Watts 957-OSY-GXG-FS 4 - Part of the 957 Series Z100F-8NH This pressure relief valve has

This pressure relief valve has a 3/4 inch NPTF female inlet and outlet and a 150 psi pressure relief setpoint

Low-flow bypass range 25-75 psi

Reversible clamping collar plus primary and secondary weepholes to manage seepage and maintain resilience

This 3/4 inch pressure safety relief valve is used in commercial and industrial applications for low pressure

A 4 inch no hub outlet allows for quick and easy for installation

Watts 957-OSY-GXG-FS 4 - Part of the 957 Series Z100F-8NH This pressure relief valve hasThis 4 IN lead free stainless steel reduced pressure zone assembly backflow preventer help stop the reverse flow of liquids due to backpressure or backsiphonage, where potential health hazard exists. It has OSY groove by groove gate valves that show if the valve is open or closed and prevent stem corrosion. The easy maintenance assembly consists of positive seated torsion spring check modules, bottom mounted differential pressure relief valve, FM UL