from Chesterton
Posted 2/23/2004
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
