MP Case History

4 Inch Closed Drain Line Repair

The 4” line had suﬀered from internal corrosion.

NATURE OF DEFECT

The 4” line had suﬀered from internal corrosion. This resulted in significant wall loss. The client required a composite repair to help mitigate the internal issue.

SOLUTION

Metalyte Pipeworks produced a repair method using Herculyte epoxies with a minimum overwrap of 12 layers of Dragon-Q-UHT composite system.

REPAIR METHOD

The substrate was prepared (excluding the identified defect area) using an MBX machine to gain a surface profile to SSP.SP11. Defects within the immediate repair area were repaired using Herculyte resins. 500 microns of Dragon resin was applied as a bonding coat to the entire repair area prior to application of the Dragon composite. The repair area was wrapped in 12 layers of engineered Drag- on-Q-UHT composite and cured until a minimum of 74.5 “Shore D” hardness was achieved.

Pipe integrity

Recent Case Histories

32 Inch Raw Water Pump Line Live Leak Composite Repair

The 32″ raw water line had suﬀered from internal erosion resulting in multiple through-wall perforations around the pump reducer connection piece

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The 24 inch line had suﬀered from a leak at the Techlok connection

Four 54 inch Water Pump Composite Live

Four 54 inch Sulzer raw water pumps had developed multiple through-wall leaks

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17 Meter Composite Repair to a 16 Inch Hydrocarbon Pipeline

The 16 inch hydrocarbon pipeline had suﬀered from extensive external corrosion