The automatic booster pump is one of the commonly used water pumps. The automatic booster pump first fills the pump with liquid, and then starts to work. The impeller rotates rapidly, and the blades of the impeller drive the liquid to rotate. When the liquid rotates. It relies on inertia to flow to the outer edge of the impeller. At the same time, the impeller sucks liquid from the suction chamber. In the process, the liquid in the impeller flows around the blades, and the liquid acts on the blades during the flow movement. In turn, the blades act on the liquid with a force equal to the lift force and opposite in direction. This force acts on the liquid, which the liquid gains energy and flows out of the impeller, at this time, the kinetic energy and pressure energy of the liquid increase.

When the output pressure drops or the air-driven pressure increases, the booster pump will automatically start running until the pressure balance is reached again and then stop automatically. The automatic reciprocating movement of the pump is realized by using a single air-controlled unbalanced gas distribution valve.