Watts 174A 110 FS 1 1/2 - Part of the 174A Series mainline-siltfence cast iron roof drain features

cast iron roof drain features a threaded extension assembly

The grate features a perforated design and is heel-proof and ADA compliant

4 Body Material Lead Free Copper Silicon Alloy Brand Watts Buy American Act Compliant YES Corrosion Resistant Coating No Disc Material EPDM EAN 098268330076 Gauge Option No Gauge High Pressure Reduced Pressure Range Does Not Apply To Product High Pressure Reduced Pressure Setting Does Not Apply To Product Inlet Connection Size 3/4 IN Inlet Connection Type Union Female Threaded Inlet Thread Type NPT Lead Free YES Maximum Operating Temperature-Fahrenheit 180 Maximum Working Pressure-BAR 20

The pressure setting is 45 psi (3

Includes an atmospheric port that provides visual indication of failure of the second check

Watts 174A 110 FS 1 1/2 - Part of the 174A Series mainline-siltfence cast iron roof drain featuresThis pressure relief valve has a 1 1 2 inch NPTF female inlet and outlet and a 110 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.