Troubleshooting Mechanical Seals – Scoring – Part 5

Troubleshooting Mechanical Seals – Scoring – Part 5

Chesterton

mechanical seals, seal face scoring, seal face erosion
SEAL FACE SCORINGSEAL FACE EROSION
SYMPTOMS:

  • Scoring or erosion

CAUSES:

  • Rebuilding seal in dirty environmentFaces 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 facesLack of seal face lubrication

SOLUTIONS:

  • Maintain seal face flatnessEliminate dry running, flashing and vibrationUse clean flush source with bushingUse suction recirculation controlUse harder seal face materials


Chesterton

This is a 9 part series. Click to view each article: 1 : 2 : 3 : 4 : 5 : 6 : 7 : 8 : 9 

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