What is a positive displacement pump?

asked 07 May '17, 07:56

May 7, 2017, 7:56 a.m.
KnowledgeBase's gravatar image


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Positive displacement pumps delivers a certain amount of fluid every revolution/stroke. Fluid will not slip due to very less clearances between suction and discharge parts.

Most common type of positive displacement pumps are:

  • rotary lobe pump

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  • progressing cavity pump

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  • rotary gear pump

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  • piston pump

              • piston pump
  • diaphragm pump

              • diaphragm pump
  • screw pump

              • screw pump
  • gear pump

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  • vane pump

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  • regenerative (peripheral) pump

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  • peristaltic pump

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answered 07 May '17, 08:54

May 7, 2017, 8:54 a.m.
SeamenExchangeExpert's gravatar image


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accept rate: 4%

edited 24 May '17, 03:18

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