Product Description
External 3LPE anti-corrosion and internal epoxy liquid coating spray is a highly efficient method for protecting steel pipes from corrosion.
The external 3PE anti-corrosion structure consists of an epoxy powder primer, an adhesive middle layer, and an outer polyethylene layer. The epoxy powder primarily provides corrosion resistance, the adhesive enhances bonding between layers, and the polyethylene offers excellent mechanical protection and environmental durability.
The internal epoxy liquid coating spray provides strong adhesion and exceptional chemical corrosion resistance, effectively preventing corrosion inside steel pipes caused by conveyed media (such as oil, gas, water, etc.). This corrosion protection method is widely used in oil and natural gas transmission pipelines, water supply and drainage pipelines, and other fields, significantly extending the service life of steel pipes.
Huashida delivers high-quality, cost-effective, and innovative coating solutions-featuring internal liquid coatings and external 3LPE-designed to extend pipeline service life, lower maintenance expenses, and ensure reliable project delivery for clients across the globe.
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
Qingdao Huashida's 3-layer PE Coated Steel Pipes are designed for a wide range of applications, including:
Oil & Gas Pipelines: Long-term protection against corrosion and damage, ensuring safe transport.
Urban Gas & Water Systems: Reliable and clean transport of essential fluids, enhancing infrastructure safety.
District Heating: Excellent insulation and corrosion resistance, even at high temperatures.
Underground & Industrial Anti-Corrosion: Robust protection for both buried and exposed pipelines.
Global Reach:
This technology is widely used in major infrastructure projects, with exports to Europe, the Middle East, Central Asia, Africa, Russia, and more.
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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