What problems will occur when the gear pump is idle for a long time?

The noise of gear pumps mainly refers to the aerodynamic noise generated during the transportation of gases/liquids, the structural noise excited by the vibration of the motor casing, the noise generated by the vibration of the machine base, and the noise of the motor. This type of noise level peak is mainly concentrated in the low octave band, approximately in the range of 100-450Hz. This sound source belongs to steady-state noise during normal operation of the gear pump room. Pipeline noise refers to the noise generated when the medium flows in the pipeline. In addition, the cavitation and water hammer phenomena of gear pumps can also generate instantaneous noise. The noise generated by water supply pipelines is affected by flow velocity and pressure.