Level controlled automatic priming unit for pre- and re-evacuation of individual or several centrifugal pumps.
Level controlled priming unit for effective pre- and re-evacuation of centrifugal pumps used in hazardous explosive area, e.g. on board ships. Pump start signal when pre- evacuation is completed. Effective re-evacuation due to separate installation in front of the centrifugal pump and level controlled evacuation independent from pump discharge pressure.