Pumps, Compressors, Blowers and Fans

Comparing pumps, compressors, blowers and fans

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There are some significant differences between pumps, compressors, blowers and fans which are 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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Related Topics

  • Fluid Mechanics The study of fluids - liquids and gases. Involves various properties of the fluid, such as velocity, pressure, density and temperature, as functions of space and time.
  • Gas and Compressed Air Gas properties, capacities of pipelines, sizing of relief valves - air, LNG, LPG and more
  • Ventilation Systems Systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more
  • Pumps Piping systems and pumps - centrifugal pumps, displacement pumps - cavitation, viscosity, head and pressure, power consumption and more

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