Appropriate practices avoid tube fitting failures

A corrosion-related failure of a tube fitting on an offshore platform highlights a potential safety issue that could affect thousands of fittings currently in service worldwide.Corrosion is not a hidden menace. Its onset in fittings typically shows up as rust staining at the back of the nut. One usually can identify and correct it easily if appropriate monitoring procedures are in place.Personnel need to monitor fittings routinely, at least annually. Evidence of corrosion demands that the fitting in question be inspected internally and replaced if necessary.An understanding of the key mechanism that causes tube fittings to corrode is crucial for building higher integrity systems for avoid...

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