The Importance of Impeller Design and Best Efficiency Point

The Importance of Impeller Design and Best Efficiency Point

Understanding factors that determine pump performance.

If you work with electric motors and pumps, you’ll eventually encounter a pump curve and one of its key parameters — best efficiency point (BEP). The BEP is the point on the curve where the pump operates most efficiently. Unique to each pump, the BEP is a product of both impeller design and several related pump curve parameters.

Pump efficiency

Electric motor efficiency varies with load and peaks at about 75% of full load. Pump efficiency is more complex, as it var

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