Troubleshooting Mechanical Seals – Chipping – Part 6

from Chesterton
Posted 2/23/2004

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SEAL FACE – CHIPPING O.D.      SEAL FACE – CHIPPING I.D.

SYMPTOMS: Chipping on outside/inside diameter

CAUSES: Faces opening/flashing – Operating near vapor point Vibration Cavitation – Equipment operation Products hardening and setting-up Overpressurization

FAILURE MODES: Inadequate environmental controls Misapplication Product harden, set-up Exceed limits (speed, temperature, pressure) Equipment operation Lack of seal face lubrication

SOLUTIONS: Proper environmental controls Check equipment operating conditions Insure the product is not flashing between the seal faces Seal operating within design parameters

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