Watts 174A-135 3/4 - Part of the 174A Series Z100F-4NH Diaphragm Gasket

Diaphragm Gasket

Dura-Coated Cast Iron Body with Clamp Collar: Rugged construction resists corrosion

Maximum temperature 180 degree F

It is guaranteed by Typar

threaded inlet and union outlet connections

Watts 174A-135 3/4 - Part of the 174A Series Z100F-4NH Diaphragm GasketThis 3 4 inch boiler pressure relief valve is used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment. It consists of a bronze body construction with NPT threaded female inlet and NPT threaded female outlet (drain) connections, non metallic disc to metal seating, stainless steel spring, and test lever. It resists corrosive water conditions,