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How to eliminate noise of vacuum pump

1. If the vacuum pump is in the working state, the vacuum degree indicated by the vacuum meter is about -0.093, it will produce sharp noise (cavitation sound). This is a normal phenomenon, because the vacuum pump itself has a matching cavitation protection pipe to reduce this noise, so as long as the valve is opened, the noise can be reduced.

2. If the flow rate of working fluid is too large, cavitation noise will also be generated. If the flow rate of working fluid is not the above problem, it is very likely that the intermittent noise caused by friction and impact caused by impurities in the pump body may be caused by the high-speed operation of the impeller. Please repair and maintain it as soon as possible.

3. If the design, manufacture or material are not proper, the vane sliding is not smooth, or the blade head cannot always run close to the cylinder wall due to the existence of exhaust dead gap and incompressible oil, it will cause the impact sound of the vane on the cylinder wall. Therefore, the circular arc structure should be adopted to separate the inlet and exhaust ports. The dead gap is eliminated by the exhaust guide groove.

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Last edited by bowahvacuum on 12/23/2022 7:06:09 PM