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Mechanical Seals Troubleshooting-Scoring (part 5) PDF Print E-mail
Written by Administrator   
Saturday, 20 September 2008 06:50

from Chesterton
Posted 11-10-03

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 bushing
  • Use suction recirculation control
  • Use harder seal face materials
 
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