How does the CONVAC system prevent discharge pipeline plugging?
The operator selects a low velocity setpoint using the CONVAC input keypad. Whenever, for whatever reason, the velocity falls below the setpoint rate, the CONVAC bypass valve opens fully to assure the entry of water into the dredge system to prevent pipeline plugging. As soon as the velocity increases to a rate faster than the low velocity setpoint, CONVAC resumes normal operation.
