Problem Summary
Anomaly Description:
A leak was detected on an old clamp but a shutdown for replacing the line and removing the clamp was not possible.
Root causes:
There was a need to cover the entire clamp in order to stop the leak as the existing clamp was too old to re-inject. The leak was caused by the current aging of clamp and/or sealing compound. The existing enclosure also posed a safety risk as the enclosure has been kept on the line for longer than the original design lifetime.
Integrity concerns:
The old clamp will not be able to keep the piping in position in the case that complete failure of the original defect occurs. In the case of complete failure, the pipe will slip off the clamp easily due to degradation of the existing clamp and result in a plant upset.




