Troubleshooting Mechanical Seals – Wide Wear Track – Part 2

from Chesterton
Posted 9/27/2003

311-1311-2

 

 

 

 

 

ROTARY SEAL FACE – WIDE TRACK STATIONARY 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

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