Typ CNF / Typ CAM

Sealless Technology Unlimited by HERMETIC - Pump technology for CHEMICAL, PETROCHEMICAL, REFRIGERATION

HERMETIC-Pumpen GmbH

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Canned motor pumps are characterised by a compact, integrated unit without mechanical seal. The motor and pump form a unit with the rotor and the impeller fitted onto a common shaft. The rotor is guided by two identical, medium-lubricated slide bearings. The stator on the drive motor is separated from the rotor space using a thin stator liner. The rotor cavity itself, along with the hydraulic section of the pump, create a combined
cavity which needs to be filled with pumping medium before commissioning.The heat loss from the motor is carried off by a partial flow between the rotor and the stator. At the same time, the partial flow lubricates both
slide bearings in the rotor cavity. Both the can, which is a hermetically sealed component, and the motor casing are used as a safety containment. Because of that, canned motor pumps always ensure highest safety level when conveying dangerous, toxic, explosive and valuable media.