China China FRY Heat Shrinkable Tubular Sleeve by Suppliers and Factory for Pipeline Corrosion Protection Supplier, Factories

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China China FRY Heat Shrinkable Tubular Sleeve by Suppliers and Factory for Pipeline Corrosion Protection Supplier, Factories

CYCT FRY heat-shrinkable tubular sleeve is an innovative anti-corrosion solution meticulously designed by a leading manufacturer in China for protecting buried pipeline weld joints. This high-quality product is specifically engineered to combat corrosion challenges faced by underground pipelines, making it ideal for applications in buried oil and gas systems, municipal water supply and drainage networks, and industrial process pipelines. By effectively shielding against corrosion caused by soil moisture, microbial activity, and various underground chemical agents, our sleeves significantly enhance the longevity of pipeline systems. As a trusted supplier from a reputable factory in China, we are committed to delivering exceptional products that ensure the reliability and durability of your pipeline infrastructure

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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.

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:

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1. 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.

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2. 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.

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3. 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.

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

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Oil & gas pipelines

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Water pipelines

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Compatible line coating: PE, FBE, Coal Tar

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

Frequently Asked Questions

Q1: What pipeline coatings are compatible with FRY heat-shrinkable tubular sleeves?

FRY heat-shrinkable tubular sleeves are compatible with most standard pipeline coatings including 2LPE, FBE (Fusion Bonded Epoxy), mastic coatings, PE, and Coal Tar. This broad compatibility eliminates the risk of coating incompatibility and ensures the integrity of the entire pipeline anti-corrosion system.

Q2: What is the maximum operating temperature for FRY heat-shrinkable tubular sleeves?

The maximum operating temperature for FRY heat-shrinkable tubular sleeves is 50℃, making them suitable for most oil & gas and water pipeline applications under normal operating conditions.

Q3: How does the three-layer structure enhance corrosion protection?

The three-layer structure provides comprehensive protection: the primer layer (solvent-free epoxy) creates a chemical-resistant barrier with strong adhesion; the intermediate layer (high shear strength copolymer adhesive) ensures firm attachment under soil pressure and thermal expansion; and the backing layer (radiation cross-linked polyethylene) offers mechanical strength and impact resistance against external damage.

Q4: What pipe diameters can FRY heat-shrinkable tubular sleeves accommodate?

FRY heat-shrinkable tubular sleeves are available for a wide range of pipe diameters, from DN15 (22mm outer diameter) up to Φ1350mm. Different specifications are available for pipes with outer diameters less than 159mm and those 159mm or greater, ensuring proper fit and protection for various pipeline sizes.

Q5: What are the key performance characteristics of the PE backing layer?

The PE backing layer demonstrates excellent performance with a tensile strength of 24.6 MPa, elongation of 640%, hardness of 45 Shore D, and high volume resistivity of 10*10^17 Ohm·cm. It also provides superior dielectric strength of 32.3 KV/mm, ensuring both mechanical protection and electrical insulation.

Q6: How is the peel strength and impact resistance of the installed system?

The installed FRY heat-shrinkable tubular sleeve system demonstrates strong adhesion with a peel strength of 56N/cm at 23℃ and excellent impact resistance of ≥15J. These properties ensure the sleeve remains firmly attached and protected against physical damage during installation and long-term operation.

Product Detail

China China FRY Heat Shrinkable Tubular Sleeve by Suppliers and Factory for Pipeline Corrosion Protection Supplier, Factories

Product Description

Product Introduction

Three-Layer Structured Design

Technical Data

Application

Specification (for Pipe OD < 159mm)

Specification (for Pipe OD ≥ 159mm)

Product Size

Frequently Asked Questions

Related Products

Product Detail

China China FRY Heat Shrinkable Tubular Sleeve by Suppliers and Factory for Pipeline Corrosion Protection Supplier, Factories

Product Description

Product Introduction

Three-Layer Structured Design

Technical Data

Application

Specification (for Pipe OD < 159mm)

Specification (for Pipe OD ≥ 159mm)

Product Size

Frequently Asked Questions

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