553-6CHX-AD

5500 Series Rev D; Sales Kit For Product Code:55A36DCH00X0000000-21;Pilot Operated Pressure/Vacuum Vent With Pipe Away; 3" Inlet Size; 3" Outlet Size; 316 SST Body, 316 SST Bolt-In Seat Ring; FFKM 1 Pilot Seat, FEP Pallet Diaphragm, FEP Actuator Diaphragm; 3.2 - 15.0 PSIG Pressure Spring Range; Internal Sensing, Pilot Exhaust To Main Valve Outlet, Rotometer to Purge Pilot Sense & Discharge Lines, With Backflow Preventer For Sense Line