Bell & Gossett Check-Trol Flow Control Flange, Isolation, 1-1/2 inch Pipe, 150 PSI Maximum, 200 degree F, Steel, Chrome Plated, 4-7/16 inch L
The Check-Trol flange is a combination isolation valve, flow control valve, and companion flange for circulators. The ball valve allows the circulator to be removed from the system without draining the system. The internal spring check prevents gravity circulation. Free floating companion flange makes pump installation a snap.