Pumps are mechanical equipment used for transporting liquids or increasing liquid pressure, and are widely applied in industries such as manufacturing, construction, agriculture, water supply, and heating, ventilation and air conditioning (HVAC). According to their uses and working principles, water pumps are mainly classified into the following categories:

Centrifugal pump: The most common type of water pump, it conveys liquids by generating centrifugal force through the high-speed rotation of the impeller. It is suitable for clean water transportation, water supply systems, air conditioning circulation, fire protection systems, etc. Its features include large flow rate, simple structure and convenient maintenance.
Submersible pumps: The motor and the pump body are integrated and can be directly placed in water for operation. They are commonly used for deep well water extraction, sewage discharge, basement drainage and sewage treatment. They feature easy installation and high efficiency.
Booster pump: Mainly used to increase water pressure, it is commonly found in high-rise building water supply, household water heater pressurization and industrial pipeline pressurization systems.
Self-priming pump: It has the ability to automatically draw water and does not require frequent water filling to start. It is suitable for agricultural irrigation, ship drainage and chemical liquid transportation.
Gear pumps and plunger pumps: They are mostly used for the transportation of high-pressure or special liquids, such as oils and chemical media.

The main function of a water pump is to achieve liquid transportation, circulation, pressurization, drainage and irrigation, ensuring the stable operation of liquid systems in industrial production and daily life. It is a key device in fluid transportation systems.