Impellers

Impellers

Impellers are rotating components used in pumps, mixers, and other fluid handling equipment to impart energy to a fluid. They are typically made of metal, plastic, or composite materials and are designed to move fluid by creating a flow pattern that generates a pressure differential across the impeller blades. The impeller blades are shaped to create a specific flow pattern, with the most common designs being radial, axial, and mixed flow. Radial impellers are designed to move fluid perpendicular to the impeller shaft, while axial impellers move fluid parallel to the shaft. Mixed flow impellers combine elements of both radial and axial designs, creating a flow pattern that is a combination of both. The choice of impeller design depends on the specific application, with factors such as flow rate, pressure, and viscosity of the fluid being important considerations. Impellers are used in a wide range of applications, including water treatment, chemical processing, food and beverage production, and oil and gas production. They are also used in HVAC systems, where they are used to circulate air through a building. Impellers can be driven by an electric motor, a hydraulic motor, or a gas turbine, depending on the application. Overall, impellers are critical components in many fluid handling systems, and their design and operation are important factors in the performance and efficiency of these systems.

pumps, mixers, fluid handling, flow pattern, radial, axial, mixed flow

— Mark Anderson

CITATION : "Mark Anderson. 'Impellers.' Design+Encyclopedia. https://design-encyclopedia.com/define/impellers?E=392427 (Accessed on October 14, 2026)"