What causes a high corrosion and wear resistant multistage pump to always intake air?
Category: Water pump knowledge
2025-05-17
Regarding air ingress in highly corrosion and abrasion-resistant multistage pumps, this is a relatively complex issue that may involve multiple aspects. Below are some possible causes and solutions.
1. Piping design or installation issues: If the pump's inlet piping is poorly designed or improperly installed, it may lead to air ingress. For example, excessively long pipelines, excessive bends, or leaks in pipe connections can all cause air ingress. Resolving such issues requires redesigning the pipeline or adjusting the installation location to ensure smooth and unobstructed flow, and that connections are well-sealed.
2. Poor pump sealing performance: Poor sealing performance in multistage pumps can also lead to air ingress. Inspect the pump's sealing devices, such as sealing rings and gaskets, for damage and replace them if necessary. Also, check the wear and tear of the pump shaft and bearings; severe wear can also lead to air ingress.
3. Gas erosion: In some special working environments, such as handling liquids containing gases, gases may erode the inside of the pump, leading to air ingress. In this case, special protective measures need to be taken, such as using gas-erosion resistant materials or adding exhaust devices.
4. Improper operation: Improper operation of multistage pumps can also lead to air ingress. For example, failing to fully open the inlet valve when starting the pump, or improperly adjusting parameters during operation. Therefore, operators must strictly follow operating procedures to ensure normal pump operation.
5. Environmental factors: In some special environments, such as high-altitude areas or low-temperature environments, air pressure or density may change, potentially leading to air ingress into the pump. In such cases, appropriate measures need to be taken, such as adding pressure regulating devices or heating devices.
In summary, there can be various reasons for air ingress in highly corrosion and abrasion-resistant multistage pumps. Resolving such issues requires a comprehensive inspection and analysis of the pump, piping, and operation to identify the problem and take appropriate measures. It is also necessary to strengthen equipment maintenance to ensure normal operation. If you have any questions or problems that are difficult to solve, it is recommended to seek help from professional technicians.
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