Troubleshooting Mechanical Seals – Scoring – Part 5
Chesterton
SEAL FACE SCORING | SEAL 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
This is a 9 part series. Click to view each article: 1 : 2 : 3 : 4 : 5 : 6 : 7 : 8 : 9
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