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Shrinkable Casing End Seal

Shrinkable Casing End Seal

Shrink sleeve

products for girth-weld protection of elevated operating temperature pipelines

The Canusa Casing Snap-Fit Sleeves (CSF/CSK) are high expansion heat-shrinkable wrap-around sleeves specifically designed to provide a waterproof seal on pipeline casings operating at constant temperatures of up to 60°C (140°F). As part of an underground system they electrically isolate pipelines from metallic casings. As well, the CSF/CSK products can be used to prevent the corrosion of above ground flanges and mechanical couplers. The sleeve consists of an irradiation, cross-linked, heat-shrinkable polyolefin backing, coated with an aggressive adhesive that effectively bonds to commonly used pipeline coatings including polyethylene, epoxy, tapes and coal tar enamel. Materials used in these products provide high electrical resistivity, resistance to corrosive environments, low water absorption and low moisture permeability. This combination ensures a permanent seal that is resistant to pipe deflection, vibration, soil stress, corrosive gases, and thermodynamic efects resulting from the expansion and contraction of carrier and casing pipes, flanges and mechanical couplers.

  • One-piece construction that allows rapid and reliable field installation
  • Unique snap-fit closure system allows for an accurate installation
  • The CSK kit contains a roll of filament tape and a polypropylene support skirting to provide smooth transition between the casing and the carrier pipe
  • Excellent structural integrity
  • Superior mechanical protection to the joint by maintaining a hoop-stress around the adhesive and creating a tough permanent bond