Air Safety Valve Soft Seat (M)NPT Inlet (In.) 3/4 in Preset Setting (PSI) 50 psi 231 cfm Rated CFM @ Set Pressure Max Temp (F) 250 Degrees F Brass Body Material Silicone Seal Stainless Steel Spring Brass Seat Silicone O-Ring Standards ASME CRN NATIONAL BOARD Compressed Air Safety Relief Standard / High Flow