Watts 957Z-QT-FS 4 - Part of the 957 Series ground-shipping This pressure relief valve has

This pressure relief valve has a 1 1/4 inch NPTF female inlet and outlet and a 135 psi pressure relief setpoint

two molded disc assemblies

series 152A

It has a quarter turn operation

Cast iron body construction with patented 3-part advanced epoxy coating system designed to limit both microbial induced (MIC) and exposed metal substrate corrosion

Watts 957Z-QT-FS 4 - Part of the 957 Series ground-shipping This pressure relief valve hasThis 4 inch reduced pressure zone assembly backflow preventer help stop the reverse flow of liquids due to backpressure or backsiphonage, where potential health hazard exists. This extremely compact and lighter than a traditional designed assembly is approved for horizontal Z pattern installation as long as the backflow assembly is installed in accordance with the direction of the flow arrow. This assembly consists of a stainless steel body with a