| 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: Pipes are indispensable for the paramount and efficient long-distance transportation of oil, gas, and a myriad of other essential commodities. These large-diameter transmission pipelines are the lifelines that transfer crude oil, natural gas, and refined products seamlessly from their production origins to refineries, advanced processing facilities, and key distribution hubs.
Epoxy & Plastic Coated Anti-Corrosion Steel Pipe: Engineered to endure diverse and challenging working conditions, these versatile pipes can be customized with a comprehensive array of robust anticorrosive solutions. They are ideal for buried installations, trenchless traction, pipe jacking, and open-air applications. Our available anticorrosion solutions include:
- Buried: Inner epoxy with outer PE, inner epoxy with outer 3PE, inner epoxy with outer 3PP, and fully coated with inner & outer epoxy for unparalleled protection.
- Pipe Jacking: Inner epoxy with outer 3PE, inner epoxy with outer 3PP, and inner epoxy augmented by a double-layer epoxy for extreme durability.
- Trenchless Traction: Inner epoxy paired with outer 3PE, inner epoxy paired with outer 3PP, and inner epoxy paired with double-layer epoxy for superior performance.
- Open-Air Application: Inner epoxy with an outer anti-UV coating to withstand the harshest of environmental conditions.
Inner Epoxy Resin Outer Polyethylene Coating Composite Steel Pipe: This meticulously pre-treated steel pipe is fortified with an inner surface shielded by fusion-bonded epoxy powder and an outer surface reinforced with polyethylene powder. The result is a high-performance, corrosion-resistant steel-plastic composite product designed for longevity and reliability.
| Clamp Connection |
Flange Connection |
Experience the ultimate in seamless connection methods, offering unmatched compatibility and convenience.
Our double-layer epoxy coating, meticulously crafted with premium epoxy resin, ensures exceptional compatibility for both inner and outer layers. Our exclusive, solvent-free epoxy coating provides unparalleled compatibility alongside superior corrosion resistance.
Optimal Cathodic Protection
Our double-layer epoxy coating integrates seamlessly with cathodic protection systems, guaranteeing interference-free performance and peak efficiency.
Impressive Flexibility and Bending Resistance
Utilizing high molecular weight epoxy resin, our coating material offers exceptional flexibility and outstanding bending resistance.
Durable Scratch Resistance
The outer layer of our coating features a modified epoxy formulation, enhanced with specialized scratch-resistant materials to provide excellent scratch protection.
Exceptional High-Temperature Resistance
Our double-layer epoxy anticorrosive steel pipes are engineered to withstand temperatures up to 110ºC, ensuring structural integrity even under extreme heat conditions.
1. Our pipeline series spans calibers from DN50 to DN3600, with lengths ranging from 6 to 16 meters.
2. We boast two state-of-the-art powder coating production lines and twelve twin-screw extruders, leading the way in advanced R&D for powder coating and polyethylene material modification.
3. As trailblazers 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 nation, we combine large-caliber steel pipe production, anti-corrosion processing, and anti-corrosion material manufacturing within one enterprise.
5. Our socket-type anti-corrosion steel guarantees maximum safety and reliability.
| 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. (referred to as: Donghong Co., Ltd., stock code: 603856) is headquartered in the historic city of Qufu, China, the birthplace of Confucius. As a distinguished engineering pipeline manufacturer, dynamic service provider, and proficient general contractor, Donghong Co., Ltd. excels in four pivotal categories of pipelines: specialized pipelines for rainwater and sewage diversion, municipal projects, the industrial and mining sectors, and major national engineering initiatives. We have cultivated a robust industrial ecosystem that encompasses design institutes, financial institutions, port logistics, construction units, and a wide array of upstream and downstream enterprises. Our unwavering commitment is to ascend as a global leader in delivering comprehensive pipeline system solutions, pioneering intelligent pipelines that revolutionize human living and secure pipeline transportation perpetually.
Donghong takes pride in its formidable team of over 200 R&D experts and an impressive portfolio of more than 100 patents. Utilizing distinguished 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 advancement of the engineering pipeline industry, we contribute significantly to crucial strategic projects and community well-being initiatives, such as the South-to-North Water Diversion, Huangzhilin, Hanzhiwei, Beijing-New Zealand Expressway, One Belt, One Road, standardized farmland, urban and rural water supply integration, Liren gas, and centralized heat supply. Our extensive participation in national key strategic projects and essential livelihood projects underscores our relentless pursuit of innovation and excellence.
1. Does your product meet international standards?
Our products have proudly passed CE, BV, ISO, and WAR certifications, with all performance metrics surpassing standard requirements. If you have specific national standards in mind, please inform us. We are more than happy to verify or test our products to ensure they meet your criteria, providing you peace of mind and assurance of quality.
2. What services do you offer?
As a premier manufacturing factory, we specialize in delivering high-quality pipe products, pipe fittings, packaging, and shipping services. In our role as a professional consulting company, we offer expert project consulting, comprehensive pipe system solutions, and innovative design suggestions. Additionally, as an engineering-focused enterprise, we provide top-notch pipeline contractor services, expert pipe repair services, and complimentary maintenance guidance, ensuring a seamless and efficient service experience.
3. Do you support OEM/ODM services?
Yes, we proudly offer OEM/ODM customization services in materials, specifications, logos, packaging, connection methods, and more. Our skilled team provides tailored solution suggestions for your specific projects, backed by a stellar track record of successful implementations, ensuring your unique needs are met with excellence.
4. What are your terms of payment?
We accept payment via T/T or L/C at sight, ensuring a smooth and straightforward transaction process for our valued customers.
5. How can you guarantee the quality of your products?
We warmly welcome all customers to visit our facility and inspect our products in person. Additionally, we conduct rigorous tests according to customer specifications before order placement. To further ensure quality, we can provide samples for customers to conduct their own tests prior to bulk production, offering an additional layer of assurance and confidence in our products.
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