HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
Negotiable
Brand:
Huashida
Product Description
HDPE Pre-Insulated Pipe Field Joint Heat Shrink Sleeve
Durable & Efficient Insulation Solution
Product Introduction
The Qingdao Huashida Radiation Cross-linked Polyethylene (PE) Heat Shrink Sleeve is an advanced anti-corrosion solution designed for the field application of 3-layer polyethylene (3LPE) coating systems. It is ideal for the protection and repair of welded joints in steel pipelines used in oil, gas, and water supply systems.
This product replicates the factory-applied 3LPE structure and performance in field conditions, ensuring durable and reliable protection for pipeline joints.
Structure and Composition
The heat shrink sleeve is composed of two primary layers:
- Radiation Cross-linked Polyethylene (PE) Backing - Offers superior mechanical strength and protection from external damage.
- Special Hot-Melt Adhesive Layer - Ensures strong adhesion to the steel surface and seamless bonding with the epoxy primer.
This system is applied in conjunction with a solvent-free two-component epoxy primer, forming a true 3-layer field-applied coating system.
Installation Process
- Surface Preparation - Clean and prepare the steel surface at the weld joint area.
- Epoxy Primer Application - Apply the solvent-free two-component epoxy primer.
- Sleeve Application - Wrap the heat shrink sleeve over the wet primer.
- Heat Shrinking - Apply heat to shrink the sleeve tightly around the joint.
- Curing and Protection - The epoxy cures, creating strong chemical and mechanical bonds.
Application Areas
- Field joint corrosion protection for oil and gas pipelines
- Field joint corrosion protection for water pipelines
- Repair and maintenance of factory-applied 3LPE coatings
Key Features
- Material: High-quality PE
- Ensures secure heat shrink sealing for pre-insulated steel pipe field joints
- Available in standard or customized options
- Standard black, with customized alternatives upon request
- Easy installation using a gas gun
- 110-2000mm to fit various pipeline dimensions
- High production capacity (2000 sets/day)
- Reliable performance and long-lasting protection
Technical Specifications
PE Backing Layer
| Test Item | Unit | Requirement | Result | Test Method |
|---|---|---|---|---|
| Tensile Strength | MPa | ≥17 | 19.47 | ASTM D638 |
| Elongation | % | ≥400 | 626 | ASTM D638 |
| Vicat Softening Point | ºC | ≥90 | 92 | ASTM D1525 |
| Brittleness Temperature | ºC | ASTM D2671C | ||
| Dielectric Strength | MV/m | ≥25 | 33.13 | ASTM D149 |
| Volume Resistivity | Ω*m | ≥1×10¹³ | 1.1×10¹³ | ASTM D257 |
| Environmental Stress Crack Resistance | h | ≥1000 | >1000 | GB/T 1842 |
Chemical Resistance
| Chemical | Test Item | Requirement | Result |
|---|---|---|---|
| 10% HCl | Tensile Strength | ≥85% | 104.9 MPa |
| Elongation | ≥85% | 96.3% | |
| 10% NaOH | Tensile Strength | ≥85% | 102.1 MPa |
| Elongation | ≥85% | 95.6% | |
| 10% NaCl | Tensile Strength | ≥85% | 108.3 MPa |
| Elongation | ≥85% | 94.1% |
Thermal Aging (150 ºC, 168h)
| Test Item | Requirement | Result |
|---|---|---|
| Tensile Strength | ≥14 MPa | 20.7 MPa |
| Elongation | ≥300% | 630% |
Adhesive Layer Specifications
| Test Item | Unit | Requirement | Result | Test Method |
|---|---|---|---|---|
| Softening Point | ºC | ≥90 | 90.1 | ASTM E28 |
| Brittleness Temperature | ºC | ASTM D2671C | ||
| Lap Shear Strength | MPa | ≥1.0 | 1.5 | ASTM D1002 |
| Peel Strength (23±2ºC) | N/cm | ≥70 | Steel: 145.6 Primer: 205.9 PE Layer: 190.0 |
ASTM D1000 |
Epoxy Primer Specifications
| Test Item | Requirement | Result | Method |
|---|---|---|---|
| Shear Strength of Cured Primer | ≥5.0 MPa | 12 MPa | SY/T0041 |
Compliance Standards
This product complies with major national and international standards, including:
- GB/T 23257-2009
- SY/T 4054-2003
- EN 12068
- DIN 30672
- GOST R51164-98
Product Forms & Ordering Information
A complete product set includes:
- Heat shrink sleeve
- Closure patch
- Individually packed epoxy primer
Maximum Operating Temperature: 60 ºC
Available formats:
- Pre-cut sleeve with separate closure patch
- Tubular sleeve
- Roll tape (closure patch ordered separately)
Pre-Cut Sleeve Specifications (Customizable)
| Pipe Size (mm) | Sleeve Length (mm) | Patch Length (mm) | Patch Width (mm) |
|---|---|---|---|
| Φ159 × 500 | 670 | 500 | 80 |
| Φ219 × 500 | 860 | 500 | 100 |
| Φ273 × 500 | 1000 | 500 | 100 |
| Φ325 × 500 | 1200 | 500 | 100 |
| Φ355 × 500 | 1300 | 500 | 100 |
| Φ406 × 500 | 1460 | 500 | 120 |
| Φ508 × 500 | 1800 | 500 | 120 |
| Φ610 × 500 | 2170 | 500 | 120 |
| Φ711 × 500 | 2500 | 500 | 150 |
| Φ813 × 500 | 2880 | 500 | 150 |
| Φ1016 × 500 | 3480 | 500 | 150 |
| Φ1219 × 500 | 4120 | 500 | 200 |
| Φ1420 × 500 | 4780 | 500 | 200 |
Roll Tape Specifications (Customizable)
| Width (mm) | Standard Length | Thickness |
|---|---|---|
| 100-600 | 5m, 10m, 15m, 20m, 30m per roll | PE Layer: 1.2 mm Adhesive Layer: 0.8 mm |
Why Choose HUASHIDA?
- 20+ Years of Manufacturing Experience
- Exported to Global Markets
- Trusted Quality and International Reputation
- Participation in Major Industry Exhibitions
- Modern Production Facilities
- Professional Technical Team
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Qingdao Huashida Machinery Co., Ltd.
Location
69 Jinsheng Second Road Chengyang District, Qingdao, Shandong, China
Contact Person
yuki