Corroded High Pressure Gas Line

HydraWrap® (Fiber Reinforced Polymer)

Market
Petrochemical

Challenge
The challenge was to reinforce defected areas of a high pressure gas transmission line due to external corrosion and provide protection from further corrosion.

Engineered Solution
The solution utilized the HydraWrap® Structural Composite Repair System.

Scope
A client requested a permanent structural repair of the exterior of 14-in diameter API 5L X46 piping to prevent further corrosion to the area and to restored it back to original condition.

Solution
The solution utilized four layers of the HydraWrap® carbon fiber system to repair areas of the pipe with wall losses of 40% or greater. The exterior of the piping was prepared by grit blasting the surface to remove any dirt and loose debris and to obtain a surface profile. Once the surface was prepared, the HydraWrap® epoxy primer was applied to fill in voids to bring the pipe back to original shape and promote adhesion. Once the pipe’s surface was primed, the HydraWrap® carbon fiber was saturated with HydraWrap® wet–out epoxy and applied to the primed surface.

Two separate areas of the 14-in pipe were repaired and reinforced with the HydraWrap® carbon fiber reinforced composite. The HydraWrap® system restored the structural integrity and extended the service life of the pipe.