Watts LF174A 135 FS 2 - Part of the LF174A Series ZA100F-2NH Watts 4 IN model 408-OSY-RW

Watts 4 IN model 408-OSY-RW

ZN1960-2IG

With a generous 12″ channel width

Need to seal off a channel drain end or add an outlet

Watts LF174A 135 FS 2 - Part of the LF174A Series ZA100F-2NH Watts 4 IN model 408-OSY-RWThis lead free pressure relief valve has a 2 inch NPTF female inlet and outlet and a 135 psi pressure relief setpoint. This valve can be used for hot water space heating boiler applications to protect against excessive pressure. It features a lead free copper silicon alloy 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