Cavitation, a Destructive Phenomenon
Cavitation occurs within a pump when the pressure falls below the vapor pressure of the liquid. This condition typically arises on the suction side, where reduced pressure leads to the formation of small vapor bubbles. These bubbles implode when the pressure increases, releasing shock waves that can damage impellers. The extent of this damage depends on the impeller material; stainless steel is more resistant to cavitation than bronze, and bronze is more resistant than cast iron.
Cavitation results in a decrease in flow (Q) and head (H), leading to diminished pump performance. Damage caused by cavitation is often identified during pump disassembly. Additionally, cavitation increases noise and vibrations, potentially harming bearings, shaft seals, and welds.
SPS Pumps is at your Disposal
SPS Pumps is the ideal partner for industry. We offer unrivalled technical support and in-depth knowledge of centrifugal pumps, as well as other types of pump.
Our expertise guarantees you reliable and efficient solutions tailored to your needs.
We also have a very wide range of spare parts in stock.
With SPS Pumps, you have a trusted partner committed to optimising your fluid handling systems.
Call us at +32 2 657 23 53 or send us an e-mail at info@sps-pumps.com.
The content of this webpage is inspired by and sourced from the Grundfos Pump Handbook, including the accompanying charts.
