Covalence^® DIRAX

The DIRAX system is a wrap-around heat shrinkable sleeve reinforced with fibre glass. DIRAX is designed to protect girth welds against corrosion and is the optimum joint protection for PE and FBE coated pipes used in directional drilling applications. The reinforcement gives the backing greater wear resistance.

• First layer: Liquid epoxy, solvent-free two-component.
• Second layer: High shear strength copolymer adhesive.
• Third layer: Thick, fibre glass reinforced, radiation cross-linked polyethylene.

Additional component: Wear Cone as extra protection against pull through forces, of the same construction as the main sleeve.

During installation, the epoxy is applied to the prepared pipe surface and the heat-shrinkable sleeve is immediately wrapped around the joint over the wet epoxy. Heat is then applied to the sleeve, which shrinks to form a tight fit around the joint. While curing, the epoxy forms strong mechanical and chemical bonds to the pipe surface & to the copolymer adhesive layer. The radiation cross-linked outer layer forms a tough barrier against mechanical damage and moisture transmission. A wear cone is then applied over the leading edge of the sleeve.
Note: DIRAX is not suitable for "Push Through" applications.

Covalence^® DIRAX