The line had the following specifications:
|Structure||Crude header line|
|Surface Preparation||Sa 2.5|
|Design Pressure||1,960 kPa|
|Design Temperature||120 °C|
|Application Temperature||20 °C|
|Design Life||5 years|
|Wrap Length||1 meter|
|Pipe Diameter||300 mm|
|Geometory||Clamp and elbow joint|
Internal corrosion of a crude header line was identified through NDT inspections. The corrosion was expected to form a 20mm through-wall defect within 5 years.
Technowrap 2K™ High Temperature (HT) was required due to the high design temperature of the line. The defect was within 100mm of an existing metal clamp that had been installed to repair an earlier defect, presenting a challenge in achieving the required wrap bonding length.
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