The Method Of Prolonging The Life Of Centrifugal Pump

The method of prolonging the life of centrifugal pump


General maintenance

General / routine maintenance varies by manufacturer and equipment type, but the following are recommended maintenance measures:

Part 1.Daily maintenance

1. Daily

Perform routine checks such as leak checks, vibration analysis, temperature and discharge pressure checks, and oil level and condition checks.

2. Monthly / quarterly

Monthly and / or quarterly maintenance to ensure the pump is tightened, the mechanical seal is intact, the shaft is positioned correctly, and the oil is not contaminated / needs to be replaced. Verify the gap between the wear surfaces recommended by the manufacturer and correct the gap if it exceeds the recommended size.

3. Every year

Check the capacity, pressure and power of the pump every year. Compare the performance of these metrics with your process requirements. If the performance is inconsistent, you need to remove the pump, thoroughly check and replace the necessary worn parts. 


Part 2. Maintenance type

1. Preventive maintenance – maintain the equipment regularly to reduce the possibility of equipment failure. It is performed while the device is still working, so it will not be accidentally damaged.

2. Predictive maintenance – a technology that uses condition monitoring tools and techniques to track the performance of devices during normal operation to detect possible defects and repair them before they cause failures

3. Reactionary maintenance - this refers to the maintenance that is carried out when the equipment has failed in order to restore the equipment to normal operation.

4. Continuous diagnostic maintenance - the process of monitoring machine condition parameters (vibration, temperature, etc.). In order to identify significant changes that indicate a developing fault. Using condition monitoring can schedule maintenance or take other measures to prevent indirect damage. Condition monitoring helps to solve the problem of shortening the life of equipment. These technologies are commonly used in rotating equipment, auxiliary systems, and other machinery, such as compressors, pumps, motors, internal combustion engines, and presses.

5. Historical maintenance - use the schedule of all maintenance performed on a device and schedule maintenance based on historical data to attempt to maintain the device within the recorded time range before the failure occurs. 

Part 3. OEM parts

The use of OEM components is essential to extend the life of submersible centrifugal pumps. Some of the main reasons for using OEM parts include the manufacturer's warranty, the specifications and tolerances that are met, the shelf life of the material, and the avoidance of inaccurate copies of the original parts.

Failure to use OEM parts may void the manufacturer's warranty. Because the parts are not fully aligned, this will also affect the pump specifications and tolerances. Non OEM parts are usually copies of the original parts. When making a replica, it can be made of old / worn parts, unsuitable versions, or materials different from the original manufacturer.

Although non OEM parts have a lower cost appeal, this may be a short-term expense. In the long run, these components may lead to other complications, requiring more maintenance and expenditure throughout the life of the equipment.

 end-suction-chemical pump CZ200-400


In order to prolong the service life of submersible centrifugal pump, proper measures must be taken. Proper installation, routine maintenance and use of OEM components are necessary for the health and overall function of the pump.