1. The water pipe must be highly sealed.
2. Long-term operation of centrifugal pumps under cavitation conditions is prohibited.
3. It is forbidden for the centrifugal pump to run for a long time with excessive current when the centrifugal pump is running.
4. Regularly check the operation of the centrifugal pump, the motor runs for a long time with overcurrent.
5. The centrifugal pump should be supervised by a dedicated person during operation to avoid accidents.
6. The bearings should be refueled every 500 hours of operation of the centrifugal pump. Motor power greater than 11KW is equipped with a refueling device, which can be directly injected with a high-pressure oil gun to ensure excellent bearing lubrication.
7. After long-term operation of the centrifugal pump, if the noise and vibration of the unit increase due to mechanical wear, the unit should be shut down for inspection. If necessary, the wearing parts and bearings can be replaced. The overhaul period of the unit is generally one year.
Mechanical seal maintenance and maintenance:
1. The mechanical seal lubrication should be clean and free of solid particles.
2. The mechanical seal is strictly prohibited to work under dry grinding conditions.
3. Rotate the centrifugal pump (motor) a few times before starting, so as to avoid sudden start and cause the sealing ring to break and damage.