Air Safety Valve Hard Seat (M)NPT Inlet (In.) 1/2 in Preset Setting (PSI) 175 psi 363 cfm Rated CFM @ Set Pressure Max Temp (F) 400 Degrees F Brass Body Material Stainless Steel Seal Stainless Steel Ball Stainless Steel Spring Brass Seat Vibra Seal Thread Coating Standards ASME CRN NATIONAL BOARD Compressed Air Safety Relief High Temp