Positive Displacement Pumps
Positive displacement pumps allow a wide range of liquids, slurries and foams to be transported without product degradation. Types of positive-displacement pumps are reciprocating, metering, and rotary pumps. Positive displacement pumps can be further classified as either rotary type (i.e. rotary vane pump) or reciprocating type (i.e. diaphragm pump or piston/plunger pump). Both rotary type and reciprocating type pumps operate very similar with slight differences between the two:
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Their are many different types of rotary or reciprocating type positive displacement pumps. Here is a comparison of each of the following below.
Please click here or the image below for some descriptive diagrams of how each of these positive displacement pumps differs and some example applications of each.
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