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NSF/ANSI 359-2022

Valves for Cross-linked Polyethylene (PEX) Water Distribution Tubing Systems


This standard applies to in line-valves for use in radiant heating systems, and hot and cold water cross linked polyethylene (PEX) distribution systems which are compliant with the requirements identified in ASTM F877 for PEX tubing systems.


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NSF International [nsf]

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