输油输气管道焊接接头用80℃三层热缩套简介
80℃3层热缩套是一种先进的解决方案，专为管道现场焊接接头的防腐而设计，在温度波动和潮湿的环境中特别有效。这种创新产品主要用于石油和天然气、水和废水行业，在这些行业中，管道系统的完整性至关重要。
特性
热缩套的三层结构包括：外层由耐用的聚乙烯或聚丙烯材料制成，中间层具有优异的粘合性能，内层增强了套筒的耐腐蚀和环境因素的能力。套管在加热时收缩，在管道接头周围形成紧密密封，有效防止水分进入并防止腐蚀。它可以承受高达80℃的温度，使其适用于需要耐热性的各种应用。
应用
这些热缩套特别适用于埋地钢管管道的环焊缝，特别是那些涂有3层聚乙烯（3LPE）、3层聚丙烯（3LPP）或熔合环氧树脂（FBE）的管道。它们非常适合在恶劣环境中使用，包括海上设施和土壤酸度高的地区。热缩套管也用于现有管道的维修和维护，为延长管道系统的使用寿命提供了可靠的解决方案。
安装
80℃三层热缩套安装简单。这个过程从表面准备开始，在那里清洗管道接头以去除任何污染物。然后将环氧粘合剂涂在制备好的表面上。热缩套管缠绕在接头周围，用热风枪或其他加热装置加热。当套筒升温时，它会在接头周围紧密收缩，确保安全防水的密封。这种方法不仅提高了套管的保护质量，而且确保了与管道表面的持久粘合。
总而言之，80℃3层热缩套管是现代油气管道保护策略的重要组成部分，具有坚固耐用的特性，用途广泛，安装方法简便，有助于管道系统的使用寿命和可靠性。
技术参数：
Property | Test temp. | Unit | Requirement | Test result | Test method |
Thickness | — | mm | ≥ 0.85 × nominal value | 0.88 × nominal value | Annex A
ISO21809-3 |
Holiday detection at 5 kV/mm + 5 kV | — | — | no holiday | no holiday | Annex B
ISO21809-3 |
Impact resistance (holiday detection at 5 kV/mm 5 kV after recovery) | 20℃ | J/mm | ≥ 5 | 6.8 | Annex G
ISO21809-3 |
Indentation resistance (holiday detection at 5 kV/mm 5 kV after recovery)
Residual thickness | 50℃ | N/m㎡ | 1.0 | 1.0 | Annex H
ISO21809-3 |
— | mm | ≥ 0.6 | 1.26 |
Cathodic disbondment at 30 days | 23℃ | mm | ≤ 10.0 | 6.5 | Annex F
ISO21809-3 |
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 D
ISO21809-3 |
50℃ | N/mm | ≥ 0.20 | 0.46 |
Peel strength at 10 mm/min
to pipe surface and to plant coating | 23℃ | N/mm | ≥ 0.4 | 8.2 | Annex D
ISO21809-3 |
Peel strength at 10 mm/min
to pipe surface after 28-day
hot-water immersion test at Tmax limited as per Annex I | 23℃ | N/mm | ≥ 0.2 | 7.0 | Annex I
ISO21809-3 |
Peel strength at 10 mm/min
to plant coating after 28-day
hot-water immersion test at Tmax limited as per Annex I | 23℃ | N/mm | ≥ 0.4 | 7.5 | Annex I
ISO21809-3 |
Lap shear strength at 10 mm/min | 23℃ | N/m㎡ | ≥ 0.05 | 3.8 | Annex L
ISO21809-3 |
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 N
ISO21809-3 |
23℃ | P100/P70 | ≥ 0.80 | 0.92 |
23℃ | A100/A70 | ≥ 0.80 | 0.88 |
订单信息 |
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 sleeves
The 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. |
