55HJSC06C040000000

5500 Series Rev C Pilot Operated Pressure Relief Vent With Pipe Away; DN 50 Inlet Size; DN 80 Outlet Size, (PN16) Din Flange Connections; Raised Face SST Body & Cover, SST Seat Ring; 12.1" - 18.0" Wc Pressure Spring Range; FEP Actuator Diaphragm, FFKM 1 Pilot Seals And Seat; Opt-4; Internal Sensing,SST Pilot, Exhaust To Main Valve Outlet;With Backflow Preventer