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Common faults in the operation of wear-resistant mining multistage pumps

12 Nov 2020Email

Common faults in the operation of wear-resistant mining multistage pumps


Wear-resistant mining multi-stage pumps are not uncommon in our production and life, and are a kind of pump with a very wide range of applications. After a period of use and work, wear-resistant mining multi-stage pumps often have some small failures. We must pay attention to such small failures, otherwise the service life of the pump will be greatly reduced. What are the causes of our common problems?   


A. Increased vibration   
1. Rotor imbalance   
2. Bearing wear   
3. The shelf parts are loose   
4. Poor alignment between pump shaft and prime mover shaft   

B. Low flow and range   
1. There is gas in the pump body or suction pipe   
2. The pipeline is blocked   
3. The direction of rotation is wrong   

C. The temperature is too high   
1. The rotating part is unbalanced   
2. Bearing wear   
3. The cooling effect of the bearing becomes worse   
4. Bearing installation error   

D. The seal leaks seriously   
1. Loose packing   
2. The mechanical seal is damaged   
3. Improper sealing fluid pressure   
4. Poor alignment between pump shaft and prime mover shaft   

These minor faults are extremely common in our use of wear-resistant mining multi-stage pumps. Eliminating these minor faults is of great significance to the maintenance of the pump.

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