5100 Series Rev D Pilot Operated Pressure/Vacuum Relief Vent End-Of-Line; Mates With ASME 150 Flange Connection; 10" Inlet Size; Carbon Steel Body, 316 Stainless Steel Bolt-In Seat Ring; Fluorocarbon Elastomer (FKM) Actuator Diaphragm, Pilot Seat, And Pallet Diaphragms; 41.8" - 86.0" wc Pressure Spring Range; 0.75 - 7.99 oz/in2 Weight Loaded Vacuum Pallet Configuration; Stainless Steel Weight Material; Opt-5: Internal Sensing With Pilot Exhaust To Atmosphere, Backflow Preventer, And Field Test Connection; Standard Vacuum Protection Screen