Watts 174A 135 FS 1 1/4 - Part of the 174A Series ZA100F-4NH Set pressure 145 psi

Set pressure 145 psi

Each kit includes a deep-profile polypropylene (PP) channel

ZB400I-4IG

Copper alloy bourdon sensing element

while draining excess surface water from hardscapes

Watts 174A 135 FS 1 1/4 - Part of the 174A Series ZA100F-4NH Set pressure 145 psiThis pressure relief valve has a 1 1 4 inch NPTF female inlet and outlet and a 135 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.