What does the casing of a centrifugal pump primarily do?

The casing of a centrifugal pump primarily serves to house the impeller. The impeller is a critical component of the pump that rotates to impart energy to the fluid, allowing it to move through the pump and into the piping system. The design of the casing is crucial not only for enclosing the impeller but also for providing a smooth flow path for the fluid, minimizing turbulence, and enhancing the hydraulic efficiency of the pump.

The casing also helps in containing the pressure generated by the impeller as it generates flow and pressure, ensuring that the pump operates effectively and efficiently. It is an integral part of the pump’s overall structure, ensuring that the forces created by the rotating impeller are managed properly.