Automatic aspirator designed for the priming of centrifugal pumps where dry running is not admissible.

Pressure controlled priming unit for evacuation of centrifugal pumps used in hazardous explosive area, e.g. on board ships. Pump start signal when pre-evacuation is completed. Improved re-evacuation after break of pump delivery during pump operation due to separate installation in front of the centrifugal pump.

Automatic aspirator for evacuation of centrifugal pumps pumping clean or slightly contaminated fluids. Special design for service in explosive area.

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.