51A46DC32S60000000

5100 Series Rev D Pilot Operated Pressure/Vacuum Relief Vent End-Of-Line; Mates With ASME 150 Flange Connection; 4" Inlet Size; 316 Stainless Steel Body, 316 Stainless Steel Bolt-In Seat Ring; FEP Actuator And Pallet Diaphragms, FFKM 1 Pilot Seat; 2.1" - 12.0" wc Pressure Spring Range; 0.50 - 0.74 oz/in2 Weight Loaded Vacuum Pallet Configuration; Stainless 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