Screw Pump Maintenance: Essential Practices to Extend Lifespan​

In industrial operations, Screw Pumps play a vital role in fluid transfer, and their stable operation directly affects production efficiency. However, like any mechanical equipment, Screw Pumps will experience wear and tear over time. Scientific and reasonable maintenance is the key to extending their service life. Here are some essential maintenance practices for Screw Pumps.​

Daily Inspection: The First Line of Defense for Screw Pumps​

Daily inspection is the foundation of Screw Pump maintenance. It is necessary to check whether the pump body has abnormal vibrations and noises regularly. Abnormal vibrations may indicate loose parts or misalignment of the pump, while unusual noises could be a sign of friction between components. At the same time, pay attention to the temperature of the Screw Pump during operation. If the temperature is too high, it may be caused by poor lubrication or blockage in the flow path, which needs to be dealt with in a timely manner.​
In addition, the sealing performance of Screw Pumps should be checked daily. Observe whether there is leakage at the shaft seal and flange connections. Once leakage is found, the cause should be identified immediately. It may be that the seal ring is worn or the fastening bolt is loose, and corresponding measures should be taken to repair it to prevent fluid loss and environmental pollution.​

Reasonable Lubrication: Ensure Smooth Operation of Screw Pumps​

Lubrication is crucial for the normal operation of Screw Pumps. The rotating parts of the pump, such as the screw and bearing, need adequate lubrication to reduce friction and wear. It is necessary to select the appropriate lubricating oil according to the model and working conditions of the Screw Pump, and strictly follow the manufacturer's recommendations for lubrication intervals and oil change amounts.​
When adding lubricating oil, ensure that the oil is clean and free of impurities to avoid damaging the precision components of the Screw Pump. At the same time, regularly check the oil level and oil quality. If the oil level is too low, add it in time; if the oil quality deteriorates (such as discoloration, emulsification), replace the lubricating oil immediately to ensure the lubrication effect.​

Regular Cleaning: Prevent Blockage and Improve Efficiency of Screw Pumps​

During the long-term operation of Screw Pumps, impurities, sediments, and other substances in the fluid may accumulate inside the pump, leading to blockage of the flow path, reduced flow rate, and increased energy consumption. Therefore, regular cleaning of Screw Pumps is essential.​
The cleaning cycle should be determined according to the nature of the transported fluid and the working environment. For fluids containing more impurities, the cleaning frequency should be appropriately increased. When cleaning, disassemble the relevant parts of the Screw Pump as required, remove the accumulated dirt, and clean the components with clean water or a suitable cleaning agent. After cleaning, reassemble the parts correctly to ensure the tightness and accuracy of the pump.​

Timely Replacement of Worn Parts: Avoid Secondary Damage to Screw Pumps​

After long-term use, some parts of Screw Pumps will inevitably wear out, such as screws, bearings, and seal rings. If these worn parts are not replaced in time, it will not only affect the performance of the pump but also may cause secondary damage to other components, increasing maintenance costs.​
Regularly inspect the wear of key parts of the Screw Pump. For parts that have reached the wear limit, replace them with genuine parts that meet the specifications. When replacing parts, pay attention to the installation method and accuracy to ensure that the replaced parts can work normally with other components, restoring the performance of the Screw Pump to the best state.​

Doing a good job in the maintenance of Screw Pumps through daily inspection, reasonable lubrication, regular cleaning, and timely replacement of worn parts can effectively extend their service life, ensure their stable and efficient operation, and bring greater economic benefits to industrial production.​