D4511 Safety Relief Valve 1/2 x 3/4 In 250 psi

D4511 Safety Relief Valve Body Material Bronze Inlet Type MNPT Outlet Type FNPT Inlet Size 1/2 in Outlet Size 3/4 in Factory Set Pressure 250 psi Pressure Range 0 to 300 psi Disc Material Bronze Overall Height 6 1/2 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