Troubleshooting Mechanical Seals | Scoring | Part 5

Troubleshooting Mechanical Seals | Scoring | Part 5

Chesterton

Scoring

mechanical seals, seal face scoring, seal face erosion
SEAL FACE SCORINGSEAL FACE EROSION
SYMPTOMS:
  • Scoring or erosion
CAUSES:
  • Rebuilding seal in dirty environment
  • Faces opening/flashing/vibration/distortion of the seal face due to temperature and pressure
  • Minerals found in the fluid film between the seal faces
FAILURE MODES:
  • Abrasive particles between the seal faces
  • Lack of seal face lubrication

SOLUTIONS:

  • Maintain seal face flatness
  • Eliminate dry running, flashing and vibration
  • Use clean flush source with bushingUse suction recirculation control
  • Use harder seal face materials

Chesterton

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