Measures to Improve the NPSH Performance of the Centrifugal Pump Itself


Published:

Dec 26,2023

The dangers of cavitation corrosion:Component damage (cracks, holes, etc.);Performance degradation (lift, efficiency 1);Noise and vibration (seals, bearings).

Measures to Improve the NPSH Performance of the Centrifugal Pump Itself

When the centrifugal pump is running, when the pressure pK near the impeller blade inlet is less than the saturated vapor pressure pv at the liquid delivery temperature, the liquid vaporizes, condenses, and impacts, forming high-pressure, high-temperature, and high-frequency impact loads, causing mechanical damage to metal materials. The combined phenomenon of spalling and electrochemical corrosion damage is called cavitation.

The dangers of cavitation corrosion:Component damage (cracks, holes, etc.);Performance degradation (lift, efficiency 1);Noise and vibration (seals, bearings).

Keyword:

NPSH Design