Adjustable Relief Valve, Body Material Bronze, Inlet Type MNPT, Outlet Type FNPT, Inlet Size 1/2 in, Outlet Size 1/2 in, Factory Set Pressure 50 psi, Pressure Range 0 to 50 psi, 0 BtuH BtuH, Disc Material Bronze, Overall Height 6 in, Overall Length 6 in, Seat Material 316 Stainless Steel, Spring Material Stainless Steel, Temp. Range 0 Degrees to 450 Degrees F, Test Lever Test Lever Not Included, Standards Non-Code, Field Adjustable