Cavitation of the pump resulting in pump damage

Entrapped air in hydraulic systems leads to the phenomenon of cavitation in pumps.

The phenomenon of cavitation is the formation of gaps or voids in a fluid flow creating high local fluid velocity which causes damage on the surface of components such as gear teeth, vanes, and pistons leading to premature pump failure. Because of entrapped air in the pump, the oil tends to get covered with foam.

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