Look at this magnetic pump
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The pump failed to measure and the inside looked like this after being disassembled.
All corroded? Is there a problem with the selection? Or what?
What kind of medium does this pump pump?
The pump has been idling, the shaft on the isolation sleeve has worn, and the gap has increased, causing friction between the internal magnet and the isolation sleeve. Or the fluorine lining on the outside of the inner magnet is cracked, the magnet is corroded, and the rotor is unbalanced, etc., and the shaft is worn.
Corrosion and wear are very serious. Don't you do regular inspections?
Just like our factory, we need to pump every day. The isolation sleeve was worn after grinding the shaft sleeve while the pump was idling. Demagnetize external magnets at high temperatures