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HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
Specifications
Brand Name :
Huashida
Model Number :
1.5-3.5mm
Certification :
ISO9001：2008， CE
Place of Origin :
Qingdao，China
Application :
Connecting and Welding Plastic Pipline
Size :
According to Customer′s Requirements
Specification :
EN253, EN448, EN728, ISO1133, ISO8501-1. ISO9001
HS Code :
3920999090
Description

HDPE Pre-Insulated Pipe Field Joint Heat Shrink Sleeve Durable & Efficient Insulation Solution

Product Description

PE 3-Layer Coating System for Welding Joint Closure Repair in 3LPE Steel Pipelines

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.

HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint ProtectionHDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint ProtectionStructure 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.

HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection


Working Principle & 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 onto the prepared pipe surface.
Sleeve Application
Wrap the heat shrink sleeve over the wet primer.
Heat Shrinking
Apply heat to shrink the sleeve tightly around the joint. The adhesive melts and flows, filling surface imperfections and bonding the sleeve firmly to the pipe.
Curing and Protection
As the epoxy cures, it creates strong chemical and mechanical bonds. The outer PE layer forms a solid protective barrier against moisture and mechanical damage.

Application fields

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
    HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint ProtectionHDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection

Key Features:
- Material: High-quality PE
- Ensures secure heat shrink sealing for pre-insulated steel pipe field joints
- Available in without treatment or customized options
- Standard black, with customized alternatives upon request
- Easy installation using a gas gun
- 110-2000mmto fit various pipeline dimensions
- Standard package for safe transport

Application: Ideal for insulating welded joints in heating pipelines and crude oil pipelines, the HDPE heat shrink casing provides a tight seal when heated, forming a seamless bond with the outer protective pipe. After shrinking, polyurethane foam is injected for complete thermal insulation.

High production capacity (2000 sets/day)
- Reliable performance

Ensure long-lasting pipeline insulation with HSD heat shrink casing - the smart choice for secure and efficient field joint sealing!

HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection

Heat shrinkable sleeve for Thermo Insulated Pipe
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
COMPARISIONS
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection

Product Parameters


TECHNICAL PARAMETERS

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 < -65 < -65 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 (150ºC, 168h)

Test Item Requirement Result
Tensile Strength ≥14 MPa 20.7 MPa
Elongation ≥300% 630%


HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection

Packaging & Shipping

HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection


Adhesive Layer

Test Item Unit Requirement Result Test Method
Softening Point ºC ≥90 90.1 ASTM E28
Brittleness Temperature ºC < -15 < -15 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

Test Item Requirement Result Method
Shear Strength of Cured Primer ≥5.0 MPa 12 MPa SY/T0041



Our Advantages

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: 60ºC

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

Company Profile

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
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint ProtectionHDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection

Detailed Photos


HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection

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HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection

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Product Detail
Brand Name :
Huashida
Model Number :
1.5-3.5mm
Certification :
ISO9001：2008， CE
Place of Origin :
Qingdao，China
Application :
Connecting and Welding Plastic Pipline
Size :
According to Customer′s Requirements
Contact Supplier
video
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection
HDPE Heat Shrink Sleeve For 3LPE Pipeline Joint Protection

Qingdao Huashida Machinery Co., Ltd.

Verified Supplier
2 Years
shandong, qingdao
Since 2003
Business Type :
Manufacturer
Main Products :
Pre-Insulated Pipe Production Line, 3LPE Coating Pipe Production Line, Polyurethane Spraying Foam Preinsulated Steel Pipe Making Machine
Total Annual :
3000000-5000000
Employee Number :
100~200
Certification Level :
Verified Supplier
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