Comprehensive Guide to Pump Classification for Water Treatment


Water pumps play a crucial role in the transportation of fluids during water treatment processes, supplying energy to overcome resistance and maintaining a steady flow in equipment or pipelines. Additionally, chemical agents often need to be transferred from one tank to another, from a lower level to a higher one, during water treatment. All these tasks rely on the functionality of water pumps. Therefore, selecting pump products wisely and understanding the technological trends in water treatment pumps becomes a crucial aspect of water treatment operations.

Categories of Water Treatment Pumps:

Within the water treatment industry, a multitude of pump equipment is applied, making it challenging to broadly categorize them under a single classification method. Typically, pumps are classified based on practical needs using various methods. Below is a brief overview:

Classification Based on Transported Medium:

  • Single-phase medium transport pumps
  • Two-phase medium transport pumps
  • Multiphase medium transport pumps

Blade Types in Water Treatment Pumps:

  • Single-stage pumps
  • Multi-stage pumps
  • Double-suction pumps
  • Mixed-flow pumps
  • Axial-flow pumps
  • Submersible pumps
  • Submersible sewage pumps
  • Screw pumps
  • Metering pumps
  • Plunger pumps
  • Screw pumps
  • Ejector pumps

Classification Based on Working Principles:

  • Blade Pumps:
    • Utilize the interaction between blades and liquid to transport fluids, including centrifugal pumps, mixed-flow pumps, axial-flow pumps, and vortex pumps.
  • Positive Displacement Pumps:
    • Use the periodic variation of chamber volume to transport liquids, including piston pumps, plunger pumps, diaphragm pumps, gear pumps, sliding vane pumps, and screw pumps.
  • Other Pump Types:
    • Water wheels that change the potential energy of the liquid; Pumps that use liquid energy to transport fluids, such as jet pumps, water hammer pumps, and acid egg pumps.


Understanding these classifications is essential for making informed decisions in water treatment pump selection. It ensures optimal performance and efficiency in various water treatment processes. Stay updated on the latest trends in pump technology to enhance the effectiveness of water treatment operations.

Xi’an CHIWATEC Water Treatment Technology is a high-tech enterprise specialized in various water processing devices. Aside from these individual products, which cover a number of types and series, we can also help with related comprehensive engineering projects. Thanks to our hard work and dedication upon our founding, we are now one of the fastest-developing water treatment equipment manufacturers in Western China.

Further reading

CDL8-20 high pressure pump

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