Radiation Cross-Linked PE Heat Shrink Sleeve for petroleum Pipeline Field Joint
Our high-performance radiation cross-linked PE heat shrink sleeve is a professional 3LPE pipeline field joint repair material exclusively developed for anti-corrosion protection of girth weld joints on buried oil & gas transmission pipelines. This standard 3LPE field joint coating solution is used worldwide for long-distance pipeline construction and maintenance.
Every 3LPE anti-corrosion coated steel pipe leaves bare steel exposed at every girth weld joint during field installation. This radiation cross-linked PE heat shrink sleeve restores the full 3LPE anti-corrosion protection standard at every field joint, eliminating the most common failure point in buried oil & gas pipeline anti-corrosion systems.
This 3LPE field joint repair sleeve adopts premium two-layer composite construction: radiation cross-linked polyethylene backing (tensile strength 19.47MPa, elongation 626%) matched with high-adhesion imported hot melt adhesive (peel strength 145.6N/cm to steel) - delivering factory 3LPE-equivalent anti-corrosion protection at every buried pipeline girth weld joint.
Specifically engineered for 3LPE pipeline girth weld field joint anti-corrosion repair - where every buried oil & gas pipeline is most vulnerable to corrosion failure.
Supports easy torch-heating-only on-site installation - no special tools, no surface grinding, no complex equipment required.
Creates a continuous, solid, gap-free anti-corrosion barrier achieving the same corrosion protection standard as factory 3LPE steel pipe coating.
- 3LPE Field Joint Anti-Corrosion Repair: Restores full 3LPE-equivalent anti-corrosion protection at every buried pipeline girth weld joint
- Outstanding Chemical Resistance: Resists 10% HCl, NaOH, NaCl, and all harsh underground chemical media
- Extreme Temperature Range: Vicat softening point ≥90°C; brittleness temperature <-65°C
- Cathodic Protection Compatible: Dielectric strength ≥25MV/m; volume resistivity ≥1×10¹³Ω.m
- Long-Term Thermal Aging Resistance: Maintains structural integrity in buried 3LPE pipeline field joint service conditions
- Universal 3LPE Pipeline Joint Solution: Compatible with all 3LPE, 2LPE, FBE anti-corrosion coated steel pipe
- 3LPE Pipeline Field Joint Anti-Corrosion Coating - Primary application providing factory 3LPE equivalent anti-corrosion protection
- 2LPE Anti-Corrosion Coated Steel Pipe Weld Joint Repair - Restores full anti-corrosion system integrity
- FBE Coated Steel Pipe Girth Weld Joint Protection - Provides outer layer protection over FBE-coated pipeline field joints
- Pre-Insulated Pipe Girth Weld Joint Sealing - Seals district heating and chilled water pre-insulated pipe joints
- Municipal Drainage Corrugated Pipe Joint Anti-Corrosion - Provides waterproof and anti-corrosion joint protection
| NO | Test Item | Unit | Performance | Test Result | Test Method |
|---|---|---|---|---|---|
| 1 | Tensile Strength | MPa | ≥17 | 19.47 | ASTM D638 |
| 2 | Elongation | % | ≥400 | 626 | ASTM D638 |
| 3 | Vicat Softening Point | ºC | ≥90 | 92 | ASTM D1525 |
| 4 | Brittleness Temperature | ºC | <-65 | <-65 | ASTM D2671C |
| 5 | Dielectric Strength | MV/m | ≥25 | 33.13 | ASTM D149 |
| 6 | Volume Resistivity | Ω.m | ≥1*10¹³ | 1.1*10¹³ | ASTM D257 |
| 7 | Environment Stress Crack | h | ≥1000 | >1000 | GB/T1842 |
| NO | Test Item | Unit | Performance | Test Result | Test Method |
|---|---|---|---|---|---|
| 1 | Softening Point | ºC | ≥90 | 90.1 | ASTM E28 |
| 2 | Brittleness Temperature | ºC | <-15 | <-15 | ASTM D2671C |
| 3 | Lap Shear | MPa | ≥1.0 | 1.5 | ASTM D1002 |
| 4 | Peel Strength (Steel) | N/cm | ≥70 | 145.6 | ASTM D1000 |
| 5 | Peel Strength (Primer) | N/cm | ≥70 | 205.9 | ASTM D1000 |
| 6 | Peel Strength (PE layer) | N/cm | ≥70 | 190.0 | ASTM D1000 |
We supply three configurable styles of radiation cross-linked PE heat shrink sleeve for 3LPE pipeline field joint repair:
- Pre-cut heat shrink sleeve with separate closure patch - Standard configuration for most 3LPE oil & gas pipeline field joint repair applications
- Pre-cut heat shrink sleeve with pre-attached integrated closure patch - Streamlined single-component installation for faster 3LPE field joint coating construction
- Continuous heat shrink sleeve roll tape (closure patch ordered separately) - For high-volume 3LPE pipeline field joint repair projects requiring customized cut lengths
Available Specifications:
- Thickness: 1.2mm, 1.6mm, 1.8mm, 2.0mm, 2.5mm
- Width: 100mm, 200mm, 300mm, 500mm, 600mm, 900mm
- Roll length: 30m or 50m per roll
- Custom dimensions available for large-volume projects
Qingdao Huashida Machinery Co., Ltd. is a professional manufacturer with 21 years of experience specializing in 3LPE pipeline field joint repair materials - including radiation cross-linked PE heat shrink sleeves, electro-fusion weldable joint sleeves, and PE cold applied anti-corrosion tape.
Our main products include:
- Radiation Cross-Linked PE Heat Shrink Sleeves for 3LPE oil & gas pipeline field joint repair
- Steel pipe FBE/2LPE/3LPE anti-corrosion coating lines (36-4200mm)
- HDPE jacket pipe pre-insulated pipe production line (110-2200mm)
- Rigid PUR spray PE wrapping pre-insulated pipe production line (508-1620mm)
- Turnkey cold applied PE anti-corrosion tape production lines
- PE pressure pipe/water gas supply pipe production line
- Pipeline anti-corrosion materials and equipment
We have successfully collaborated with over 400 international customers, exporting to Kazakhstan, Uzbekistan, Iran, Turkey, Russia, Nigeria, and 60+ countries worldwide.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.