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3 1/2 inch stem
Specifications Lead Free YES Product Group WPRV UPC - 098268582338
Z645-3NH-G
while maintaining its strength for use in various demanding applications
Watts 174A 075 FS 3/4 - Part of the 174A Series Z100F-3NH 3 1/2 inch stemThis pressure relief valve has a 3 4 inch NPTF female inlet and outlet and a 75 psi pressure relief setpoint. The valve can be used for hot water space heating boiler applications to protect against excessive pressure. It features a bronze body, non metallic disc to metal seating, and test lever. Includes a nonrestrictive discharge drain line flood sensor with SentryPlus Alert technology to detect excessive water discharges from the relief valve.