Safety Relief Valve, Body Material Cast Iron, Inlet Type FNPT, Outlet Type FNPT, Inlet Size 2 1/2 in, Outlet Size 2 1/2 in, Factory Set Pressure 15 psi, Steam Capacity (Lb./Hr.) 4,501 lb/hr, Disc Material Bronze, Overall Height 8 1/4 in, Application Steam, Overall Length 3 1/2 in, Seat Material Brass, Spring Material Steel, Temp. Range 0 Degrees to 250 Degrees F, Test Lever Yes, Compliance Section IV Steam, Standards ASME Code Section IV