Apollo Valves 511DCDKMAA0075 Multi-Purpose Safety Relief ValvePOP Safety Valve Inlet/Outlet 1/2 x 3/4 In MNPT x FNPT Connection Material of Construction Bronze Preset Setting 75 PSI Pressure Range 5 To 300 PSI Temp Range -60 To 406 F Standards ASME Section VIII UV NB CSA CRNApollo Valves 511DCDKMAA0075 Multi-Purpose Safety Relief Valve Features: POP Safety Valve Inlet/Outlet 1/2 x 3/4 In MNPT x FNPT Connection Material of Construction Bronze Preset Setting 75 PSI Pressure Range 5 To 300 PSI Temp Range -60 To 406 F Standards ASME Section VIII UV NB CSA CRN