| 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 efficient and reliable long-distance transportation of oil, gas, and a variety of other essential commodities. Large-diameter transmission pipelines play a crucial role in transferring crude oil, natural gas, and refined products from their production origins to refineries, processing facilities, and key distribution hubs.
Epoxy & Plastic Coated Anti-Corrosion Steel Pipe: Expertly engineered to endure diverse working conditions, these versatile pipes can be customized with an array of robust anticorrosive solutions. Perfect for buried installations, trenchless traction, pipe jacking, and open-air applications, the 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, ensuring maximum protection against corrosion.
- Pipe Jacking: Inner epoxy with outer 3PE, inner epoxy with outer 3PP, and inner epoxy complemented by double-layer epoxy, offering superior durability and performance.
- Trenchless Traction: Inner epoxy paired with outer 3PE, inner epoxy paired with outer 3PP, and inner epoxy paired with double-layer epoxy, providing exceptional resistance to harsh underground environments.
- Open-Air Application: Inner epoxy with an outer anti-UV coating, designed to withstand direct exposure to sunlight and other environmental factors.
Inner Epoxy Resin Outer Polyethylene Coating Composite Steel Pipe: This meticulously pre-treated steel pipe features an inner surface shielded with fusion-bonded epoxy powder and an outer surface fortified with polyethylene powder. The result is a high-performance, corrosion-resistant steel-plastic composite product that excels in various demanding applications.
| Clamp Connection |
Flange Connection |
Enjoy unmatched compatibility and convenience with our seamless connection method.
Our double-layer epoxy coating, crafted with premium epoxy resin, guarantees exceptional inner and outer layer compatibility. Our patented, solvent-free epoxy coating delivers unparalleled compatibility and superior corrosion resistance.
Optimal Cathodic Protection
Our double-layer epoxy coating integrates flawlessly with cathodic protection systems, ensuring no interference and peak performance.
Impressive Flexibility and Bending Resistance
Formulated with high molecular weight epoxy resin, our coating material offers outstanding flexibility and remarkable bending resistance.
Durable Scratch Resistance
Our outer layer features a modified epoxy coating fortified with specialized scratch-resistant materials, ensuring excellent scratch protection.
Exceptional High Temperature Resistance
Our double-layer epoxy anticorrosive steel pipes withstand temperatures up to 110ºC, maintaining structural integrity under high heat conditions.
1. Our pipeline series ranges from DN50 to DN3600 calibers, with lengths spanning from 6 to 16 meters.
2. We operate 2 state-of-the-art powder coating production lines and 12 twin-screw extruders, showcasing advanced R&D in powder coating and polyethylene material modification.
3. As pioneers in various powder anticorrosion processes, we offer an array of techniques including suction coating, spraying, rolling coating, and dip coating.
4. Unique in the country, we 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 ensures 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 illustrious city of Qufu, China, the revered birthplace of Confucius. As a premier engineering pipeline manufacturer, a dynamic pipeline engineering service provider, and an adept general contractor, our expertise spans four essential pipeline categories: specialized pipelines for rainwater and sewage diversion, municipal projects, industrial and mining sectors, and national key engineering initiatives. We have nurtured a robust industrial ecosystem encompassing design institutes, financial institutions, port logistics, construction units, and a wide array of upstream and downstream enterprises. Our steadfast commitment is to rise as a global paragon in providing comprehensive pipeline system solutions, fostering intelligent pipelines that elevate human living standards and ensuring perpetual pipeline transportation security.
Donghong boasts a formidable team of over 200 R&D experts and an impressive portfolio of more than 100 patents. Leveraging esteemed national technology platforms such as the National Enterprise Technology Center, National CNAS Laboratory, Academician Expert Workstation, and Post-doctoral Workstation, we profoundly explore the domains of digitalization, informatization, and intelligentization of pipeline engineering. Leading the charge in the engineering pipeline industry, we significantly contribute 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 engagement in national key strategic projects and vital livelihood initiatives underscores our relentless pursuit of innovation and excellence.
1. Does your product meet international standards?
Our products have successfully achieved CE, BV, ISO, and WAR certifications, with all performance metrics surpassing standard requirements. If you have specific national standards in mind, please let us know. We will gladly verify or test our products accordingly to ensure they meet your criteria and exceed expectations.
2. What services do you offer?
As a leading manufacturing factory, we specialize in delivering premium pipe products, pipe fittings, comprehensive packaging, and efficient shipping services. As an expert consulting firm, we provide professional project consulting, all-encompassing pipe system solutions, and cutting-edge design recommendations. Furthermore, as an engineering-centric enterprise, we offer exemplary pipeline contractor services, specialized pipe repair solutions, and free maintenance guidance to ensure your complete satisfaction.
3. Do you support OEM/ODM services?
Absolutely! We are proud to offer OEM/ODM customization services across materials, specifications, logos, packaging, connection methods, and more. Our experienced team provides bespoke solution recommendations tailored to your specific projects, with a proven history of successful implementations.
4. What are your terms of payment?
We accept payment via T/T or L/C at sight to ensure a seamless and straightforward transaction process.
5. How can you guarantee the quality of your products?
We warmly invite all customers to visit our facility and personally inspect our products. Additionally, we perform rigorous testing based on customer specifications before order placement. To further ensure quality, we can provide samples for customers to conduct their own tests prior to bulk production, ensuring complete confidence in our products.
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