On principle, a centrifugal pump pumps a liquid by forcing it through an impeller while giving it a rotating motion and thus an hydraulic power. A centrifugal pump hydraulic driven by a standard motor, must have at the end of the shaft a sealing system. Yet, 75% of the pumps’ failures are due to mechanical sealing.
A pumping system that does not have a dynamic sealing is thus very attractive for the users of dangerous, toxic, instable, expensive, radioactive… liquids. Amongst the totally leak proof pumps, the canned motor technology completes the “magnetic drive” technology. But the canned motor design presents crucial advantages in most applications allowing a higher level of security and reliability. It is the culmination of pumping systems research, and the safest solution allowing an absolute sealing, in accordance with the CE compliances regarding environmental pollution.
