Bell & Gossett’s Circuit Sentry Flo-Setter valve helps save pump energy and improves coil efficiency. It’s easy to set up and features a GPM dial that doesn’t require adjustments even if pressure varies or the system is changed. The Flo-Setter maintains a set flow rate when installed next to a pipe bend or fitting. The gpm scale on the lockable handle ensures that the flow setting is simple and user-friendly. Integral P/T plugs enable verification of required differential pressure. Large flow paths offer clog-free operation and integrated pressure/temperature ports measure differential pressure and temperature. Bell & Gossett.