Troubleshooting Mechanical Seals – Wide Wear Track – Part 2

Troubleshooting Mechanical Seals – Wide Wear Track – Part 2

Chesterton

mechanical seals, rotary seal face - wide track
mechanical seals, stationary seal face - narrow
ROTARY SEAL FACE – WIDE TRACKSTATIONARY SEAL FACE – NARROW
SYMPTOMS:
  • Wear track wider than narrow seal face
CAUSES:
  • Miscentering of stationary type seal
  • Radial shaft runout (bearing problem)
  • Shaft deflection/wobble during operation
FAILURE MODES:
  • Misinstallation Equipment conditions
  • Equipment design
SOLUTIONS:
  • Check bearings for radial runout exceeding limit of seal type
  • Review installation techniques/instructions
  • Calculate L/D ratio for equipment – Upgrade if necessary

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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