55AA5DE70000000000

5500 Series Rev D Pilot Operated Pressure Relief Vent With Pipe Away; Mates With ASME 150 Flange Connection; 10" Inlet Size; 12" Outlet Size; Carbon Steel Body With 316 Stainless Steel Bolt-In Seat Ring; EPDM Actuator Diaphragm, Pilot Seat, And Pallet Diaphragms; 18.1" - 36.0" wc Pressure Spring Range; Standard: Internal Sensing With Pilot Exhaust To Main Valve Outlet And Backflow Preventer