Submersible motor pumps – find manufacturers and suppliers

The submersible motor pump usually works under water.

This pump is also called submersible pump, scoop pump or scoop pump. This pump is a stationary or mobile centrifugal pump. A characteristic of this pump is its ability to pump liquids containing solid particles. An example of this is waste water, which can contain solid or fibrous particles and chemicals. These pumps have a capacity of up to 2,200 litres per minute. However, the funding level is usually not very high. A float switch is often used as an accessory for level regulation or as dry-running protection.

Special features of the submersible motor pump

When these pumps are used, both the pump housing and the motor are completely flooded by the pumped material. The pump is usually installed by lowering it on a guide into the pump sump. The motor heat generated when the pump is running is dissipated via the motor housing. The motor is usually an electric asynchronous motor. All live parts must be well insulated against the environment.

There are two types of these pumps: motors filled with liquid and pumps filled with air or oil. The submersible motor pumps filled with liquid can be designed for any immersion depth. The submersible pumps filled with air or oil are suitable for diving depths of up to approximately 80 metres. They can also only be partially or temporarily covered by the pumped medium. The motor heat is therefore dissipated to the pumped medium and the motor housing is supported by forced air flow or convection during heat dissipation.
Submersible motor pumps with a cutting unit are a special type of submersible pump. They have an internal conveyor wheel with a cutting device. This enables them to crush fibrous or solid particles in order to ensure problem-free conveying.

The use of submersible pumps

Submersible pumps can be used for a wide range of applications. Some examples are:

• Use of submersible pumps in aquariums
• In the water supply these pumps are used for
  Removal of water from cisterns and wells. For narrow well pipes, multi-stage pumps with larger delivery heads and flow rates are used.
• Use of submersible pumps for the disposal of waste water
• Submersible motor pumps are used by the fire brigade - here, for example, they are used to extract extinguishing water from rivers, ponds or lakes.
• Use of submersible pumps by disaster control, e.g. for empty pumping flooded basements or warehouses as well as sewage treatment plants.
• Use in dewatering as scoop pump or dewatering pump
  Application in agriculture as irrigation pump
• Use in agriculture to convey liquid manure, which can also be mixed with litter or fodder residues. It is used, for example, for filling slurry silos or feeding biogas fermenters.
• Use as cooling water pump