D4549 Adjustable Relief Valve Body Material Bronze Inlet Type MNPT Outlet Type FNPT Inlet Size 1 in Outlet Size 1 in Factory Set Pressure 125 psi Pressure Range 101 to 125 psi Disc Material Bronze Overall Height 7 1/2 in Application Liquids Seat Material Bronze Spring Material 316 Stainless Steel Temp Range 0 Degrees to 450 Degrees F Test Lever No