How does a centrifugal pump work?

A centrifugal pump uses a rotating impeller to add velocity to fluid, which is then converted to pressure in the volute casing. Liquid enters axially at the impeller eye, is accelerated radially outward by the spinning vanes, exits at high velocity into the volute, and the expanding volute converts kinetic energy to pressure energy. Centrifugal pumps are the most common pump type in the process industry, handling flows from small to very large and providing continuous, non-pulsating flow.