Pumps, Compressors, Blowers and Fans

Pumps, Compressors, Blowers and Fans

Comparing pumps, compressors, blowers and fans


A generic definition of a pump is
"A machine or device for raising, compressing, or transferring fluids."
In practice - it is common to differentiate between
  • pumps
  • compressors
  • blowers
  • fans
as summarized below:

Pumps

  • A pump is a machine for raising a liquid - a relatively incompressible fluid - to a higher level of pressure or head

Compressors

  • A compressor is a machine for raising a gas - a compressible fluid - to a higher level of pressure

Blowers

  • A blower is a machine for moving volumes of a gas with moderate increase of pressure

Fans

  • A fan moves large amounts of gas with low increase in pressure

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