Zero Leackage:
The canned motor pump is the safest pumping solution for all types of liquids:

  -Dangerous
  -Toxic
  -Volatile
  -Smelling
  -Radioactive
  -Expensive

The canned motor pump characterized by no shaft sealing is a solution completely leakage-free, duly in compliance to the recent EC directive concerning the reduction of environmental pollution.

The “Canned Motor” is the most vital part of the “canned motor pump”. The two main parts of the motor, the stator and the rotor, are separated from each other by a thin-walled pipe, the can, slipped into the gap between them.
The impeller is mounted directly on the rotor of the motor.
The rotor rotates into the pumped liquid, supported by two medium-lubricated slide bearings.

The can, as developed by Rütschi, is welded at both ends to the bearing supports and the can flange.

This prevents the pumped fluid from entering the stator.

The can is easily changeable and this is of great advantage in enabling the reequipment with other materials of construction or for quick repair of the stator winding.