Differences Between Compressor And Pump. How Does A Compressor Differ From The Pump?

compressor_pump_image

Both pump and compressor are used to move fluid from one point to another point of the system though the primary working fluid of the pump is liquid whereas compressor handles gases (Liquids are generally incompressible).

compressor
Pump
The significant change in volume at end.

Fluid move without significant change in volume.
Used to move a liquid against gravity, pipe friction, etc.
It usually comes with the reservoir to store gases at low volume and give pressure energy.
Suck liquid from the lower head and deliver it to the higher head. Usually, both ends are open to the atmosphere (There are some closed pump operation, e.g. pump in Rankin's cycle).
The output of compressor usually a high-pressure container.

No priming involved
Priming involved

Read: Difference between positive displacement compressor and dynamic compressor

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