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3PP Heat Shrinkable Sleeve is a specialized protective solution designed to safeguard pipelines and girth welded joints from environmental damage, corrosion, and mechanical wear. Made from high-quality polypropylene (PP), this heat shrinkable sleeve is engineered to provide a robust barrier that enhances the longevity and reliability of pipeline systems. Its unique properties make it an essential component in various industries, including oil and gas, water treatment, and chemical processing.
Advantages
Corrosion Resistance: One of the standout features of Pipeline PP Heat Shrinkable Sleeves is their exceptional resistance to corrosion. The polypropylene material forms a strong barrier against moisture, chemicals, and other corrosive elements, significantly reducing the risk of pipeline degradation over time.
Excellent Insulation: These sleeves provide outstanding electrical insulation, making them suitable for applications where electrical safety is paramount. They help prevent electrical shorts and ensure safe operation in high-voltage environments.
Durability: The high-quality polypropylene used in the construction of these sleeves is designed to withstand extreme temperatures and harsh environmental conditions. This durability ensures long-lasting protection, making them ideal for both indoor and outdoor applications.
Mechanical Protection: The heat shrinkable design allows the sleeve to conform tightly to the shape of the pipeline when heat is applied. This provides a secure layer of mechanical protection, shielding the pipeline from physical damage, abrasion, and impact.
Ease of Application: Pipeline PP Heat Shrinkable Sleeves are easy to install. They can be quickly applied using a heat source, allowing for efficient application in various settings, including remote locations where traditional protective methods may be impractical.
Cost-Effective Solution: By preventing corrosion and extending the lifespan of pipelines, these sleeves offer a cost-effective solution for maintenance and repair. They reduce the need for frequent replacements and minimize downtime, ultimately saving costs in the long run.
Applications
Oil and Gas Industry: In the oil and gas sector, pipelines are often exposed to harsh environmental conditions and corrosive substances. Pipeline PP Heat Shrinkable Sleeves are used to protect field welded joint of oil and gas pipelines from moisture ingress and chemical exposure, ensuring safe and efficient operation.
Water Treatment Facilities: In water treatment plants, pipelines are susceptible to corrosion due to the presence of water and various chemicals. The heat shrinkable sleeves provide a protective layer that prevents corrosion, ensuring the integrity and safety of the water supply system.
Chemical Processing: In chemical processing facilities, pipelines transport various corrosive substances. The sleeves act as a barrier, protecting the pipeline from chemical damage and preventing leaks that could lead to environmental contamination.
Marine Applications: In marine environments, pipelines are exposed to saltwater and humidity, which can accelerate corrosion. The heat shrinkable sleeves provide a protective seal that helps prevent corrosion and damage, ensuring reliable performance in harsh marine conditions.
Construction and Plumbing: In construction and plumbing applications, these sleeves are used to protect pipes from physical damage and environmental exposure. Their moisture-resistant properties make them ideal for use in environments where pipes are exposed to water or chemicals.
Conclusion
In summary, Pipeline PP Heat Shrinkable Sleeves are a versatile and effective protective solution for various applications. Their numerous advantages, including corrosion resistance, excellent insulation, durability, and ease of application, make them essential for safeguarding pipelines in the oil and gas, water treatment, chemical processing, and marine industries. By ensuring the reliability and longevity of critical systems, these heat shrinkable sleeves play a crucial role in maintaining the integrity of pipeline infrastructure.
Technical Data
Item | Test temperature | Unit | Result | Test method |
PP backing | ||||
Tensile strength | 23℃ | MPa | ≥30 | ASTM D638 |
Elongation | 23℃ | % | ≥550 | ASTM D638 |
Hardness | 23℃ | Shore D | ≥61 | ASTM D2240 |
Water absorption,24h | 23℃ | % | ≤0.1 | ASTM D570 |
Volume resistance | —— | Ω.cm | ≥2*10^16 | ASTM D257 |
Low temperature brittleness | —40℃ | pass | ASTM D746 | |
Dielectric strength | —— | KV/mm | ≥25 | ASTM D-149 |
Adhesive | ||||
Melt point | —— | ℃ | 154 | ASTM D3418 |
Lap shear strength | 23℃ | MPa | 5.5 | ISO21809-3 |
100℃ | MPa | 0.55 | ISO21809-3 | |
Low temperature brittleness | -40℃ | —— | pass | ASTM D746 |
Ring-and-ball softening point | —— | ℃ | ≥150℃ | GB/T 4507 |
Installed sleeve | |||||
Highest design temperature | —— | ℃ | 100 | —— | |
Thickness | —— | mm | backing≥1.0 adhesive≥1.5 | ISO21809-3 Appendix A | |
Cathodic disbandment, 28d | 23℃ | mm | 7.0 | ISO21809-3 | |
95℃ | mm | 15.0 | |||
Peeling strength （10mm/min） | To steel with primer | 23℃ | N/mm | 9.8 | ISO21809-3 Appendix D |
100℃ | 3.1 | ||||
To coating layer | 23℃ | 6.4 | |||
100℃ | 2.4 | ||||
28d,Tmax , peeling | To steel with primer | 23℃ | N/mm | 8.5 | ISO21809-3 Appendix I |
To coating layer | 5.5 | ||||
Ordering Information | ||
Select sleeve width that will overlap onto the mill-applied coating by 2 inches( 50mm) minimum on each side of the weld joint. Take a 10% shrinkage during installation of sleeve width into account when calculating the minimum sleeve width. | Range for available dimension: | |
Sleeve length for 32 inch pipe | Length of PP shrink sleeves | |
Sleeve width | We can provide 450mm, 480mm, 500mm, 520mm and 550mm supplied PP shrink sleeves width. | |
Sleeve thickness | We can provide 2.2mm, 2.5mm, 2.8mm , 3.0mm and 3.2mm supplied PP shrink sleeves thickness. | |
Primer thickness | There are two kinds of primer application way, wet film and dry film. We can provide 120um, 150um, 200um, 300um and 400um primer thickness. | |
