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

Set pressure 145 psi

The Flat Roof Drain Scupper is designed to channel overflow water safely through parapet walls or roof edges

Copper alloy bourdon sensing element

Suitable for most wall hung boiler and combi-unit applications

70 Standard Reduced Pressure Setting-PSI 25 Strainer No Strainer Material Does Not Apply To Product Thermal Expansion Bypass No Valve Style 3-way Specification Sheet - LF26A

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.