| 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 long-distance transportation of oil, gas, and a variety of other essential commodities. Large-diameter transmission pipelines are critical 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: Engineered to withstand diverse working conditions, these adaptable pipes can be customized with an array of robust anticorrosive solutions. Ideal for buried installations, trenchless traction, pipe jacking, and open-air applications, 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.
- Pipe Jacking: Inner epoxy with outer 3PE, inner epoxy with outer 3PP, and inner epoxy complemented by double-layer epoxy.
- Trenchless Traction: Inner epoxy paired with outer 3PE, inner epoxy paired with outer 3PP, and inner epoxy paired with double-layer epoxy.
- Open-Air Application: Inner epoxy with an outer anti-UV coating.
Inner Epoxy Resin Outer Polyethylene Coating Composite Steel Pipe: This meticulously pre-treated steel pipe boasts an inner surface shielded with fusion-bonded epoxy powder and an outer surface fortified with polyethylene powder. The outcome is a high-performance, corrosion-resistant steel-plastic composite product.
| 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 storied city of Qufu, China, the birthplace of Confucius. As an elite engineering pipeline manufacturer, a dynamic pipeline engineering service provider, and a proficient general contractor, our expertise encompasses four key categories of pipelines: specialized pipelines for rainwater and sewage diversion, municipal projects, industrial and mining sectors, and national key engineering initiatives. We have cultivated a resilient industrial ecosystem incorporating design institutes, financial institutions, port logistics, construction units, and a spectrum of upstream and downstream enterprises. Our unwavering commitment is to ascend as a global frontrunner in delivering comprehensive pipeline system solutions, fostering intelligent pipelines that revolutionize human living and perpetually secure pipeline transportation.
Donghong takes pride in its formidable team of over 200 R&D experts and an impressive portfolio of more than 100 patents. Utilizing prestigious national technology platforms such as the National Enterprise Technology Center, National CNAS Laboratory, Academician Expert Workstation, and Post-doctoral Workstation, we delve intensively into the realms of digitalization, informatization, and intelligentization of pipeline engineering. Spearheading the advancement of the engineering pipeline industry, we 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 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 exceeding standard requirements. Should you have any specific national standards in mind, please inform us, and we will gladly verify or test our products accordingly to ensure they meet your criteria.
2. What services do you offer?
As a manufacturing factory, we specialize in providing high-quality pipe products, pipe fittings, packaging, and shipping services. 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 deliver top-notch 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 in materials, specifications, logos, packaging, connection methods, and more. Our skilled team provides tailored solution suggestions for your specific 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 to ensure a smooth 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 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.
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