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Knowledge related to metal sealing

2023-06-29

 Part 1:Fault phenomenon of mechanical seal
1. Excessive or abnormal leakage
2. Power increase
3. Overheating, fume, making noise
4. Abnormal vibration
5. Massive precipitation of wear products

Part 2:Reason
1. The mechanical seal itself is not good
2. Improper selection and poor adaptability of mechanical seals
3. Poor operating conditions and operational management
4. Poor auxiliary devices





Part 3:External characteristics of mechanical seal failure
1. Continuous leakage of seals
2. Sealing leakage and sealing ring icing
3. The seal emits an explosive sound during operation
4. Scream generated during sealing operation
5. Graphite powder accumulates on the outer side of the sealing surface
6. Short sealing life

Part 4:Specific manifestations of mechanical seal failure
Mechanical damage, corrosion damage, and thermal damage