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Failure analysis and quality requirements of screw pump seals
Statistics from home and abroad show that screw pump seal failures account for 50%-70% of centrifugal pump failures, and aging failures account for 10%-30% of screw pump seal failures. The vast majority are accidental failures, which are the subject of failure analysis.
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Common Faults and Troubleshooting of Water Pumps
One reason is the power supply: If the voltage is too high or too low, and under a specific load, if the voltage fluctuation range is outside 10% to -5% of the rated value, it will cause the motor to overheat.