Safety Relief Valve, Body Material Bronze, Inlet Type MNPT, Outlet Type FNPT, Inlet Size 3/4 in, Outlet Size 1 in, Factory Set Pressure 250 psi, Pressure Range 0 to 150 psi, Disc Material PCTFE, Overall Height 6 13/16 in, Application Air, Gas, Overall Length 2 1/2 in, Seat Material Brass, Spring Material 302 Stainless Steel, Temp. Range -320 Degrees to 150 Degrees F, Test Lever No, Compliance Section VIII Air/Gas, Standards ASME