (2011) Hardened Steel Washers

MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS

INDUSTRY (MSS)

MSS SP-110 (2010) Ball Valves Threaded, Socket-Welding, Solder Joint, Grooved and Flared Ends

MSS SP-25 (2018) Standard Marking System for Valves, Fittings, Flanges and Unions

MSS SP-44 (2019) Steel Pipeline Flanges

MSS SP-58 (2018) Pipe Hangers and Supports - Materials, Design and Manufacture, Selection, Application, and Installation

MSS SP-70 (2011) Gray Iron Gate Valves, Flanged and Threaded Ends

MSS SP-72 (2010a) Ball Valves with Flanged or Butt-Welding Ends for General Service

MSS SP-80 (2019) Bronze Gate, Globe, Angle and Check Valves

MSS SP-85 (2011) Gray Iron Globe & Angle Valves Flanged and Threaded Ends

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1910 Occupational Safety and Health Standards

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 255 (2006; Errata 2006) Standard Method of Test of Surface Burning Characteristics of Building Materials

NFPA 704 (2022) Standard System for the Identification of the Hazards of Materials for Emergency Response

UNDERWRITERS LABORATORIES (UL)

UL 723 (2020) UL Standard for Safety Test for

SECTION 22 00 00.00 26 Page 6

Surface Burning Characteristics of Building Materials

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only or as otherwise designated. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 , SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Spill Prevention Plan ; G

SD-02 Shop Drawings

Shop Drawings ; G, HDC

Piping Layout Drawings ; G, HDC

SD-03 Product Data

Descriptive Literature ; G, HDC

SD-04 Samples

Tagging and Identification

SD-05 Design Data

Pipe Schedule ; G, HDC

Valve and Operator Schedule ; G, HDC

Throttling Valve Design ; G, HDC

SD-06 Test Reports

Pressure Testing Report ; G, HDC

Cooling Water Piping Test Report

SD-07 Certificates

Cleaning And Flushing Procedures

SD-08 Manufacturer's Instructions

Pressure Testing Plan ; G, HDC

SD-10 Operation and Maintenance Data

Spare Parts List ; G

SD-11 Closeout Submittals

As-Built Drawings ; G

SECTION 22 00 00.00 26 Page 7

1.4 SYSTEM DESCRIPTION

1.4.1 General

This Section contains general requirements for piping, tubing, fittings, valves, and related components and systems. If requirements differ from specification Sections governing a specific item, the item specific requirement govern.

1.4.2 Performance Requirements

The pressure ratings and materials specified represent minimum acceptable standards for piping systems. The piping systems must be suitable for the services specified and intended. Each piping system must be coordinated to function as a unit. Flanges, valves, fittings and appurtenances must have a pressure rating no less than that required for the system in which they are installed. Pressure rating of new equipment must meet or exceed the rating of the equipment being replaced.

1.5 MODULATION VALVE SYSTEM DESIGN

a. The Contractor is responsible for the selection of the modulation valve size for the generator air cooling water system and thrust bearing cooling water system. Contactor will work with the valve manufacture to select proper valve size. Submit Throttling Valve Design package to include valve pressure drop and flow coefficient CV calculations. Select valve size that allows greatest flow control accuracy. Select valve size that ensures no valve cavitation.

b. Design parameters: While operating the generator air coolers are to maintain stator temperature. The thrust bearing system is to maintain oil temperature within the thrust tub. For system temperature and flow set points see Drawing E-604. The thrust bearing and generator cooling modulation valves will be located at approximately El. 176 on the discharge of each cooling system. Cooling water is fed from the intake pool spiral case and provides the head pressure for flow. The intake pool elevation has a range between a maximum and minimum of EL. 268 to El. 257. Maximum flow for the thrust bearing cooling water is 250 gpm at the 3 inch diameter pipe inlet. Maximum flow for the generator air coolers is 1500 gpm at the 8 inch diameter pipe header inlet. Minimum required flow is 0 gpm. Cooling water temperature ranges seasonally from 36 to 72 degrees F.

1.6 DELIVERY, STORAGE, AND HANDLING

a. Materials delivered and placed in storage must be stored with protection from the weather, excessive humidity variation, excessive temperature variation, dirt, dust and other contaminants. Proper protection and care of material before, during and after installation is the Contractor's responsibility. Any material found to be damaged must be replaced at the Contractor's expense. During installation, piping must be capped to keep out dirt and other foreign matter.

b. A material safety data sheet in conformance with 29 CFR 1910 Section 1200(g) must accompany each chemical delivered for use in pipe installation. At a minimum, this includes all solvents, solvent cements, glues and other materials that may contain hazardous compounds. Handling must be in accordance with ASTM F402. Storage

SECTION 22 00 00.00 26 Page 8 facilities must be classified and marked in accordance with NFPA 704 .

Materials must be stored with protection from puncture, dirt, grease, moisture, mechanical abrasions, excessive heat, ultraviolet (UV) radiation damage, or other damage.

c. Pipe and fittings must be handled and stored in accordance with the manufacturer's recommendation.

1.7 QUALITY ASSURANCE

1.7.1 Verification of Dimensions

The Contractor must become familiar with details of the work, verify dimensions in the field, and advise the Contracting Officer (CO) of any discrepancy before performing any work. The Contractor must correct their design and installation to remedy any discrepancies to the satisfaction of the Government.

1.7.2 Drawings

a. Contract and reference drawings are intended as guidelines and for information only. In the case of discrepancies between drawings and specification requirements, the specifications must govern.

b. Shop Drawings of Contractor supplied components (gauges, valves, etc.) and Piping Layout Drawings showing new, replacement and modified piping must be submitted. Piping drawings must include a bill of materials listing all new and replacement components. The drawings must show the complete fabrication, assembly, and installation details of the piping systems, valve tagging, piping designation and their appurtenances. Drawings must show a layout of all piping systems and appurtenances such as mechanical joints, valves, local indicators, hangers, and supports including a complete list of all equipment and materials. Drawings are to clearly differentiate between new, existing or remain, and embedded components. Drawings must also show construction details such as welds and dielectric protection.

Drawings must show detail views, with appropriate tolerances and material callouts for all fabricated parts. Show weld symbols, WPS ID, and NDE methods on all welded joints.

1.7.3 Product Data

a. Submit complete, descriptive literature for all items specified under this Section. The literature must include original, legible, manufacturer's cut sheets/data sheets and specifications that clearly indicate physical construction, operation, mechanical and structural characteristics, and associated hardware, as applicable. For data sheets with extraneous data, clearly indicate which data applies by crossing out other models, or circling or highlighting the correct options. Submit with shop drawings showing the component, or piping layout drawings containing the component.

b. Product data must clearly show conformance with these specifications, including, but not limited to: product manufacturers' declarations of conformance to applicable technical standards.

1.7.4 Pipe Schedule

Submit pipe schedule including a list of piping systems, pressure ratings

SECTION 22 00 00.00 26 Page 9 and source of supply for each piping system broken out by material, size and application. Include a list of any special tools necessary for each piping system and appurtenances furnished for adjustment, operation, maintenance and disassembly of the system. Submit with associated piping layout drawing.

1.7.5 Valve and Operator Schedule

Submit a valve and operator schedule . The schedule must contain a list of valves, valve materials, pressure ratings, valve operator's type, materials, source of supply, and reference identification. Include a list of any special tools necessary for each valve type and appurtenances furnished for adjustment, operation, maintenance and disassembly. Submit with associated shop drawing.

1.8 PROJECT/SITE CONDITIONS

1.8.1 Existing Conditions

Verify existing piping and penetrations. Prior to ordering materials, expose all existing pipes which are to be connected to new pipelines.

Verify the size, material, joint types, elevation, horizontal location, and pipe service of existing pipes, and inspect size and location of structure penetrations to verify adequacy of wall sleeves, and other openings before installing connecting pipes.

1.8.2 Connection to Existing Equipment

All new piping must be compatible with the existing piping. Provide new materials, including gaskets and hardware (bolts, nuts, studs, and washers), where the new piping connects to existing. Any damage caused to existing piping that will remain in service must be repaired at no cost to the Government.

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

2.1.1 Materials

a. Materials and equipment must conform to the requirements of these specifications. When materials and equipment are specified to be replaced in kind, at minimum they must be of equal design as existing equipment being replaced, unless specified otherwise. Materials differing in minor respect from that specified may be proposed, provided such differences are clearly stated.

b. Any materials required which are not covered in the drawings or these specifications must conform to applicable specifications. In cases where material is not covered by one of the listed specification groups, the Contractor must furnish the highest commercial grade of material or product available.

2.1.2 Standard Products

Provide material and equipment which are the standard products of a manufacturer regularly engaged in the manufacturing of the products and that essentially duplicate items that have been in satisfactory use for at least two years prior to bid opening. Nominal sizes for standardized

SECTION 22 00 00.00 26 Page 10 products must be used.

2.1.3 Identification and Tagging

a. Each piece of pipe must bear the ASTM designation and all other markings required for that designation. Submit for approval examples of Tagging and Identification . Submit labeling and tagging examples.

For pipes 3/4 inch and larger identify on pipes the flow direction.

Use labels with black lettering and flow arrows on a yellow background. The labels will adhere tightly and neatly on the pipe.

Any labels that do not adhere completely must be removed and reapplied. Letter and arrow size must comply with the schedule below:

Outside Diameter of Pipe of Covering

Minimum Size of Letter

Minimum Length of Arrow Marker mm (in.) mm (in.( mm (in.)

(0.75-1.25) (0.5) (4)

(1.5-2.0) (0.75) (4)

(2.5-6.0) (1.25) (7)

(8.0-10.0) (2.5) (7)

(10.0) (3.5) (7)

b. For piping and tubing less than 3/4 in outside-diameter identify with engraved laminated sheet plastic or anodized aluminum flow arrows and nameplates with standard Gothic lettering not less than 1/4 in ) in height similar to the nameplates used on control centers. Nameplates to be firmly attached to the piping. The markings must be applied after cleaning, painting, and insulation of the piping is completed.

Identification and direction of flow arrows to be provided on each side of walls, partitions, floors, or similar barrier which interferes with tracing a line, at all valve locations and near branch lines.

Wherever two or more pipes run parallel, the designations will be applied in the same relative location so as to be in either vertical or horizontal linearity, whichever the case may be. The markings will be located so as to be readily conspicuous at all times from any reasonable point of vantage but in no case at intervals greater than 45 ft .

c. The following markers are typical: RAW WATER-GEN COOLING and RAW

WATER-THRUST BEARING

d. Valves must be marked in accordance with MSS SP-25 and must bear an identification tag securely attached using stainless steel wire.

Identification tags must be 1.375 inch minimum diameter, made of brass, engraved laminated plastic or stamped stainless steel. The service, valve identification number, the manufacturer's name, and the valve model number must be displayed. Valve identification numbers must be coordinated with the project to match the existing valve numbering system.

SECTION 22 00 00.00 26 Page 11

2.2 BOLTS, NUTS, STUDS, AND WASHERS

a. Dimension of threaded bolts, nuts, lock and plain washers must conform to the requirements of ASME B18.2.1 , ASME B18.2.2 , and ASME B18.21.1 , respectively.

b. Unless specified otherwise: Bolts must be made from steel per the requirements of ASTM A193/A193M , Grade 8. Hex-nuts must be made from steel per the requirements of ASTM A194/A194M , Grade 2H. Washers must be made from steel per the requirements of ASTM F436.

c. Bolts, nuts, studs, and washers must be galvanized unless noted otherwise. Galvanized coatings must conform to ASTM A123/A123M .

d. Bolts, nuts, studs, and washers in contact with stainless steel surfaces must be made from stainless steel. Stainless steel bolts must be per ASTM A193/A193M , Grade B8. Stainless steel hex-nuts must be per ASTM A194/A194M , Grade 8. Stainless steel washers must be made from UNS S30400.

2.3 PIPE THREADS

2.3.1 Threaded Joints

If present, threaded joints must conform to ASME B1.20.1 . Screwed threads must be made up with lubrication applied on the male threads only.

Caulking of screwed joints to stop or prevent leakage will not be permitted. Joints must be made with Teflon tape; the Teflon tape must not wrap around the last two remaining threads of the male end of the threaded joint. Exposed threads on ferrous pipe must be coated with zinc rich paint after assembly.

2.3.2 Pipe Nipples

Pipe nipples must conform to ASTM A733.

2.4 CARBON STEEL PIPING SYSTEM

2.4.1 Carbon Steel Pipe

Black carbon steel pipe must meet the requirements of ASTM A53/A53M seamless, Grade B. Pipes must be Schedule 40.

2.4.2 Carbon Steel Joints

Carbon steel piping must be joined by welding fittings and flanges.

Fitting type and location must match existing, except where grooved joints are installed. Grooved joints and fittings, such as Victaulic, will not be allowed. Dielectric fittings or isolation joints must be provided between all dissimilar metals.

2.4.3 Carbon Steel Fittings

Fittings must be made from carbon steel.

2.4.3.1 Welding Fittings

Welding fittings must be butt-welding. Welding fittings must be forged steel, ASTM A105/A105M Class 150 conforming to ASME B16.9 , or ASME B16.11 .

SECTION 22 00 00.00 26 Page 12

Welding must be performed in accordance with the requirements of Section

40 05 13.96 26 , WELDING, PIPING.

2.4.3.2 Flanged Fittings

a. The internal diameter bores of flanges and flanged fittings must be the same as that of the associated pipe. Use slip-on welding flanges on pipe and welding neck flanges on fittings. Flanges and flanged fittings must be forged steel, ASTM A105/A105M , per the requirements of ASME B16.5 or MSS SP-44 , Class 150 with a flat face. Wall thickness of flanges must be equal to, or exceed that of the pipeline that it is installed in. For tie-in to existing flanges, field check existing flanges for non-standard bolt hole configurations and design as required to assure new pipe and flange mate properly.

b. Flange gaskets must be fiber, plastic, or other synthetic material suitable for the service. Gaskets must meet the requirements of ASME B16.5 . Nonmetallic gaskets must conform to ASME B16.21 .

Electrically isolative flange gasket kits must be used on any connection between dissimilar metals.

2.4.4 Branch Connection Fittings

Branch connection fittings must be specifically designed to be welded into steel lines. They must be of forged carbon steel construction and must meet or exceed the pressure rating and wall thickness of the line in which they are installed. The branch end must be suitable for butt welding, socket welding or threaded as needed.

2.4.5 Carbon Steel Coatings

Carbon steel piping components must be coated with corrosion resistant materials. Coatings and finishes must be 100 percent holiday free.

2.5 STAINLESS STEEL TUBING SYSTEM

2.5.1 Tubing

Tubing must be seamless and made from stainless steel TP304 or TP316 conforming to the requirements of ASTM A269/A269M or ASTM A312/A312M .

Select a wall thickness of 18 ga or thicker.

2.5.2 Fittings

All fittings must be made from stainless steel and have a pressure rating suitable for the service. Tube fittings must be compression type. Fittings must have a two-ferrule design that separates the sealing and tube gripping functions and does not exhibit torque on the tubing during installation. Each fitting must hold the tubing with a chucking action;

the fitting must provide a firm flat grip on the tubing without penetration of the tubing wall. Fittings must not twist the tubing during assembly. Fittings must provide a leak-proof seal at the rated working pressure of the tubing. All fittings must be stainless steel.

2.5.3 Flexible Stainless Steel Hose

a. Ensure flexible pipe is the bellows-type with wire braid cover and designed, constructed, and rated in accordance with the applicable requirements of ASME B31.1 .

SECTION 22 00 00.00 26 Page 13

b. Provide threaded end connections; hex-collared Schedule 40, AISI Type 316L corrosion-resistant steel, conforming to ASTM A312/A312M .

c. All flexible hose must have an inside diameter to match the line size to which it is to be connected to, minimum working pressure of the hose must be rated not lower than the system operating pressure indicated with a factor of safety of four. Provide hose that is wire-reinforced, high-pressure-type made of neoprene or Buna N.

Design fittings specifically for use with the hose selected and as recommended by the hose manufacturer. Make fittings of stainless steel and the reusable type. Maintain minimum bending radii. The hoses when installed must appear neat and not kink or have sharp bends and must not rub, bind or ride over one another through the entire motion of the operator. Protect the finished surfaces prior to installation of the flanges. The hoses when installed must have proper clearances such that additional stresses are not imposed on the hoses or their associated fittings due to expansion and contraction as a result of temperature or pressure changes. Maximum continuous hose runs must not be greater than three feet in length.

2.6 ISOLATION JOINTS

2.6.1 FLANGE CONNECTIONS

Insulated flange connections (typically for pipe three inches and larger) must prevent electrical current flow between the adjacent flanges. The insulation parts must include flange gasket, bolt sleeves, and washers.

Special flanges must be provided if necessary. All parts must be suitable for the required operating pressure, temperature, and fluid.

2.6.2 Dielectric Unions

Dielectric unions (typically for pipe three inches and smaller) must be made of two dissimilar metals that will isolate any current flow between the union and the ends must match the materials and connection type of the new or existing piping or equipment.

2.7 PIPE INSULATION

Pipe insulation material must be closed cell foam flexible elastomeric cellular pipe type insulation meeting ASTM C534/C534M type II Grade 1.

Ensure the water vapor permeability does not exceed 0.28 grain per foot per inch per hour per square foot mercury pressure difference for one inch thickness of cellular elastomer. The exterior surface must have a smooth skin. Pipe insulation must be in tubular form and must be at least one inch thick. Unless otherwise specified, insulation must have a maximum flame spread index of 25 and a maximum smoke developed index of 50 when tested in accordance with ASTM E84. Flame spread, and smoke developed indexes, must be determined by ASTM E84, NFPA 255 or UL 723 .

2.8 VALVES

2.8.1 General Requirements For Valves

Valves must include operator, handwheel, and all other accessories required for a complete operation. The valves must be suitable for the intended service, with published pressure ratings not less than the maximum pressure ratings for the system in which installed. Valves must

SECTION 22 00 00.00 26 Page 14 be the same size as adjoining pipe. Valve ends must be compatible with adjacent piping system. An operator must be sized to operate the associated valve for the full range of pressures and velocities. All the valves should be lockable, in order to comply with standard lockout/tagout requirements. Operators, actuators, and accessories must be factory mounted. Valves must be marked in accordance with MSS SP-25 . If used in an oil application, valve seats and packing must be compatible with turbine oil.

2.8.2 Factory Finishing

Valves must have an epoxy coating unless otherwise specified. The epoxy must be either a two-part liquid material or a heat-activated (fusion) material except that only a heat-activated material must apply if a valve coating is specified as "fusion" or "fusion bonded" epoxy. The epoxy coating must have a minimum seven mils dry film thickness except where it is limited by valve operating tolerances.

2.8.3 Ball Valves

Ball valves must conform to the following:

a. Ball valves must be full-bore with 1/4 turn operation. Manually operated valves must be fitted with short lever handles of galvanized steel construction.

b. Ball valves installed in copper piping must be of two-piece construction. Valves must conform to MSS SP-110 , solder joint, rated for 600 psi W.O.G. minimum. Valves must be full port and have bronze body and trim, brass ball, RTFE seat rings and packing.

c. Ball valves installed in steel piping must be three-piece construction. Valves must conform to the requirements of ASME B16.34 and MSS SP-72 . Valves must be full port, have class 150 flanges with a steel body, stainless steel ball, RTFE seat rings, and PTFE packing.

2.8.4 Globe Valves

a. Globe valves installed in copper piping must conform to the requirements of MSS SP-80 , Type 2, Class 125, solder joint. Valves must have a bronze body and a PTFE disc.

b. Globe valves installed in steel piping must conform to the requirements of MSS SP-85 , Type I or II, Class 125, bronze trim, and flanged ends.

2.8.5 Gate Valves

a. Gate valves for copper lines, unless indicated otherwise, must be bronze-body, solder joint, and must conform to MSS SP-80 , Class 125, Type 2.

b. Gate valves for steel lines, unless indicated otherwise, must be iron-body, flanged, rising stem and must conform to MSS SP-70 , Class 125, Type 1, OF.

2.8.6 Generator and Thrust Bearing Cooling Water Discharge Valves

The valves must be a globe type, class 150. The bonnet material must be

SECTION 22 00 00.00 26 Page 15

WCC steel class 150 with valve trim of stainless steel. The valves must have manual control hand wheel. The valves require actuator electronic spring return. The valve must open upon failure.

2.8.6.1 Digital Controller

Refer to Section 40 95 00.00 26 , PROCESS CONTROL for PLC requirements.

2.8.7 Operators

2.8.7.1 Manual Operator

a. The force in a manual operator must not exceed 40 pound under any operating condition, including initial breakaway. The operator must be equipped with gear reduction when force exceeds 40 pound . A position indicator must be supplied on quarter-turn valves.

b. Operators must have painted handwheels. Lever operators are allowed on quarter-turn valves eight inch and smaller. Cranks must be supplied on gear type operators. Valve handles must be capable of padlocking, and wheels must be lockable with a chain and padlock.

2.9 PIPE SUPPORTS

2.9.1 Pipe Supports, General

a. Provide auxiliary steel where the support of piping systems and equipment is required between building structural elements. Light gauge and structural steel shapes must conform to the requirements of ASTM A36/A36M. The Contractor has the option to use pre-engineered support systems. However, a mixture of support system manufacturers products is not permitted. Pipe supports must conform to the requirements of MSS SP-58 . Where pipe supports contact bare piping or in-line devices, provide supports of compatible material so that neither must have a deteriorating action on the other.

b. For copper piping, clamps or any item touching the copper piping must be copper or brass or must be rubber insulated. If plastic insulators are used they must have a very slight clearance to the copper pipe to allow minor sliding motion of the pipe in the sleeve.

Only synthetic insulators must be used with good weather and UV resistance, such as polyurethane, Fluoro-Elastomer FKM, or EPDM.

Natural rubber or NBR (Nitrile) must not be used.

c. Provide pipe support systems which are corrosion resistant.

Provide piping with coatings for corrosion, abrasion and electrolytic resistance per MSS SP-58. Or coat pipe supports per Section 09 90 00.01 26 Paints and Coatings.

2.9.2 Hanger Types

All hanger types are per Figure A1 of MSS SP-58 .

a. Prohibited Types: Support Types 5, 12, and 26 are not permitted to be used.

b. C-Clamps: Only Type 19 and Type 23 C-clamps are permitted. Use manufacturer furnished locknuts and retaining devices. Field fabricated C-clamps or retaining devices are not acceptable.

SECTION 22 00 00.00 26 Page 16

c. Hangers: All hanger types, except those listed above are acceptable. Type 24 may only be used on trapeze hanger systems or on fabricated frames.

d. Horizontal Pipe Supports: Space horizontal pipe supports as specified in MSS SP-58 and install a support not over one foot from the pipe fitting joint.

2.9.3 Beam Clamps

For upper attachments on structural steel, provide beam clamps of ASTM A36/A36M carbon steel and MSS SP-58 Types 19 and 23 C-Clamps. Use type 20 attachments on angles and channels. Holes drilled in structural steel for hanger support rods will not be permitted. Clamps must be provided with hardened steel cup-point set screws and lock-nuts for anchoring in place. Clamp size selection must only be based on the support of the required load.

2.9.4 Riser Clamps

Vertical runs of piping must be supported at each floor, or closer where required, with ASTM A36/A36M carbon steel clamps bolted around pipes and attached to the building construction.

2.9.5 Brackets

Where piping is run adjacent to walls or steel columns, provide welded ASTM A36/A36M steel brackets, pre-punched with a minimum of two fastener holes.

2.9.6 Offset Pipe Clamp

Where pipes are indicated as offset from wall surfaces, supply a double-leg design two-piece pipe clamp.

2.9.7 Racks

Multiple pipe racks or trapeze hangers must be fabricated from ASTM A36/A36Msteel, and designed to suit the conditions at the points of installation. Pipes must be kept in their relative positions to each other by the use of clamps or clips. Pipelines subject to thermal expansion must be free to slide or roll.

2.9.8 Hangers

Hangers must be fabricated of ASTM A36/A36M carbon steel and must be MSS SP-58 Type 24. All hangers must be of a uniform type and material for a given pipe run and application. Coated or plated hangers must be used to isolate steel hangers from dissimilar metal tube or pipe. Hangers for pipe sizes two and a half inch or larger must incorporate a means of vertical adjustment after erection while supporting the load.

2.9.9 Hanger Rods

Hanger rods must be carbon steel conforming to ASTM A576. The diameter of the rods for piping system support must conform to ASME B31.1 .

SECTION 22 00 00.00 26 Page 17

PART 3 EXECUTION

3.1 GENERAL

3.1.1 Functionality During Construction

All headers must remain fully functional following this work. Any damage done to the headers, structure, or other equipment to be re-used, left in service, or turned over to the Government must be repaired at the Contractor's expense. Touch up any paint on any surfaces damaged during this work.

3.1.2 Coordination With Other Work

The piping and systems must be installed in the most direct manner so that interferences must be avoided. If interferences develop, the Contractor must submit the problem for a decision as to which work must be relocated;

and the work must be relocated. Structural portions of the Powerhouse must not be cut or weakened to install the piping, modulation valves, and accessories, except where indicated.

3.2 FIELD VERIFICATION

After becoming familiar with all details of the work, verify all dimensions in the field, and advise the CO of any discrepancy before performing the work.

3.3 DRAWINGS

a. Reference drawings are limited and not available for all areas of work. Reference drawings are intended as guidelines and for information only, respectively. In the case of discrepancies between drawings and specification requirements, the specifications must govern. Contractor to notify the COR of any discrepancies.

b. Shop Drawings of Contractor supplied components (piping, valves, etc.) and Piping Layout Drawings showing new, replacement and modified piping must be provided. Piping drawings must be integrated with existing piping drawings. Piping drawings must include a bill of materials listing all new and replacement components. Submit at least 60 calendar days prior to purchase, fabrication or site work/installation, whichever comes first.

c. Submit for approval As-Built Drawings . Refer to 01 78 23.00 25 OPERATION AND MAINTENANCE DATA and 01 78 39.00 25 PROJECT RECORD

DOCUMENTS.

3.4 PREPARATION

3.4.1 Protection

Prior to and during installation, the pipe, valves, fittings, flexible stainless steel hose, and related materials must be kept clean and handled to prevent injury to these materials as well as the finished materials.

Openings on pipe, hose couplings, valves and related materials must be tightly covered with caps or plugs during installation to prevent entry of foreign material. Pipe, hose, and related materials must be covered and protected against dirt, water, and chemical or mechanical injury.

SECTION 22 00 00.00 26 Page 18

3.4.2 Damaged Coatings

Repair damaged coating areas in the field per the requirements of Section 09 90 00.01 26 , PAINTING AND COATINGS. Do not install damaged piping materials. Field repair of damaged and uncoated areas of galvanized piping must conform to ASTM A780/A780M .

3.5 DEMOLITION OF EXISTING EQUIPMENT

The removed piping must become the property of the Contractor. Dispose of the piping in a manner that complies with all National and local regulations.

3.5.1 Existing Unit 1 Modulation Valve System

Remove the existing control valve system on Unit 1. The valve is located at the generator floor elevation within the pipe trench. Install new pipe to restore to original condition.

3.6 INSTALLATION

3.6.1 General Installation

All equipment must be properly installed, completely interconnected, and placed in working order. Where two or more items of the same type of equipment are required, they must be the product of the same manufacturer. Piping and appurtenances must be installed in conformance with reviewed shop drawings, manufacturer's instructions and ASME B31.1 .

3.6.2 Installation Alignment

To the degree possible piping must be run along the alignment shown on reference drawings or follow the original installation path with a minimum number of joints. The pipe alignment must be such that there will be no perceptible bends or kinks. Piping must be installed without springing or forcing the pipe. Misalignment will be cause for rejection, and rework of the piping sections involved will be required.

3.6.3 Workmanship

a. Workmanship must be of the best quality throughout and in accordance with the best standard practice for the type of system installed, notwithstanding any omissions in the drawings or specifications.

b. Pipe must be cut accurately to measurements established at the structure and must be installed without inducing stress into valves or fittings. Pipe must have the burrs removed by reaming and must be cut into proper lengths by the use of a wheel type mechanical cutting tool or other approved device. Piping, valves, and fittings which have not been sealed at the factory must be thoroughly cleaned with a solvent-soaked cloth or pipe brush prior to installation.

3.6.4 Welders and Welding

Welding procedures and welders must be qualified and performed in accordance with Section 40 05 13.96 26, WELDING, PIPING. Randomly inspect 25 percent of weld performed in accordance to 40 05 13.96 26 WELDING, PIPING.

SECTION 22 00 00.00 26 Page 19

3.6.5 Solder Joints

In making soldered joints, the ends of the tube must be cut square, with all burrs removed and the ends thoroughly cleaned with emery or steel wool for a distance equal to the length of the fitting socket. Tubing and fittings must be clean and bright with no dark spots. The tubing must be firmly seated in the fitting socket, which must be rotated several times to ensure even distribution of the flux. Fittings must be preheated, and then evenly heated while solder is fed into the joint until it appears around the end of the fitting at the tubing circumference. Care must be taken to prevent annealing of the tubing and fittings when making the connections. No Lead solder is permitted on project, must use NSF safe high quality No Lead Tin based solder.

3.6.6 Flexible Pipe Connections

When soldered piping mounted to concrete, transitions to being mounted to the generator frame, a flexible connection must be used. These type of connection must be located in an accessible area in case replacement is required.

3.6.7 Piping Equipment/Component Installation

Piping components and indicators must be installed in accordance with manufacturer's instructions. Required upstream and downstream clearances, isolation valves, and miscellaneous devices must be provided for an operable installation. The upstream and downstream lengths of undisturbed piping must be in accordance with flow indicator manufacturer's recommendations.

3.6.8 Pipe Flanges

Pipe flanges must be set level, plumb, and aligned. Flanged fittings must be installed true and perpendicular to the axis of the pipe. The bolt holes must be concentric to the centerline of the pipe. Pipe flanges that are misaligned or installed under stress will not be accepted and will be required to be reworked by the Contractor at no additional cost to the Government.

3.6.9 Valve Locations

Valves must be located and oriented to permit easy access to the valve operator, and to avoid interferences.

3.6.10 Pipe Tap Connections

Taps to pipe barrels are unacceptable. Taps to steel piping must be made only…