| Hot Selling Pipes |
| Steel Wire Reinforced PE Composite Pipe |
Fiberglass Steel Wire Reinforced Composite Pipe |
HDPE Pipe |
PVC Pipe |
| Antistaic Flame Redartant Composite Pipe for Mining |
Anti-corrosion Composite Pipe |
Thermal Insulated Pipe |
Big Carliber Composite Steel Pipe |
Transportation: In the realm of efficient and long-distance transportation of oil, gas, and other essential commodities, pipes are absolutely indispensable. Large-diameter transmission pipelines play a pivotal role in transferring crude oil, natural gas, and refined products from their production sites to refineries, processing facilities, and key distribution hubs, ensuring seamless and continuous supply chains.
Epoxy & Plastic Coated Anti-Corrosion Steel Pipe: Designed to endure an array of challenging working conditions, these versatile pipes can be tailored with numerous robust anticorrosive solutions. Perfect for buried installations, trenchless traction, pipe jacking, and open-air applications, our comprehensive range of anticorrosion solutions includes:
- Buried: Featuring inner epoxy with outer PE, inner epoxy with outer 3PE, inner epoxy with outer 3PP, and fully coated with inner & outer epoxy for maximum protection.
- Pipe Jacking: Equipped with inner epoxy and outer 3PE, inner epoxy and outer 3PP, and inner epoxy enhanced with double-layer epoxy, ensuring durability and reliability.
- Trenchless Traction: Combining inner epoxy with outer 3PE, inner epoxy with outer 3PP, and inner epoxy with double-layer epoxy for superior performance in challenging environments.
- Open-Air Application: Featuring inner epoxy with an outer anti-UV coating, providing exceptional resistance against the elements.
Inner Epoxy Resin Outer Polyethylene Coating Composite Steel Pipe: This meticulously engineered steel pipe undergoes pre-treatment to ensure an inner surface shielded with fusion-bonded epoxy powder and an outer surface reinforced with polyethylene powder. The result is a high-performance, corrosion-resistant steel-plastic composite product that excels in demanding applications.
| Clamp Connection |
Flange Connection |
Experience unrivaled compatibility and convenience with our seamless connection method.
Our double-layer epoxy coating, meticulously crafted using premium epoxy resin, ensures exceptional compatibility for both inner and outer layers. This patented, solvent-free epoxy coating offers unmatched corrosion resistance, guaranteeing long-lasting durability.
Optimal Cathodic Protection
Our double-layer epoxy coating seamlessly integrates with cathodic protection systems, ensuring no interference and delivering peak performance.
Impressive Flexibility and Bending Resistance
Engineered with high molecular weight epoxy resin, our coating material provides outstanding flexibility and remarkable bending resistance, adapting to various operational demands.
Durable Scratch Resistance
The outer layer is enhanced with a modified epoxy coating, fortified with specialized scratch-resistant materials, ensuring superior scratch protection for longevity.
Exceptional High Temperature Resistance
Our double-layer epoxy anticorrosive steel pipes can withstand temperatures up to 110ºC, maintaining their structural integrity even under intense heat conditions.
1. Our pipeline series ranges from DN50 to DN3600 calibers, with lengths spanning from 6 to 16 meters.
2. We operate two state-of-the-art powder coating production lines and twelve twin-screw extruders, showcasing our advanced R&D in powder coating and polyethylene material modification.
3. As pioneers in various powder anticorrosion processes, we offer a wide array of techniques including suction coating, spraying, rolling coating, and dip coating.
4. Unique in the country, we seamlessly merge large-caliber steel pipe production, anti-corrosion processing, and anti-corrosion material manufacturing within a single enterprise.
5. Our socket-type anti-corrosion steel pipes ensure maximum safety and reliability, setting a benchmark in the industry.
| Nominal Diameter/ mm |
Inner Coating Layer /mm |
Outer coating layer,mm |
| Ordinary level |
Strengthen level |
| DN ≤65 |
>0.3 |
>0.6 |
>0.8 |
| 65≤DN≤150 |
>0.35 |
>0.8 |
>1.0 |
| 150≤DN≤300 |
>0.35 |
>0.8 |
>1.2 |
| 300≤DN≤800 |
>0.4 |
>1.0 |
>1.3 |
| 800≤DN≤1200 |
>0.45 |
>1.2 |
>1.8 |
| 1200≤DN≤3600 |
>0.45 |
>1.5 |
>1.8 |
| Note: can be customized as customer's needs. |
Production Technology
| Uniform Plastic Coating |
Comprehensive Automative Line |
High Quality Steel Roll |
| Biggest 3600 Production Line |
CNAS Labratory |
One-code track |
About Us
Shandong Donghong Pipe Industry Co., Ltd. (stock code: 603856), affectionately known as Donghong Co., Ltd., proudly situates its headquarters in Qufu, China - the revered birthplace of Confucius. As a premier pipeline manufacturer, exceptional pipeline engineering service provider, and adept general contractor, Donghong specializes in four pivotal categories: advanced pipelines for rainwater and sewage management, vital municipal projects, crucial industrial and mining applications, and significant national engineering ventures. Our thriving industrial ecosystem seamlessly integrates design institutes, financial entities, port logistics, construction teams, and a wide array of upstream and downstream enterprises. With an unwavering dedication to excellence, we strive to become a global leader in comprehensive pipeline system solutions, propelling the evolution of intelligent pipelines that transform human living and ensure the perpetual safety of pipeline transportation.
Donghong boasts a formidable team of over 200 elite R&D experts and an impressive portfolio of more than 100 pioneering patents. Leveraging prestigious national technology platforms such as the National Enterprise Technology Center, National CNAS Laboratory, Academician Expert Workstation, and Post-doctoral Workstation, we delve deeply into the digitalization, informatization, and intelligentization of pipeline engineering. Leading the charge in the engineering pipeline industry, we significantly contribute to strategic national projects and community enrichment initiatives, including the monumental South-to-North Water Diversion, Huangzhilin, Hanzhiwei, Beijing-New Zealand Expressway, One Belt, One Road initiatives, standardized farmland projects, urban and rural water supply integration, Liren gas, and centralized heat supply systems. Our extensive engagement in national key strategic projects and essential livelihood endeavors underscores our relentless commitment to innovation and excellence.
1. Does your product meet international standards?
Our products have proudly surpassed the benchmarks set by CE, BV, ISO, and WAR certifications, with every performance metric exceeding standard requirements. If you have any specific national standards in mind, please inform us. We will gladly verify or test our products accordingly to ensure they align with your criteria.
2. What services do you offer?
As an industry-leading manufacturing factory, we specialize in delivering premium-quality pipe products, pipe fittings, packaging, and shipping services. As a professional consulting firm, we provide expert project consulting, comprehensive pipe system solutions, and innovative design recommendations. Furthermore, as an engineering-focused enterprise, we offer top-tier pipeline contractor services, expert pipe repair services, and complimentary maintenance guidance.
3. Do you support OEM/ODM services?
Yes, we proudly offer OEM/ODM customization services across all facets, including materials, specifications, logos, packaging, and connection methods. Our skilled team provides tailored solution suggestions specifically for your projects, backed by a proven track record of successful implementations.
4. What are your terms of payment?
We accept payment via T/T or L/C at sight, ensuring a smooth and seamless transaction process.
5. How can you guarantee the quality of your products?
We warmly welcome all customers to visit our facility and inspect our products firsthand. Additionally, we conduct rigorous, customer-specific tests before order placement. To further assure quality, we can provide samples for customers to conduct their own tests prior to bulk production.
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