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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 lead free brass body construction with 1/2 inch NPT threaded male inlet and 1/2 inch NPT threaded female (drain) outlet, and stainless steel spring. The pressure relief is set at 100 psi (6.9 bar).
1/2 In Lead Free Brass Poppet Type Pressure Relief Valve, 100 psi