More than 30 years ago, a landmark study observed a relationship between suction-specific speed and the probability of pump failure that changed the way pumps are selected. This observation created th..
More than 30 years ago, a landmark study observed a relationship between suction-specific speed and the probability of pump failure that changed the way pumps are selected. This observation created the common perception that a lower suction-specific speed value equals higher pump reliability, with a value below 11,000 established as a common benchmark for good reliability.
This perception has remained relatively unchanged, even though pump design and manufacturing methods have advanced significantly. Pump purchasers continue to rely on a specification limit that derives from one study conducted by one company several years ago. If purchasers order the wrong design or more pump than is neede
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