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Specifications
Heat Shrinkable Coating Materials1. Oil Pipeline Girth Welding Coating
2. Good anticorrosion
3. APL pipe
4. DN105-DN1200mm
Heat Shrinkable Coating Materials
1.1 Product Structure
- The inner layer is two-components epoxy primer which coated on steel pipe;
- Intermediate level is special hot melt adhesive;
- Outer layer is modified radiation crossing linking polyethylene backing.
1.2 Features & Benefits:
Heat Shrinkable Sleeves provide great corrosion protection, Superior resistance to Cathodic Disbondment and excellent durability against abrasion and chemical attack. The result is effective, good performance of sealing, wide application, easy to operate and preheating temperature low (50 °C) ,long term protection against corrosion.
- Cross-linked backing provides superior abrasion, mechanical and chemical attack resistance.
- High performance adhesive provides excellent resistance to Cathodic Disbondment to ensure long-term corrosion protection.
- Just-in-time customized lengths allow bulk rolls to be field cut to protect any pipe size
- Open sleeve configuration allows the product to be applied after the pipeline has been welded and cleaned.
1.3 Specification( mm)
Pipeline size: from Ø 108 to Ø 1554 ( 4’’---60’’)
Sleeves width: 100mm, 150mm,200mm, 300mm,450mm,500mm,600mm,900mm
Closure patch: 100mm, 150mm,200mm (4’’, 6’’, 8’’)
Model: HSS 3600/505/ Ø 1066.8
HSS--Heat shrinkable sleeves
3600------Roll length(mm)
505----- -Roll Width (as supplied)
Ø 1066.8----Joint or pipeline Diameter
1.4 Technical Datas
Width deviation (max) |
±10% width or 0.25 in.(6mm), |
AWWAC216-5.3.1 |
Dielectric strength |
400 V/mil(15 V/um) |
ASTM D149 |
Volume resistivity |
1014 ohm-cm |
ASTM D257 |
Adhesion to steel |
15 lb/in.width (25 N/cm) |
ASTM D1000 |
Lap shear |
12 psi |
ASTM D1002 |
Heat shock |
No visual cracking,flowing, or dripping |
AWWAC216-5.3.8 |
Tensile strength |
2200 psi min |
ASTM D638 |
Elongation 23 |
400% min |
ASTM D638 |
Impact resistance |
25 in.-lb(282cm-N) |
ASTM G14 |
Impact Resistance |
ASTM G14 |
≥50 |
|
Cathodic Disbondment at 23°C 30 days mm rad |
ASTM G 8 |
≤25 |
Dielectric Breakdown Voltage 23°C MV/M |
ASTM D 149 |
≥15 |
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