What types of pumps exist

The pump is a unit composed of a drive unit and its own pump, which imparts motion energy to water. In terms of construction, we distinguish the following types of pumps:

A - Centrifugal Pumps (most common):

  • Centrifugal Cell and Standard (not self-priming): in this case, both pump and intake manifold must be primed before use
  • Self-priming with Ejector (so-called JET) - just fill the pump.
  • Fully Self-priming (SVA): low lifespan and higher energy consumption are deficiencies.

B - Spindle Pumps - transport water by turning the stainless steel screw in the rubber stator. The advantage is the high displacement of up to 80m of water column. The shortage of these pumps is a limited flow to 60l/min and a higher possibility of damaging the hydraulic part of the pump when running dry (without water).

C - Vibrating pumps - instead of an electric motor, they have an electromagnet that attracts a steel anchor, stored in rubber, to the rhythm of the mains frequency, thus pushing water into the pipeline. The advantage is the displacement up to 40m, lack of sensitivity to the ingress of dirt, maximum flow rate of 25l/min and maximum operating time of 4 hours.

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