What happens when a centrifugal pump's impeller rotates?

When a centrifugal pump's impeller rotates, it generates kinetic energy that causes the liquid to be drawn into the pump. As the impeller spins, it accelerates the fluid and transforms that kinetic energy into pressure energy, ultimately forcing the liquid outward towards the outlet. This process is fundamental to the operation of centrifugal pumps, as the rapidly rotating blades of the impeller create a difference in pressure that drives the fluid efficiently through the pump and into the discharge line.

The fluid being discharged towards the outlet is the primary functional outcome of the impeller's rotation, enabling the pump to transport liquids over various distances and heights depending on system requirements. This mechanism is crucial for applications across various industries where fluid movement is necessary.