Two Valve Isolation Per VA Directive 1810 Appendix A.pdf
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- Attached to
- Z1DA--NRM | 503-19-112 Replace Steam System Project (VA-24-00009779) Federal contract opportunity
- Solicitation number
- 36C24424R0001
About this file
This document is an excerpt from VHA Directive 1810 Appendix A, which outlines requirements for two valve isolation on steam systems during maintenance and construction work. The contractor is required to ensure that two isolation valves are supplied and installed in all high pressure steam (HPS), medium pressure steam (MPS), and low pressure steam (LPS) piping that is 2 inches or larger, as well as hot water systems where the temperature is 257 degrees Fahrenheit or greater.
The document is related to Federal Contract Opportunity ID 402ce44f72ad45e5b5d7bb9a7d0742bf, Solicitation Number 36C24424R0001, for the Replace Steam System project at the Altoona VAMC. The contract will be a single, firm fixed-price construction services contract with a period of performance of 720 calendar days. The project will be competed under a tiered evaluation, with service-disabled veteran-owned small businesses (SDVOSBs) and veteran-owned small businesses (VOSBs) receiving priority consideration. The North American Industry Classification System (NAICS) code is 236220 Commercial & Institutional Building & Construction, with a small business size standard of $45 million in annual receipts.
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Text version
Two Valve Isolation Per VA Directive 1810 Appendix A, 3.F
Please note that the contractor is to ensure two isolation valves are supplied and installed in all HPS, MPS and LPS steam piping per the below description in VHA Directive 1810 Appendix A, 3.F
“Any time maintenance and construction work is performed on steam systems, two valve isolation is required (closed position) in series between the steam and the work being performed. This applies to all HP steam as well as LP steam lines 2 inches or larger and hot water systems where the temperature of the operating fluid is at or greater than 257 degrees Fahrenheit.”
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