Metraflex has introduced the CVTD System Balancing Valve for use with pumps. The CVTD is three valves in one: a calibrated balance valve; a positive shut-off valve; and a center guided, non-slam silent check valve. The CVTD offers multiple turns for precise balancing, integral pressure taps, a position indicator to return valve to balanced position after shut off, fewer connections, compact size, 175 psi working pressure, and availability in sizes 2" through 12".Metraflex.