Rotation Speed of Archimedes screw pumps may not exceed 108% of its ‘optimum design speed’ – if that limit is exceeded the water will be thrown out of the trough and pump efficiency will drop.
Amplify’d from www.spaansbabcock.com
Rotation Speed
Each specific pump has its own optimum speed. Spaans Babcock uses the formula of ir. Muyskens to determine the optimum speed. Although a minor variation in speed is possible, the speed may not exceed 108% of its ‘optimum design speed’ – if that limit is exceeded the water will be thrown out of the trough and pump efficiency will drop.
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