Performance and yields
Pumps and motors

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BM6031 V1 Article

Performance and yields


Pumps and motors

Author : Louis MARTIN

Publication date: July 10, 1999 | Lire en français

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5. Performance and yields

5.1 Minimum and maximum speeds. Influence of viscosity

Most pumps and motors are designed for a reference speed, called rated speed.

Compared to this speed, they can accept higher speeds under certain conditions. They therefore have a maximum speed.

In some technologies, proper operation is only guaranteed above a minimum speed, for example when the lift is hydrodynamic.

We're going to clarify these two notions.

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5.1.1 Problems posed by high speeds

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