D4516 Safety Relief Valve Body Material Bronze Inlet Type MNPT Outlet Type FNPT Inlet Size 2 in Outlet Size 2 1/2 in Factory Set Pressure 200 psi Pressure Range 0 to 300 psi Disc Material Bronze Overall Height 11 1/8 in Application Air Gas Seat Material Bronze Spring Material 316 Stainless Steel Temp Range 0 Degrees to 406 Degrees F Test Lever No Standards ASME Section VIII / CRN