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Introducing CYCT 3LPP Pipeline Girth Weld Protection Heat Shrinkable Polypropylene Cuffs – the ultimate solution for safeguarding your pipeline infrastructure. Designed with advanced technology, these cuffs offer unparalleled protection against the harshest environmental conditions, ensuring the longevity and reliability of your pipelines.
Our heat shrinkable polypropylene cuffs are engineered to provide high-temperature resistance, making them ideal for applications in extreme heat environments up to 110℃. This feature ensures that your 3-layer PP pipeline remains protected even under the most demanding conditions, preventing any potential damage that could compromise the integrity of your system.
In addition to their thermal resilience, these cuffs deliver exceptional mechanical protection. They are designed to withstand physical impacts and stresses, ensuring that your girth welds are shielded from external forces that could lead to failures. This robust mechanical defense is crucial for maintaining the operational efficiency of your pipelines.
Moreover, our 3LPP cuffs excel in providing excellent insulation. This insulation not only helps in maintaining the temperature of the transported materials but also minimizes energy loss, contributing to overall operational efficiency. The superior insulation properties ensure that your pipeline system operates at optimal performance levels.
Corrosion resistance is another standout feature of our polypropylene cuffs. They are specifically formulated to resist the damaging effects of corrosive substances, ensuring that your pipelines remain intact and functional over time. This resistance to corrosion significantly reduces maintenance costs and extends the lifespan of your pipeline infrastructure.
In summary, CYCT 3LPP Pipeline Girth Weld Protection Heat Shrinkable Polypropylene Cuffs are the perfect choice for those seeking high-temperature resistance, mechanical protection, excellent insulation, and corrosion resistance. Invest in the future of your pipeline systems with our innovative and reliable protection solutions.
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 | —— | ℃ | 110 | —— | |
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. | |
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