1, according to the working principle and structure of the pump points: vane pumps, positive displacement pumps (and other types of pumps) such as: jet pump, air pump, electromagnetic pump and other vane pumps such as: centrifugal pump, Pumps, axial flow pumps and other positive displacement pumps such as: reciprocating pumps, rotor pumps two reciprocating pumps: electric pumps, steam pumps Electric pumps: Plunger (piston) pumps, diaphragm pumps, metering pumps Rotor pumps: gear pumps, Screw pumps, Roots pumps, vane pumps, etc. 2, according to the media points: water pumps, sewage (dirt) pumps, pumps, corrosion pumps, etc .; 3, from the use of installation on the points: pipeline pump, Submersible pumps and so on.
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