What is the name of the area in a centrifugal pump that converts water energy from velocity to pressure?

The volute is the part of a centrifugal pump designed to convert the kinetic energy of water, which is created by the impeller, into pressure energy. As water exits the impeller, it is moving at high velocity. The volute gradually widens, allowing the water to slow down as it moves through this section of the pump. This reduction in velocity results in an increase in pressure, which is essential for delivering water efficiently to the discharge pipe and ultimately into the system it serves.

Understanding the function of the volute is crucial for recognizing how centrifugal pumps work. While the impeller is responsible for adding energy to the water and the diffuser also plays a role in energy conversion, the volute specifically fulfills the crucial task of transforming the speed of the fluid into pressure. The inlet serves as the entry point for water into the pump but does not directly contribute to the conversion of velocity to pressure in the same way the volute does.