52A81DFH3S0F000000-89

5200 Series Rev D Pilot Operated Pressure/Vacuum Relief Vent With Pipe Away; Mates With ASME 150 Flange Connection; 8" Inlet Size; 10" Outlet Size; Aluminum Body, Aluminum Bolt-In Seat Ring; PTFE Pilot Seat With FEP Actuator And Pallet Diaphragms; 3.2 - 15.0 psi Pressure Spring Range; 0.75 - 7.99 Oz/In2 Weight Loaded Vacuum Pallet Configuration; Stainless Steel Weight Material; Standard: Internal Sensing, Pilot Exhaust To Main Valve Outlet With Backflow Preventer; Pressure And Vacuum Flame Screens; With Special Assembly Lubricants And Check Valve For Cryogenic Service