The working principle of acid and alkali resistant magnetic pump is that the outer magnet is driven directly by the motor, and the outer magnet drives the inner magnet (connected to the impeller) to run synchronously through magnetic coupling. The advantage of acid and alkali resistant magnetic pump is no leakage and smooth running. Its shortcomings are such as the solution contains ferromagnetic metal impurities in the flow through the pump cavity is easy to be magnetically adsorbed between the inner and outer magnets, long-term operation. Accumulated impurities may wear out or even break the isolation sleeve (sealing body) between the inner and outer magnets, resulting in pump damage until scrapped.

Acid and alkali magnetic pump bearing damage in four major areas

　　First, poor lubrication (about 50)

　　According to the survey, poor lubrication is one of the main reasons for premature bearing damage, including:

　　1, not timely filling of lubricant or lubricating oil;.

　　2, lubricant or lubricant is not refilled in place.

　　3, lubricant or amount of UN scrolls have improper selection;.

　　4, the lubrication method is not correct and so on.

　　Suggestions: choose the correct lubricant or lubricant, use the correct lubrication filling method.

　　Second, plastic Pu improper installation (about 16)

　　1, the installation of the use of brute force, with a hammer directly hit the bearing bearing damage, is the main cause of deformation.

　　2, installation is not in place, the installation of a ticket difference or not installed to the bearing position, resulting in bearing clearance is too small. Inner and outer ring is not in the same rotation, resulting in different centres.

　　Suggestions: choose the appropriate or bearing installation tools, installation is completed with the instrument detection.

　　Third, fatigue (about 34)

　　Fatigue damage is a common way of bearing damage.

　　Common causes of fatigue damage may be: bearing long-term overload operation; not timely maintenance; improper maintenance; equipment aging, etc.

　　Fourth, pollution (about 14)

　　Pollution can also lead to premature bearing damage. Pollution substance of sand, dust, metal, etc. into the internal bearing.

　　1, prematurely open the bearing package before use, resulting in contamination.

　　2、Installation of the working environment is not clean, resulting in contamination.

　　3, the working environment of the bearing is not clean, the working medium pollution and so on.