Troubleshooting Mechanical Seals – Even/ Uneven Wear Track – Part 4

from Chesterton
Posted 10/26/2003

316-1

 

 

 

 

Even Wear Track                            Uneven Wear Track

SYMPTOMS:

  • Even/uneven wear track

CAUSES: Even wear on a seal face usually indicates –

  • Good contact between the mating seal rings

Uneven wear on a seal face indicates –

  • Distortion of the seal ring due to over tightening, clamping, or excessive pressure
  • Distortion due to insufficient gland support
  • Misaligned seal rings in a split seal
  • Improperly stress relieved component

FAILURE MODES:

  • Misinstallation
  • Quality/design related issue

SOLUTIONS:

  • Review installation techniques/instructions
  • Check/reduce torque and evenly tighten gland bolts
  • Review operating conditions
  • Reduce torque and evenly tighten gland bolts
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