Covalence Heat Shrink Sleeve Applications

Covalence heat shrinkable sleeves, produced by Seal For Life, are engineered for a wide range of pipeline protection and sealing applications. Their robust design and versatile product range make them suitable for various industries and pipeline conditions. The main applications include:

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  Covalence sleeves are widely used to protect the welded joints (field joints) of pipelines from corrosion, restoring the integrity of factory-applied coatings after pipeline sections are joined in the field. This is a critical application for oil, gas, and water pipelines of all diameters.

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  The sleeves provide a tough, abrasion-resistant barrier that shields pipelines from mechanical damage, soil stresses, and impacts during installation and throughout the pipeline’s operational life. This is especially important for pipelines buried underground or exposed to harsh environments.

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  Covalence offers specialized sleeves for sealing joints in district heating and district cooling pipelines, ensuring long-term protection against moisture ingress and thermal losses.

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  Products like the Covalence DIRAX system are specifically designed for high-stress applications such as horizontal directional drilling (HDD), where pipelines are pulled through the ground and subjected to significant mechanical forces. Fiberglass-reinforced sleeves are used for extra strength in these demanding environments.

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  Covalence sleeves are used for retrocoating welded seams, couplings, bolt connections, pipe bends, flanges, and for repairing damaged factory coatings on both new and existing pipelines.

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  The product line includes sleeves for sealing joints in pre-insulated pipe systems, commonly used in district heating/cooling and industrial applications, to maintain insulation integrity and prevent water ingress.

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  Covalence offers sleeves for specific pipeline features such as flanges, sockets, and bends, as well as molded parts for gas distribution networks and accessories for complex joint configurations.

• Available in both 2-layer and 3-layer systems, with options for epoxy primers and various adhesive types to suit different temperature and service requirements.

• Compatible with a wide range of pipe diameters and factory-applied coatings, including polyethylene (PE) and polypropylene (PP).

• Approved by major global standards (ISO, EN, AWWA, NACE, GOST), ensuring suitability for diverse field conditions.

Covalence heat shrinkable sleeves are trusted globally for protecting pipelines against corrosion, mechanical damage, and environmental ingress, making them a leading choice for field joint coating and pipeline sealing across multiple industries.