MP Case History

6 Inch Corroded Fuel Oil Line

The 6” Fuel Oil Line has suffered from severe CUI close to and on the Tee section.

Nature of Defect

The 6” Fuel Oil Line has suffered from severe CUI close to and on the Tee section resulting in a large localised corrosion patch and several pin hole through wall defects.

Solution

Metalyte Pipeworks solution was to plug the defects with Hydrocarbon resistant epoxies and build up the wall loss with a high tensile load transfer resin. Metalyte Pipeworks will then apply 6 layers of their bespoke field applied composite system. This would halt any further corrosion issues and build the strength back in to the line for full operational requirements.

Repair Method

The full length of the line and the Tee section was shot blasted to Sa 2.5 to remove all corrosion and gain the surface profile required for the composite to adhere to. This presented several pin hole defects.

The pin holes were plugged with a two part putty to seal the leaks and the corrosion pits were filled with a high compression load transfer material. The pipe surface then had a resin bond coat applied prior to the application of the composite. The line was then wrapped in 6 layers of composite and allowed to cure.

Recent Case Histories