Newly installed mechanical seal leak after running into the reasons, most of mechanical seals belonging to the problem of installation.

1. The end face of the design pressure ratio is too small, not enough to meet the needs of specific pressure seal;
2. Spring compression is too small;
3. Seal face roughness did not meet the requirements;
4. The flatness of the seal face of inalienable;
5. Sealing ring deformation under pressure and temperature factors undermine the flatness of the seal face;
6. Ring stuck in the drive seat;
7. Static ring different heart;
8. The load factor in the balance of substandard quality seal in (often too small);
9. The bellows-type mechanial seal, inner and outer diameter of the bellows inappropriate.

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