Troubleshooting Mechanical Seals | Scoring | Part 5
Chesterton
Scoring
| SEAL FACE SCORING | SEAL 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
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