540BSC09C050000000

5400 Series Rev C Pilot Operated Pressure Relief Vent End-Of-Line; 12" Line Size Mates With ASME 150 Flanged Connection; Raised Face Stainless Steel Body, Weatherhood, And Seat Ring; 41.8" - 86.0" Wc Pressure Spring Range; FEP Actuator Diaphragm, FFKM 1 Pilot Seals And Seat; Opt-5: Internal Sensing With Pilot Exhaust To Atmosphere, Backflow Preventer, And Field Test Connection