A pump is a mechanical device used to transfer different fluids from one location to another. It is a hydraulic device that lifts fluid from a low level to a high level and moves fluid from a low pressure area to a high pressure area. Pumps deliver fluids by converting the mechanical energy of the fluid into pressure energy (hydraulic energy).

Hydraulic pumps can also be used for processes that require high hydraulic pressure. Can be observed with heavy equipment. In general, heavy equipment requires lower suction pressure and higher discharge pressure. The low pressure on the inlet side of the pump causes the liquid to rise from a specific depth, and the high pressure on the outlet side pushes the liquid to the desired head.

Pumps work in a similar way to compressors. The main difference between them is that they use different working fluids.