Troubleshooting Mechanical Seals – Centered/ Miscentered – Part 4

from Chesterton
Posted 10/12/2003

313-1

 

 

 

 

STATIONARY (TYPE SEAL) –       ROTARY (TYPE SEAL) –
CENTERED                                  MISCENTERED

SYMPTOMS: Centered or miscentered

CAUSES: Centered seal face wear track indicates – Properly centered seal and good equipment operation Miscentered seal face wear track indicates Miscentered seal (rotary type) during installation Equipment condition – Radial runout Equipment operation – Off curve, vibration

FAILURE MODES: Misinstallation Equipment conditions

SOLUTIONS: Check bearings for radial runout exceeding limit of seal type Review installation techniques/instructions Check equipment for shaft – Seal chamber concentricity

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