1. Magnetic pump shaft fracture. The material used in the pump shaft of the CQB type magnetic pump is the main cause of the fracture of the 99% alumina ceramics.Yes, because the air pump running, dry grinding and bearing shaft is broken. Disassemble the pump can be seen when the pump is worn to prevent the pump broken.
The main approach is to avoid the pump air transfer.
2. Magnetic centrifugal pump bearing damage. CQB magnetic pump bearing used in high-density carbon materials, such as the case of pump or pump without water complex.Quality, it will cause damage to the bearing. The coaxial degree between the inner and outer magnetic rotors of the cylindrical coupling is required if the guarantee is not guaranteed.Affect the bearing life.
3. Magnetic centrifugal pump can not play the liquid. Magnetic pump out of the liquid pump is the most prone to failure, the reason is also more. First check
Check whether the pump suction pipeline leak place, check whether the air is discharged in the suction pipe, the amount of liquid filling the magnetic pump is
Enough suction tube is blocked with debris, should also check the pump check whether the reverse (especially in another motor after maintenance or power lines after), it should also pay attention to whether the pump suction height is too high. Through the above check if still can not be resolved, the pump can be opened to check, look at the pump.If the shaft is broken, it should check whether the moving ring and the static ring are in good condition, and the whole rotor can move in a small amount of axial direction. If the axial movement of the trapped. Difficult, can check whether the shaft and the pump shaft combined with too tight.
