There are many different varieties of pumps used in the industries. They are as listed below:

  1. Centrifugal pump
  2. Positive displacement pump
  3. ANSI process pump
  4. API process pump
  5. Axial flow pump
  6. Booster pump
  7. Canned motor pump
  8. Chopper pump
  9. Circulator pump
  10. Cryogenic pump
  11. Drum pump
  12. End suction pump
  13. Fire pump
  14. Grinder pump
  15. Horizontal split-case pump
  16. Jet pump
  17. Magnetic drive pump
  18. Multistage pump
  19. Regenerative turbine pump
  20. Slurry pump
  21. Self-priming pump
  22. Submersible pump
  23. Trash pump
  24. Vertical sump pump
  25. Vertical turbine pump
  26. Well pump
  27. AODD pump
  28. Concrete pump
  29. Diaphragm pump
  30. Flexible impeller pump
  31. Gear pump
  32. Lobe pump
  33. Metering pump
  34. Peristaltic pump
  35. Piston pump
  36. Plunger pump
  37. Progressive cavity pump
  38. Screw pump
  39. Vane pump

We will discuss in this post about 2 common types of Sanitary Pumps.

Centrifugal pump

  • Basic description

This is general name for the pumps having one or more number of impellers. They can be configured based on their applications.

  • Key features

There can be one impeller or more too. Casing can be diffuser or volute type. Usually, it will be driven by electric motor, but other types of drive are also available.

  • Application

All kinds of liquids are pumped by these centrifugal pumps. Can achieve highest flow rates as compared to all pump types. It can handle dirty or clean liquids, and also liquid with low viscosity.

  • Advantages

For lower of lower viscosity, it can be best pump choice that can also achieve high flow rates. You cannot find any pulsation that are often found in few positive displacement pumps.

Positive displacement pump

  • Basic description

This type of pump does not have their impellers, but relies on its rotating/reciprocating parts, in order to directly push all the liquid in enclosed volume, till enough pressure will be built up for moving the liquid into discharge system.

  • Key features

Pump will work on principle of positive displacement, either reciprocating or rotary.

  • Application

All kinds of services in different industries where such positive displacement pumps can be preferred over centrifugal pumps because of shear sensitive solids, high viscosity or need for high pressure and low flow.

  • Advantages

For higher viscosity liquids, it is best choice, and can move liquids gently. Also, suitable for low flow with high pressure combination.