How is CONVAC different from the other suction relief or bypass valves?
CONVAC is a modulating bypass valve system that is designed to function full time to maintain a desired rate of production. It is an operating system. Competing suction valves systems are emergency response systems. Assuming that they are properly installed, they may provide relief from problems caused by high or low vacuum, high or low discharge pressure or perhaps, low velocity. These valves respond to solve a problem by opening a water inlet valve in the suction pipe. Nearly always, this response results in a decrease in production. Because the CONVAC system bypass valve is already partially open during normal operation, it is constantly in the process of preventing problems that might interrupt normal dredge operation. CONVAC prevents problems that emergency-response bypass valves belatedly react to solve after they occur. CONVAC does everything competing valve systems do, all the while maintaining uninterrupted, full production.
