51A84DCD2060000000

5100 Series Rev D Pilot Operated Pressure/Vacuum Relief Vent End-Of-Line; Mates With ASME 150 Flange Connection; 8" Inlet Size; Aluminum Body, 316 Stainless Steel Bolt-In Seat Ring; FEP Actuator And Pallet Diaphragms, FFKM 1 Pilot Seat; 12.1" - 18.0" wc Low Pressure Special Pilot;With Air Assist; 0.50 - 0.74 oz/in2 Weight Loaded Vacuum Pallet Configuration; Epoxy Coated Carbon Steel Weight Material; Opt-6: Internal Sensing With Pilot Exhaust To Atmosphere, Backflow Preventer, And Rotometer To Purge Pilot Sense Line; Standard Vacuum Protection Screen