Twinkle Company

The answer to the questions is a CONVAC system. More than just an emergency suction relief valve or suction bypass, the CONVAC system is a suction side production tool for hydraulic dredges. Instead of merely flying open to admit water into the suction in response to a setpoint, the CONVAC system has a "modulated" response. "Modulating" means that the system makes small corrections, and opens the bypass valve only as needed to maintain the desired production rate.

Introduced in 1993, the original CONVAC system revolutionized suction side controls for hydraulic dredges. 16 years later the CONVAC S4 with LNV continues the innovative tradition with improved controls, automatic Cavitation Killer and the LNV bypass valve.