Ballast Stripping Pumps/Ejectors
In most cases ballast pumps will not be able to completely empty the ballast water tanks. In order to do this a ballast stripping unit is required.
This unit should have good priming capabilities and low NPSHr. DESMI supplies two different types of stripping pumps. One is a horizontal self-priming pump type S, and the other is a water-driven ejector.
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This ejector needs water flow from a fire pump or a general service pump, but it has no moving parts. Both choices will fulfil the requirements to the stripping of ballast tanks.
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However, the horizontal pump is able to run without any additional water - an advantage when the vessel is equipped with a Ballast Water Treatment System.
