55AL4DFH0000M00000-345

5500 Series Rev D Pilot Operated Pressure Relief Vent With Pipe Away; Mates With ASME 150 Flange Connection; 6" Inlet Size; 8" Outlet Size; Aluminum Body With 316 Stainless Steel Bolt-In Seat Ring; FEP Actuator Diaphragm With PTFE Pilot Seat And FEP Pallet Diaphragms; 3.2 - 15.0 PSIG Pressure Spring Range; Standard: Internal Sensing With Pilot Exhaust To Main Valve Outlet And Backflow Preventer; Cleaned For Oxygen Service Per Cashco Specification S-1134; Special For Cryogenic Construction