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This 1/2 in 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 body construction with 1/2 in NPT threaded male inlet and 1/2 in NPT threaded female (drain) outlet and stainless steel spring. It is listed and certified by CSA. The pressure relief is set at 75 psi (5.2 bar).
1/2 In Lead Free Brass Poppet Type Pressure Relief Valve, 75 psi