Additional InformationANSI Z21.22|CSA 4.4|UL Listed
Marketing InformationSeries 53L pressure relief valves are used in residential applications to protect against excessive pressure on domestic storage tanks and tankless water heaters. They have a bronze body construction with NPT threaded male inlet and NPT threaded female (drain) outlet connections, stainless steel spring and test lever. ANSI Z21.22 Approved, design certified and listed by CSA and UL Listed. Pressure range 75 to 175 psi. Standard pressure setting 75 psi. Optional settings: 100, 125 and 150 psi (6.9, 8.6 and 10.3 bar) also available at 50 psi setting.