Impellergröße

Impellergröße refers to the physical dimensions of an impeller, a rotating component with vanes or blades used to impart motion to a fluid. This size is a critical factor in determining the performance characteristics of pumps, turbines, and other fluid machinery. Key dimensions typically include the impeller diameter, width, and the geometry of the vanes themselves, such as their angle and profile.

The diameter of an impeller significantly influences the fluid velocity it can generate. A larger diameter generally results in higher flow rates and head (pressure) for a given rotational speed. The impeller width affects the volume of fluid that can pass through the impeller per unit time. Narrower impellers are often used for high-head, low-flow applications, while wider impellers are suited for low-head, high-flow scenarios.

Vane geometry also plays a crucial role. The number, shape, and angle of the vanes are designed to efficiently transfer energy from the rotating impeller to the fluid, minimizing energy losses due to turbulence or recirculation. Different impeller types, such as open, semi-open, and closed impellers, are characterized by their construction and how the vanes are supported, which in turn impacts their suitability for handling different types of fluids and operating conditions. Selecting the appropriate impellergröße is essential for optimizing efficiency, achieving desired performance, and ensuring the longevity of the equipment.