52AB5DVL2000000000

5200 Series Rev D Pilot Operated Pressure/Vacuum Relief Vent With Pipe Away; Mates With ASME 150 Flange Connection; 12" Inlet Size; 14" Outlet Size; Carbon Steel Body, 316 Stainless Steel Bolt-In Seat Ring; Fluorocarbon Elastomer (FKM) Actuator Diaphragm, Pilot Seat, And Pallet Diaphragms; 1.2" - 2.0" 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; Standard: Internal Sensing With Pilot Exhaust To Main Valve Outlet And Backflow Preventer; Standard Vacuum Protection Screen