Factors Affecting The Service Life Of Submersible Pumps

The maintenance and upkeep of submersible pumps are the key to their long service life. Many users believe that submersible pumps do not require maintenance and upkeep, which is a wrong view! In order to ensure the normal use and lifespan of submersible pumps, regular inspections and maintenance should be carried out. Experts have provided the following suggestions:
1. Replacing the sealing ring: After long-term use in sewage media, the gap between the impeller and the sealing ring may increase, causing a decrease in water pump flow and efficiency. The electric switch should be turned off, the submersible pump should be lifted, the bottom cover should be removed, the sealing ring should be removed, and the sealing ring should be matched according to the actual size of the impeller mouth ring. The gap is generally about 0.5mm.
2. When the submersible pump is not in use for a long time, it should be cleaned and lifted in a ventilated and dry place, paying attention to antifreeze. If placed in water, run for at least 30 minutes every 15 days (without dry grinding) to check its function and adaptability.
3. The cables should be inspected at least once a year. If they are damaged, please replace them.
4. Check the insulation and fastening screws of the motor at least once a year. If the insulation of the motor decreases, please find a dedicated person to repair it. If the fastening screws are loose, please tighten them again.
5. The submersible pump has been injected with an appropriate amount of engine oil before leaving the factory to lubricate the mechanical seal, and this oil should be checked once a year. If water is found in the engine oil, it should be drained, the engine oil should be replaced, the sealing gasket should be replaced, and the screw plug should be tightened. After three weeks, it is necessary to recheck. If the oil returns to emulsion, the mechanical seal should be inspected and replaced if necessary.
6. After a malfunction occurs in the operation of the submersible pump, please follow the troubleshooting method provided. If the problem cannot be solved and the cause cannot be determined, do not disassemble or repair it without authorization. Instead, immediately find a dedicated person for repair.