Product Description
The 3PE (Three-Layer Polyethylene) coating stands as a leading advancement in corrosion-resistant technology. Its engineered structure integrates a fusion-bonded epoxy (FBE) inner layer for superior adhesion, a tough adhesive (AD) intermediate layer for strong molecular bonding, and a high-durability polyethylene (PE) outer layer that delivers long-term external protection.
This carefully designed multi-layer system provides outstanding mechanical robustness, excellent electrical insulation properties, and stable, reliable processing performance. In addition, its environmentally conscious composition makes it an ideal solution for protecting oil and gas transmission lines, municipal water pipelines, and modern district heating networks.
Technological processes
Pipe Loading → Conveying → Shot Blasting (Rust Removal) → Induction Heating → FBE Coating → AD & PE Extrusion Coating → Water Cooling → Conveying → Pipe End Grinding → Unloading
Main Equipment Composition
Surface Treatment Excellence: Featuring a robust shot blasting machine, complemented by an efficient cyclone dust collector and a high-performance pulse dust remover, ensuring impeccable surface treatment.
Advanced Heating System: Utilizing state-of-the-art induction heating equipment to deliver consistent thermal energy, optimizing the coating process.
Comprehensive Coating System: Equipped with an FBE powder coating unit, an adhesive extruder, and a PE extruder, ensuring a seamless and durable coating application.
Effective Cooling System: Incorporating a water spraying and cooling device to maintain ideal temperatures and enhance coating quality.
Efficient Conveying System: Featuring a sophisticated pipe loading/unloading platform and turning rollers for smooth and seamless operations.
Intelligent Control System: Powered by a cutting-edge PLC automatic control system, delivering precise and reliable process management.
Auxiliary Equipment Excellence: Includes a PE beveling machine, a hydraulic lifting system, and a comprehensive exhaust & ventilation system to support seamless operations.
Our Advantages
Cost Reduction - Enjoy unprecedented cost-efficiency with our product, offering high sealing performance that ensures substantial energy savings while being environmentally friendly.
Long Service Life - Experience hassle-free installation and construction with our product, boasting an impressive lifespan of up to 30-50 years, ensuring long-term durability and reliability.
Excellent Impact Resistance - Our product excels in impact resistance, maintaining exceptional performance even at low temperatures, with a remarkable low water absorption rate that enhances its structural integrity.
Superior Anti-Corrosion Performance - Benefit from top-notch anti-corrosion protection through a straightforward and cost-effective process, ensuring your investment's longevity and reliability.
Fully Automatic Operation - Our advanced PLC control system, equipped with intelligent sensors, offers precise and efficient operation, meticulously monitoring position, speed, and energy levels for optimal performance.
Product Parameters
Main Equipment (Please contact us for customizing your production line)
| No. |
Equipment name |
Notes |
| 1. |
External Pipe Shot Blasting Line |
|
| 2. |
Internal Pipe Shot Blasting Line |
|
| 3. |
Medium-Frequency Induction Heating System |
|
| 4. |
Epoxy Powder Spraying Unit |
|
| 5. |
AD Adhesive Extrusion Unit |
|
| 6. |
PE Polyethylene Extrusion Unit |
|
| 7. |
Cooling Unit |
|
| 8. |
PE Beveling Unit |
|
| 9. |
High-Pressure Airless Sprayer |
|
| 10. |
Curing Oven Heating & Drying Unit |
|
| 11. |
Marking Spraying Unit |
|
| 12. |
Catalytic Combustion Environmental Protection Unit |
|
| 13. |
Others by orders |
|
Applications
The remarkable 3-layer PE coated steel pipes from Qingdao Huashida Machinery Co., Ltd. are ingeniously designed for a diverse range of applications, including:
Oil and gas transmission pipelines - expertly engineered to deliver unparalleled long-term protection against both corrosion and external damage, ensuring the safe transport of vital resources.
Urban gas and water supply systems - meticulously crafted to guarantee safe, clean, and reliable transport of essential fluids, enhancing the efficiency and safety of urban infrastructure.
District heating networks - designed to excel in maintaining insulation and resistance to corrosion, even under challenging high-temperature conditions, ensuring seamless service delivery.
Underground and industrial anti-corrosion projects - providing robust, long-lasting protection for both buried and exposed steel pipelines, safeguarding structural integrity across diverse environments.
Global Application:
This state-of-the-art coating technology has been triumphantly applied in monumental infrastructure projects, securing its reputation both domestically and on an international scale.
Our products have successfully reached a global audience, with exports spanning Europe, the Middle East, Central Asia, Africa, Russia, and numerous other regions worldwide.
Company Profile
Qingdao Huashida Machinery Co., LTD, a leading powerhouse in manufacturing, a diverse range ofplastic pipe machinery solutions, as well as municipal pipe machinery, along with cutting-edgepipe insulation & advanced anticorrosiontechnologies and robust machinery.We also specialize in pipe jointing &innovative anticorrosion materials,backed by over 21 years of unparalleled production excellence.
Our flagship products include:
1. High-Density Polyethylene (HDPE) jacket pipe lines for pre-insulated pipes, spanning sizes from 110mm to 2000mm.
2. State-of-the-art Rigid pre-insulated pipe production lines.
3. Versatile Flexible pre-insulated pipe (PERT) production lines.
4. Steel pipe anti-corrosion coating lines featuring FBE, 2LPE, and 3LPE technologies.
5. Advanced Steel pipe derusting lines for optimal surface preparation.
6. Comprehensive PE pressure pipe/Water and Gas supply pipe production lines.
6. PP/PE plastic board, sheet, and geomembrane production lines.
7. Specialized NBR PVC Thermalinsulation tube and plate production lines.
8. Comprehensive pipeline anti-corrosion materials and instruments, including heat shrink joint coating sleeves, electro-fusion weldable joint sleeves, portable welding guns (extruders), and PE PP welding rods.
We proudly serve over 400 international clients, exporting our top-tier products to countries such as Kazakhstan, Uzbekistan, Iran, Turkey, Russia, Nigeria, and many more.
Our dedicated team
consistently ensures timely delivery,
participates in prestigious exhibitions,
and upholds industry-leading certifications.
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