Amendment_0006_Valve_Replacement.pdf
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- Replace Primary Potable Water Pumps 1&2 Which Provides Water to the South Rim - Indian Garden
- Solicitation number
- 140P2018R0105
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Amendment 0006_Valve Replacement
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Valve Replacement
This addendum includes replacing two existing valves in the South Pump House to facilitate construction. These valves are the North Pump House Isolation Valve and the 8” TCWL Borehole Isolation Valve. Locations of these valves are shown on the attached, edited Sheet D2 from the final CD package. In addition, attached is an installation detail.
Furnish, and install in the manner depicted in Figure A, two (2) gate valves specified within the Contract Documents and as supplemented below. The valves shall be class 900 valves with single valve by-pass, Class 900# RF, WCB Body, API Trim 5 Full Stellite, Bolted Bonnet, OS&Y, Hand Wheel Operated Gate Valve.
Gate Valves
Acceptable Manufacturers
1. Cameron/Newco.
2. Bonney Forge.
3. Or approved equal.
Materials
1. Body and Wedge: Cast Steel, ASTM A216-WCB
2. Coating/Lining: Epoxy, NSF 61 certified.
Design Requirements
1. Style: ASME B16.34/API 600 and ASME B16.10
2. Connections: ASME B16.5, Raised Face Flanges
3. Pressure Class: ANSI 900
4. Testing: API 598
5. Mounting Orientation: Vertical.
Accessories
1. Actuator: Handwheel, OS&Y, rising stem, stuffing box stem seal.
2. Bypass: Welded, factory installed.
a. Minimum size: 3/4-IN
b. Install bypass such that the stem of the main valve and bypass valve are parallel.
c. Bypass components and materials shall be rated for the same service as the main valve.
Attachments:
Figure A – Valve Installation Detail Sheet D2 (edited)
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