Is used: Oil and gas industry

DIRAX heat shrink sleeve, Heat-shrink cuff Canusa-CPS

DIRAX system is a high-strength heat-shrink cuff that provides reliable corrosion protection of welding joints during horizontal or controlled drilling.

DIRAX includes:

- A heat-shrink wrap cuff, reinforced with (1) glass fiber and a pre-fastened lock and (2) a coat of hot-melt adhesive resistance to shear. (The special cuff reinforced with glass fiber makes the material highly abrasion-resistant but also keeps it flexible to follow pipe bends);

- A narrow cuff made of a narrow heat-shrink cuff reinforced with glass fiber and a fastened lock, and a coating from hot-melt adhesive resistant to shears;

- two-component epoxide primer.

 Heat-shrink cuff Canusa-CPS is a two-layer system on a radiation-grafted polyolefine base covered inside with a hot-melt or mastic adhesive. Subject to project specifications and if a three-layer coating is used for pipe trunk insulation, the third layer could be applied – an epoxide primer – directly onto the pipe when the cuff is being installed onto a pipe to be laid.

Cuffs - General information


Pipeline working temperature

Up to 65 ° Up to 80 ° 120°

Required pre=heat temperature

90° 110° 190°
Cycle load resistance Excellent
Soil load resistance Excellent
Resistance to axial motion of the pipe Excellent
Compatibility with different types of main pipe coating Epoxy, polyethylene, polypropylene, extra strong composites
2011 CJSC Gazprom StroyTEK Salavat

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