Safety Relief Valve, Body Material Bronze, Inlet Type MNPT, Outlet Type FNPT, Inlet Size 2 in, Outlet Size 2 1/2 in, Factory Set Pressure 150 psi, Pressure Range 15 to 250 psi, Disc Material 316 Stainless Steel, Overall Height 15 in, Application Air and Gas Compressors and Dryers, Pressure Vessels and Pressure Piping System etc, Overall Length 2 3/4 in, Seat Material Metal, Spring Material Stainless Steel, Temp. Range -320 Degrees to 406 Degrees F, Test Lever No, Compliance ASME, Standards ASME