Bell & Gossett 117117 Circuit Setter Calibrated Balance Valve, 3 in, Flanged, 175 lbf/sq-in, Cast Iron

The bell & Gossett circuit setter plus calibrated balance valves are a precision machined ball type triple purpose balancing instrument. They are precisely calibrated for use as a presettable balance valve, variable orifice flow meter and positive shut-off service valve. Valves are furnished with a calibrated nameplate and memory stop indicator which permits a preset to a fixed open position and then closed for service without disturbing valve setting. Valves are equipped with capped readout valves fitted with internal check valves and 1/4 in NPT tapped and plugged drain port.