Mechanical seal-failures

Mechanical seal-failures

1. Page: 1
Mechanical Seal FailuresMechanical Seal Failures
Basic Failure Analysis

2. Page: 2

3. Prepared: 06/26/18FileName: Master Page: 3
Mechanical Seal Failure Mechanical Seal Failure
AnalysisAnalysis
•Seals fail for 2 basic
reasons:
–One of the seal
components has become
damage
–Something caused the
faces to open up
•The basic process is to
carefully examine all of
the components and
look at the equipment
and application.

4. Prepared: 06/26/18FileName: Master Page: 4

5. Prepared: 06/26/18FileName: Master Page: 5

6. Prepared: 06/26/18FileName: Master Page: 6

7. Prepared: 06/26/18FileName: Master Page: 7

8. Prepared: 06/26/18FileName: Master Page: 8

9. Prepared: 06/26/18FileName: Master Page: 9

10. Prepared: 06/26/18FileName: Master Page: 10

11. Prepared: 06/26/18FileName: Master Page: 11

12. Prepared: 06/26/18FileName: Master Page: 12

13. Prepared: 06/26/18FileName: Master Page: 13

14. Prepared: 06/26/18FileName: Master Page: 14

15. Prepared: 06/26/18FileName: Master Page: 15

16. Prepared: 06/26/18FileName: Master Page: 16

17. Prepared: 06/26/18FileName: Master Page: 17

18. Prepared: 06/26/18FileName: Master Page: 18

19. Prepared: 06/26/18FileName: Master Page: 19

20. Prepared: 06/26/18FileName: Master Page: 20
Balance Seals vs Unbalanced Seals

21. Prepared: 06/26/18FileName: Master Page: 21

22. Prepared: 06/26/18FileName: Master Page: 22

23. Prepared: 06/26/18FileName: Master Page: 23

24. Prepared: 06/26/18FileName: Master Page: 24

25. Prepared: 06/26/18FileName: Master Page: 25

26. Prepared: 06/26/18FileName: Master Page: 26
Testing for Seal Face Flatness

27. Prepared: 06/26/18FileName: Master Page: 27

28. Prepared: 06/26/18FileName: Master Page: 28
Seal Environmental ControlsSeal Environmental Controls
Controlling the seal temperature,
fluid, removing impurities, etc.

29. Prepared: 06/26/18FileName: Master Page: 29
Seal Flush

30. Prepared: 06/26/18FileName: Master Page: 30
Seal Quench and Drain

31. Prepared: 06/26/18FileName: Master Page: 31
Double Seal with Pressurized Barrier Fluid

32. Prepared: 06/26/18FileName: Master Page: 32

33. Prepared: 06/26/18FileName: Master Page: 33

34. Prepared: 06/26/18FileName: Master Page: 34

35. Prepared: 06/26/18FileName: Master Page: 35

36. Prepared: 06/26/18FileName: Master Page: 36

37. Prepared: 06/26/18FileName: Master Page: 37

38. Prepared: 06/26/18FileName: Master Page: 38

39. Prepared: 06/26/18FileName: Master Page: 39

40. Prepared: 06/26/18FileName: Master Page: 40