Definition of miniature water pump: Usually, the machine that lifts liquid, transports liquid or increases pressure of liquid, that is, the machine that converts the mechanical energy of the prime mover into liquid energy to achieve the purpose of pumping liquid is collectively called a water pump.

（Flo-2202 12v dc micro water pump ）

The general composition of the water pump is the driving part + the pump body. The pump body has two ports for inlet and outlet. Water enters from the inlet and outlet from the outlet. All pumps that use this form and are small in size and pocket-sized are called micro-pumps. , Also called micro-pump.

（Flo-2202 agricultural spray water pump ）

A water pump is a machine that conveys liquid or pressurizes liquid. It transfers the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali liquids, emulsions, suspoemulsions and liquid metals, etc. It can also transport liquids and gas mixtures. And liquids containing suspended solids. The technical parameters to measure the performance of water pumps include flow, suction, head, shaft power, water power, efficiency, etc.

(Flo-3206 micro RV water pump)

According to different working principles, it can be divided into volumetric water pump, vane pump and other types. Common positive displacement pumps are divided into diaphragm pumps, piston pumps, gear pumps, etc.; common vane pumps are divided into centrifugal pumps, axial flow pumps and mixed flow pumps.

(FP-12 gear oil pump)

Positive displacement pumps use the change in the volume of their working chambers to transfer energy; vane pumps use the interaction between rotating blades and water to transfer energy.