Safety Relief Valve Body Material Brass Inlet Type MNPT Outlet Type Vented Inlet Size 1/4 in Factory Set Pressure 50 psi Pressure Range 0 to 200 psi Steam Capacity (Lb./Hr.) 79 lb/hr Disc Material Bronze Overall Height 2 7/8 in Application Air Gas or Steam Seat Material Bronze Spring Material 316 Stainless Steel Temp Range 0 Degrees to 406 Degrees F Test Lever Yes Standards ASME Section VIII / CRN