Lack of control of the environment is often pinpointed as a cause of frustration and stress in confined animals. When the animal cannot control things, such as the feeding time or the lighting program, and when it cannot escape from things it finds unpleasant, it often behaves in a manner that indicates frustration.
Cavitation can also cause excessive pump vibration, which could damage pump bearings, wearing rings, and seals. A small number of centrifugal pumps are designed to operate under conditions where cavitation is unavoidable.
Many areas in hydraulic systems are prone to cavitation wear, such as: 1  Downstream of control valves that have high pressure differentials, 2  In the suction chambers of pumps where starved inlet conditions exist, 3  In rapidly moving actuators (both linear and rotary types) where negative load conditions occur,