5544AC07V000000000

5500 Series Rev C Pilot Operated Pressure Relief Vent With Pipe Away; 4" Inlet Size; 4" Outlet Size, Mates With Standard ASME 150# Flanged Connections; Flat Face Aluminum Body, Aluminum Cover, Aluminum Seat Ring; 18.1" - 36.0" Wc Pressure Spring Range; Fluorocarbon Elastomer (FKM) Actuator Diaphragm, Pilot Seals, And Seat; Standard: Internal Sensing,SST Pilot, Exhaust To Main Valve Outlet