| 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: Pipelines are the lifeblood of efficient long-distance transportation, essential for moving oil, gas, and a spectrum of indispensable commodities. Large-diameter transmission pipelines are pivotal in carrying crude oil, natural gas, and refined products from their production sites to refineries, processing facilities, and crucial distribution centers.
Epoxy & Plastic Coated Anti-Corrosion Steel Pipe: Crafted to endure diverse working environments, these adaptable pipes can be tailored with a variety of robust anticorrosive treatments. 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.
- 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 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 engineered for durability and reliability.
| Clamp Connection |
Flange Connection |
Enjoy unmatched compatibility and convenience with our seamless connection method.
Our double-layer epoxy coating, crafted with premium epoxy resin, ensures exceptional inner and outer layer compatibility. This patented, solvent-free epoxy coating offers unparalleled compatibility and superior corrosion resistance, making it an industry leader.
Optimal Cathodic Protection
Our double-layer epoxy coating integrates flawlessly with cathodic protection systems, ensuring seamless compatibility and peak performance without interference.
Impressive Flexibility and Bending Resistance
Formulated with high molecular weight epoxy resin, our coating material provides outstanding flexibility and remarkable bending resistance, perfect for demanding applications.
Durable Scratch Resistance
Our outer layer features a modified epoxy coating fortified with specialized scratch-resistant materials, offering excellent scratch protection and long-lasting performance.
Exceptional High Temperature Resistance
Our double-layer epoxy anticorrosive steel pipes can withstand temperatures up to 110ºC, maintaining structural integrity even under high heat conditions, ensuring reliability.
1. Our pipeline series ranges from DN50 to DN3600 calibers, with lengths spanning from 6 to 16 meters, catering to diverse needs.
2. We operate 2 state-of-the-art powder coating production lines and 12 twin-screw extruders, demonstrating our advanced R&D capabilities 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, ensuring top-notch protection.
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, setting us apart.
5. Our socket-type anti-corrosion steel ensures maximum safety and reliability, making it the ideal choice for critical applications.
| 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 attained CE, BV, ISO, and WAR certifications, with all performance metrics surpassing standard benchmarks. If you have particular national standards in mind, please let us know, and we will gladly verify or test our products to ensure they meet your exact criteria.
2. What services do you offer?
As a dedicated manufacturing factory, we excel in delivering premium 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 inventive design suggestions. Moreover, as an engineering-focused enterprise, we provide exceptional pipeline contractor services, expert pipe repair services, and complimentary maintenance guidance.
3. Do you support OEM/ODM services?
Absolutely! We proudly offer OEM/ODM customization services including materials, specifications, logos, packaging, connection methods, and more. Our experienced team crafts tailored solutions for your unique projects, supported by a proven record of successful implementations.
4. What are your terms of payment?
We accept payment through T/T or L/C at sight to ensure a seamless transaction process.
5. How can you guarantee the quality of your products?
We warmly welcome all customers to visit our facility for an in-person inspection of our products. Additionally, we conduct rigorous tests based on customer specifications before order confirmation. To further assure quality, we can provide samples for customers to perform their own tests prior to bulk production.
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