A centrifugal pump, particularly useful in the chemical industry for pumping corrosive and toxic fluids,BALANCING VALVES has all parts which are exposed to the fluids being pumped completely isolated from the pump driving mechanism without the use of wearable seals such as packings, stuffing boxes and the like and the driving mechanism is coupled to the pump mechanism by magnets. An outer housing rotatably supports a cup-shaped magnet carrying outer rotor and an inner housing carried by the outer housing rotatably supports an inner rotor telescoped inside of the outer cup-shaped rotor and coupled to a centrifugal pump impeller in a pump casing mounted on an end of the housing. The inner rotor is supported on spring-loaded corrosion resisting conical bearings wich automatically take up wear.

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2011-12-19

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