Transcription of SEALING SENSE
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SEALING SENSE
Are the symptoms, causes, and correctiveactions for failure of mechanical seals by thermal attack? symptom of thermal attack is the appear-ance of fine-to-large radial cracks that emanate fromthe center of the metal or ceramic ring. Character-ized asheat checking,these cracks act as cuttingedges on the carbon-graphite and other seal facematerials, and the consequent scraping action rapid-ly wears out the causes of heat checking include: (1)insufficient lubrication; (2) vaporization at the sealfaces; (3) inadequate cooling; and (4) excessive pres-sures and velocities.
Q.What are the symptoms, causes, and corrective actions for failure of mechanical seals by thermal attack? A. One symptom of thermal attack is the appear-
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