Reasons for the damage of the bearing sleeve in acid-carrying magnetic pumps
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We often need to replace the graphite bearing sleeves of the magnetic pumps used for transporting acid here. **Everyone**, what are the reasons for their damage?
1. It might be that the filter screen is damaged, with too many impurities in the medium； 2. Poor cooling
Check the axial alignment, or try using diluted silicon instead; ours is still in good condition and hardly damaged.
It’s necessary to check whether it’s the front bearing or the rear bearing that’s damaged. If the rear bearing keeps failing, it might be due to excessive axial force
What acid? Solid content? Specific gravity? Temperature? What material is the pump made of? Metal, plastic?
98% concentrated sulfuric acid, without solids.
The self-cooling system experiences high temperatures, wear and heat generation, or excessive axial force, improper concentricity, and significant motor vibration.
In the case of 98% acid corrosion and vaporization, the conditions are not too severe. Check whether the filter screen in front has an appropriate material; verify whether there is excessive axial movement of the bearings; inspect the alignment of the couplings. It is also necessary to ensure that the spare parts meet the standards, such as ensuring that the shaft does not have excessive play.