Model 1049 SALES PILOT KIT FOR PRODUCT CODE: PVC1E1ELA; Rev A Pilot Operated Vent Valve; Carbon Steel Body; 2" Inlet X 3" Outlet Mates With ASME 150 Flanged End Connections; EPDM Soft Seats; Option 1: Internal Sensing With Pilot Exhaust Tubed To Main Valve Outlet; EPDM Actuator Diaphragm;