Watts 0185131|WW0185131 - 1/2 53-075

This 1/2 inch pressure relief valve is used in residential applications to protect against excessive pressure on domestic storage tanks and tankless water heaters. It consists of a bronze body construction with 1/2 inch NPTF threaded male inlet and 1/2 inch NPTF threaded female (drain) outlet, and stainless steel spring. The pressure relief is set at 75 psi (5.2 bar).