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The 3PE (Three-Layer Polyethylene) heat shrink sleeve is a specialized product designed for the corrosion protection of pipelines, particularly at welded joints. It consists of a three-layer structure that provides excellent mechanical protection and corrosion resistance, making it ideal for use in various demanding environments.
→ Suitable for use on pipelines operating up to 80℃
→ Suitable for the layer coating of 2PE, 3PE, FBE and thermal insulation pipeline.
→ Long-term effectiveness of guarantee.
→ Sound geological environment and weather resistance.
Property | Test temp. | Unit | Requirement | Test result | Test method |
Thickness | — | mm | ≥ 0.85 × nominal value | 0.88 × nominal value | Annex AISO21809-3 |
Holiday detection at 5 kV/mm + 5 kV | — | — | no holiday | no holiday | Annex BISO21809-3 |
Impact resistance (holiday detection at 5 kV/mm 5 kV after recovery) | 20℃ | J/mm | ≥ 5 | 6.8 | Annex GISO21809-3 |
Indentation resistance (holiday detection at 5 kV/mm 5 kV after recovery)Residual thickness | 50℃ | N/m㎡ | 1.0 | 1.0 | Annex HISO21809-3 |
— | mm | ≥ 0.6 | 1.26 | ||
Cathodic disbondment at 30 days | 23℃ | mm | ≤ 10.0 | 6.5 | Annex FISO21809-3 |
50℃ | mm | ≤15 | 10 | ||
Peel strength at 10 mm/min to pipe surface primed with epoxy and to plant coating | 23℃ | N/mm | ≥ 2.50 | 8.5 | Annex DISO21809-3 |
50℃ | N/mm | ≥ 0.20 | 0.46 | ||
Peel strength at 10 mm/minto pipe surface and to plant coating | 23℃ | N/mm | ≥ 0.4 | 8.2 | Annex DISO21809-3 |
Peel strength at 10 mm/minto pipe surface after 28-dayhot-water immersion test at Tmax limited as per Annex I | 23℃ | N/mm | ≥ 0.2 | 7.0 | Annex IISO21809-3 |
Peel strength at 10 mm/minto plant coating after 28-dayhot-water immersion test at Tmax limited as per Annex I | 23℃ | N/mm | ≥ 0.4 | 7.5 | Annex IISO21809-3 |
Lap shear strength at 10 mm/min | 23℃ | N/m㎡ | ≥ 0.05 | 3.8 | Annex LISO21809-3 |
50℃ | N/m㎡ | ≥ 0.07 | 0.39 | ||
Thermal ageing resistance (aged at Tmax + 20 °C)– Elongation at break (E100/E0)– Peel strength to pipe surface (P100/P100) | 23℃ | E100/E0 | ≥ 0.75 | 0.89 | Annex NISO21809-3 |
23℃ | P100/P70 | ≥ 0.80 | 0.92 | ||
23℃ | A100/A70 | ≥ 0.80 | 0.88 |
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 | Length of PE shrink sleevesThe length should be calculated as the following formula:L=π×D×1.07+120mm (when pipe OD ≤42inch) L=π×D×1.07( when pipe OD ＞42inch) | |
Sleeve width | We can provide 450mm, 480mm, 500mm, 520mm and 550mm supplied PE shrink sleeves width. | |
Sleeve thickness | We can provide 1.8mm, 2.0mm, 2.2mm, 2.5mm, 2.8mm , 3.0mm and 3.2mm supplied PE 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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