Watts 174A 150 FS 1 - Part of the 174A Series Strata Systems NPT threaded union inlet and

NPT threaded union inlet and NPT female outlet connections

The Zurn Z164 is a primary roof drain engineered for large roof areas where high capacity

The Watts GRD-620 is a green-roof plaza area drain designed for vegetated and paved roof walkways and patio areas

It consists of a lead free brass body construction

Watts 174A 150 FS 1 - Part of the 174A Series Strata Systems NPT threaded union inlet andThis pressure relief valve has a 1 inch NPTF female inlet and outlet and a 150 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.