This report presents the findings of a literature review of the issues surrounding the corrosion of offshore firewater deluge systems as well as inspection and cleaning methodologies which may be used. Contributions of case studies from offshore operators is included, detailing their experiences of corrosion of deluge systems and cleaning methods and maintenance schedules.
The report also includes the findings from corrosion tests performed at HSL on carbon steel coupons immersed in proprietary chemicals used to clean deluge systems and compares these results to corrosion tests carried out in sea water.
The findings of the report were that:
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