The volute is designed to:

The volute is designed to:

• A. Store energy
• B. Build pressure
• C. Filter debris
• D. Reduce noise

Answer: (B)

The volute is the pump casing that collects the fluid that leaves the impeller and converts the energy put into the fluid into usable pressure. As the impeller imparts velocity to the water, the volute’s spiral, expanding shape slows the flow and directs it into the discharge line. This slowing converts velocity energy into static pressure, raising the pressure the pump can deliver to the system. So its main purpose is to build pressure for the discharge. It isn’t about storing energy like in a reservoir, nor is it a filter to remove debris. Noise reduction isn’t its primary function, though design can influence noise indirectly.

The volute is the pump casing that collects the fluid that leaves the impeller and converts the energy put into the fluid into usable pressure. As the impeller imparts velocity to the water, the volute’s spiral, expanding shape slows the flow and directs it into the discharge line. This slowing converts velocity energy into static pressure, raising the pressure the pump can deliver to the system. So its main purpose is to build pressure for the discharge.

It isn’t about storing energy like in a reservoir, nor is it a filter to remove debris. Noise reduction isn’t its primary function, though design can influence noise indirectly.