Operating Procedures of Canned Motor Pumps

Canned motor pumps are high-efficiency, energy-saving units. Their typical operating sequence is as follows:

Pre-start Inspection: Before starting the unit, comprehensive checks must be conducted. This includes verifying the integrity of the pump seals, ensuring proper bearing lubrication, and monitoring motor temperature to confirm that all performance parameters are normal.
Start-up and Operation: Once the motor is started, it drives the pump shaft to rotate. The fluid is suctioned into the pump; through the centrifugal action of the impeller within the pump casing, the liquid is accelerated, generating the pressure required to propel the fluid flow.
Operational Monitoring: During operation, it is essential to continuously monitor the unit’s status. Key indicators such as temperature, vibration levels, and noise must be tracked to ensure stable and safe performance.
Shutdown Procedure: When stopping the unit, first close the inlet valve, followed by the outlet valve. Finally, turn off the motor switch to cease operation.

Maintenance Note: During the service life of a canned motor pump, regular maintenance is mandatory. This includes cleaning the filters, inspecting bearing lubrication, checking the secondary seals (if applicable), and evaluating overall motor performance.