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residential and industrial applications to protect against excessive pressure in systems containing water
a lightweight plastic disc float
tear-resistant polyethylene film designed for a variety of industrial
and the drain is supplied with a standard no-hub outlet for easy installation
Watts 174A-030 1 1/4 - Part of the 174A Series ZC100F-8NH residential and industrial applications toThis 1 1 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,