Judging whether the micro-centrifugal pump needs to be replaced is usually based on a combination of factors. Here are some of the main grounds for judgment:
Performance degradation:
Reduced flow: If the pump's flow rate is significantly lower than its rating or past use, there may be problems inside the pump such as blockage, wear or seal failure.
Insufficient pressure: When the output pressure of the miniature centrifugal pump is reduced, it can not meet the needs of the system, and it is also a performance decline.
Increased noise and vibration:
Abnormal noise and vibration often indicate wear, loosening or imbalance of the internal parts of the pump. Constant noise and vibration not only affect pump performance, but may also damage other equipment or components.
Energy efficiency reduction:
If the energy consumption of the pump increases significantly, and the output flow or pressure does not increase accordingly, the efficiency of the pump may decrease and need to be replaced.
Leakage problem:
Check pump body, seals and joints for liquid leaks. Continuous leakage not only wastes resources, but also may affect the normal operation of the equipment and the working environment.
Running time:
Given the service life of the pump, a pump that has been running for a long time may need to be replaced due to natural wear and tear. Although this is not an absolute criterion, it can be used as a reference factor.
Maintenance records and inspection results:
Review pump maintenance records and periodic inspection results to learn about pump history problems and maintenance. If the pump fails frequently or is expensive to repair, it may need to be replaced.
Manufacturer recommendations:
Refer to the pump life and maintenance guidelines provided by the manufacturer for pump life expectancy and replacement standards.
Spare parts supply and cost:
If spare parts for the pump are difficult to obtain or the cost is too high, it may affect the timeliness and economy of maintenance. In this case, it may be more appropriate to replace the entire pump.