What is a major cause of pump failure during operations?

Cavitation due to insufficient water supply is a major cause of pump failure during operations because it occurs when the pressure in the pump falls below the vapor pressure of the liquid, resulting in the formation of vapor bubbles. As these bubbles travel through the pump and reach higher pressure areas, they implode, creating shock waves that can damage the pump internals, including the impeller and casing. When there isn't enough water supply, the pump struggles to maintain adequate inlet pressure, increasing the likelihood of cavitation. The damage caused by cavitation not only leads to operational failures but can also necessitate costly repairs or replacement of the pump.

While electrical failure, worn-out hoses, and improper gear selection can also lead to pump failures, they are not as frequent or as directly tied to the operational conditions under which pumps are typically used as cavitation is. Recognizing and preventing cavitation by ensuring sufficient water supply is critical for maintaining pump functionality.