Safety Relief Valve, Body Material Brass, Inlet Type MNPT, Outlet Type Vented, Inlet Size 1/2 in, Factory Set Pressure 100 psi, Pressure Range 0 to 200 psi, 0 BtuH BtuH, Steam Capacity (Lb./Hr.) 141 lb/hr, Disc Material Bronze, Overall Height 3 1/4 in, Overall Length 3 1/4 in, Seat Material Bronze, Spring Material Stainless Steel, Temp. Range 0 Degrees to 406 Degrees F, Test Lever Test Lever Included, Standards ASME Code UV, CRN