Pump is a liquid or liquid pressurized machinery.

It transfers the kinetic mechanical energy or other external energy to the liquid, which increases the liquid energy and is mainly used for transporting liquids including water, oil, acid, alkali, emulsion, suspended emulsion and liquid metal. It can also transport liquids, gaseous mixtures containing suspended solids and liquids.

The technical parameters of pump performance are flow, suction, head, shaft power, hydraulic power, efficiency and so on.