The failure of mechanical seals is generally known to people after abnormal leakage, abnormal wear, abnormal torque and other phenomena appear. The reasons for the failure are roughly as follows:
1. The design and selection of mechanical seal is incorrect;
2. The mechanical seal is of poor quality;
3. The accuracy of the machine that uses or installs the mechanical seal cannot meet the requirements;
4. The machine is running incorrectly.
Specific analysis of specific circumstances
