OEM China FRY Heat Shrinkable Tubular Sleeve Factory - Anti-Corrosion Solution for Pipeline Weld Joints Suppliers Suppliers, Factories

The CYCT FRY heat-shrinkable tubular sleeve is a specialized anti-corrosion solution developed for buried pipeline weld joints. As a leading product from a reputable China factory, it effectively addresses the corrosion challenges faced by pipeline joints in underground environments. This product is ideal for a variety of applications, including buried oil and gas pipelines, municipal water supply and drainage systems, and industrial process pipelines. By preventing corrosion caused by soil moisture, microbial activity, and underground chemical substances, CYCT FRY significantly extends the lifespan of pipeline systems. Partner with trusted suppliers in the industry to ensure reliable protection for your infrastructure

Product Description

Product Introduction

A key advantage of the FRY heat-shrinkable tubular sleeve is its broad compatibility: it complies with mainly standard pipeline coatings (such as 2LPE, FBE, and mastic coatings) and outer jackets. It eliminates the risk of coating incompatibility and ensures the integrity of the entire pipeline anti-corrosion system, reducing maintenance costs for later repairs.
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Three-Layer Structured Design

Three-Layer Structured Design for Superior Performance

The FRY heat-shrinkable tubular sleeve adopts a scientific three-layer composite structure, each layer playing a critical role in enhancing anti-corrosion efficiency and durability:

  • Primer Layer: Solvent-Free Two-Component Liquid Epoxy as the bottom anticorrosion layer. With its strong adhesion to bare steel and existing pipeline coatings, it forms a tight, chemical-resistant barrier to prevent the pipeline from corrosion.
  • Intermediate Layer: The second layer of the tubular sleeve is High Shear Strength Copolymer Adhesive. Its high shear strength ensures the tubular sleeve stays firmly attached to the pipeline and prevents the pipeline from corrosion even under soil pressure, pipeline thermal expansion, or minor ground movement.
  • Backing Layer: The third layer Radiation Cross-Linked Polyethylene backing. The outer backing enjoys high mechanical strength, impact resistance, and weather resistance. After heat shrinking, it forms a rigid, seamless protective shell that resists soil abrasion, root penetration, and external impacts—effectively shielding the weld joint from physical damage during backfilling and long-term operation.
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Technical Data

No. Property Unit Test Method Typical Value
1 Max. Operating Temperature 50℃
PE Backing
2 Tensile Strength MPa ASTM D-638 24.6
3 Elongation % ASTM D-638 640
3 Hardness Shore D ASTM D-2240 45
4 Volume Resistivity Ohm·cm ASTM D 257 10*10^17
5 Dielectric Strength KV/mm ASTM D-149 32.3
Adhesive
6 Softening point ASTM E 28 94
7 Lap Shear@23℃ N/cm2 ISO21809-3 90
Installed System
8 Peel Strength @23℃ N/cm ISO21809-3 56N/cm
9 Impact Resistance J ASTM G-14 ≥15J
10 Indentation Resistance ISO21809-3 Pass
11 Cathodic Disbondment @23℃, 28 days ISO21809-3 13mm rad

Application

  • Oil & gas pipelines
  • Water pipelines
  • Compatible line coating: PE, FBE, Coal Tar
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Specification (for Pipe OD < 159mm)

Product size Outer diameter Tubing diameter Inner diameter after shrink Thickness before shrink
DN15*250 22 Φ30 15 1.5+0.3
DN15*300 22 Φ30 15 1.5+0.3
DN15*350 22 Φ30 15 1.5+0.3
DN15*450 22 Φ30 15 1.5+0.3
DN20*350 27 Φ40 20 1.5+0.3
DN20*450 27 Φ40 20 1.5+0.3
DN25*350 34 Φ50 25 1.5+0.3
DN25*450 34 Φ50 25 1.5+0.3
DN32~40*350 42/48、50 Φ60 30 1.5+0.3
DN32~40*450 42/48、50 Φ60 30 1.5+0.3
DN50*350 57、60 Φ80 40 1.5+0.3
DN50*450 57、60 Φ80 40 1.5+0.3
DN65*350 76 Φ90 45 1.5+0.3
DN65*450 76 Φ90 45 1.5+0.3
DN65*500 76 Φ90 45 1.5+0.3
DN80*350 89 Φ120 60 1.5+0.3
DN80*450 89 Φ120 60 1.5+0.3
DN80*500 89 Φ120 60 1.5+0.3
DN100*350 108、114 Φ160 80 1.5+0.3
DN100*500 108、114 Φ160 80 1.5+0.3

Specification (for Pipe OD ≥ 159mm)

Serial No. Specification Serial No. Specification
1 FRYΦ159×500—1.2/1.0 10 FRYΦ508×500—1.5/1.0
2 FRYΦ168×500—1.2/1.0 11 FRYΦ529×500—1.5/1.0
3 FRYΦ219×500—1.2/1.0 12 FRYΦ610×500—1.5/1.0
4 FRYΦ273×500—1.2/1.0 13 FRYΦ711×500—1.5/1.0
5 FRYΦ325×500—1.2/1.0 14 FRYΦ813×500—1.5/1.0
6 FRYΦ355×500—1.2/1.0 15 FRYΦ914×500—1.5/1.0
7 FRYΦ406×500—1.5/1.0 16 FRYΦ1016×500—1.5/1.0
8 FRYΦ426×500—1.5/1.0 17 FRYΦ1219×500—1.5/1.0
9 FRYΦ457×500—1.5/1.0 18 FRYΦ1350×500—1.5/1.0

Product Size

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Frequently Asked Questions

What is the maximum operating temperature for FRY heat-shrinkable tubular sleeves?
The maximum operating temperature is 50℃, making it suitable for most standard pipeline applications in oil, gas, and water transportation systems.
What pipeline coatings are compatible with FRY heat-shrinkable sleeves?
FRY sleeves are compatible with standard pipeline coatings including 2LPE, FBE (Fusion Bonded Epoxy), Coal Tar, and mastic coatings, ensuring broad applicability and eliminating coating incompatibility risks.
How does the three-layer structure enhance corrosion protection?
The three-layer design combines a solvent-free epoxy primer for chemical resistance, a high shear strength copolymer adhesive for secure bonding, and a radiation cross-linked polyethylene backing for mechanical protection, creating a comprehensive anti-corrosion barrier.
What pipe diameter range can FRY heat-shrinkable sleeves accommodate?
FRY sleeves are available for pipes ranging from DN15 (22mm outer diameter) up to Φ1350mm, covering small to large diameter pipelines with various length options from 250mm to 500mm.
What is the typical peel strength of installed FRY sleeves?
The installed system achieves a peel strength of 56N/cm at 23℃ according to ISO21809-3 testing standards, ensuring strong adhesion to the pipeline surface under normal operating conditions.
Are FRY heat-shrinkable sleeves resistant to cathodic disbondment?
Yes, testing shows a cathodic disbondment radius of only 13mm after 28 days at 23℃ per ISO21809-3 standards, demonstrating excellent resistance to coating separation under cathodic protection systems.

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