Self-priming pump is a pump that can autonomously draw in liquids when there is no natural drainage. They are also known as automatic suction pumps or self-priming centrifugal pumps.
A centrifugal pump is a pump that operates based on centrifugal force. It is mainly composed of basic components such as the pump casing, impeller, shaft, bearings, and sealing device. The impeller rotates to generate centrifugal force, which causes the liquid to be discharged from the center to the periphery, thereby achieving the transportation of the liquid.