Described is a twin ended pump apparatus comprising: a housing; a first pump at one end of the housing, said first pump comprising an impeller driven by a rotor of an electric motor, said impeller causing a fluid to flow out of a pump chamber, said electric motor including a stator for driving said rotor, wherein said rotor is arranged on a pump chamber side of a fluid-sealed boundary separating said pump chamber from the stator; and a second pump at an opposing end of the housing.
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