Safety Relief Valve, Body Material Bronze, Inlet Type MNPT, Outlet Type FNPT, Inlet Size 1 in, Outlet Size 1 1/4 in, Factory Set Pressure 125 psi, Pressure Range 0 to 300 psi, Disc Material Bronze, Overall Height 7 1/2 in, Application Air, Gas, Seat Material Bronze, Spring Material 316 Stainless Steel, Temp. Range 0 Degrees to 406 Degrees F, Test Lever No, Standards ASME Section VIII / CRN