| 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: Seamlessly delivering essential resources, our pipes are indispensable for transporting oil, gas, and related products over vast distances. Large-diameter pipelines, known as transmission pipelines, efficiently carry crude oil, natural gas, and refined products from production fields to refineries, processing plants, and distribution centers.
Epoxy & Plastic Coated Anti-Corrosion Steel Pipes: Tailored to meet diverse operational needs, these pipes offer a range of anticorrosive solutions suitable for various environmental conditions. Whether buried, trenchless traction, pipe jacking, or open-air applications, the following anti-corrosion solutions ensure optimal performance:
- Buried: Inner epoxy with outer PE, inner epoxy with outer 3PE, inner epoxy with outer 3PP, or both inner and outer epoxy coated solutions.
- Pipe Jacking: Inner epoxy with outer 3PE, inner epoxy with outer 3PP, or inner epoxy with double layer epoxy coatings.
- Trenchless Traction: Inner epoxy with outer 3PE, inner epoxy with outer 3PP, or inner epoxy with double layer epoxy coatings.
- Open-Air Application: Inner epoxy with outer anti-UV coated solutions.
Innovative Inner Epoxy Resin and Outer Polyethylene Coated Composite Steel Pipe: Utilizing a pre-treated steel pipe as the foundation, this composite steel pipe is heated, with its inner surface coated with fusion-bonded epoxy powder and its outer surface with polyethylene powder. The result is a corrosion-resistant, steel-plastic composite product of exceptional performance.
| Clamp Connection |
Flange Connection |
Outstanding compatibility and effortless connection.
Our patented double-layer epoxy coating features an epoxy resin base with superior compatibility between the inner and outer layers. This solvent-free epoxy coating offers unmatched corrosion resistance, ensuring long-lasting protection.
Superior Cathodic Protection
Our double-layer epoxy coating seamlessly integrates with cathodic protection systems, ensuring no interference or shielding of the cathodic protection.
Exceptional Flexibility and Bend Resistance
Crafted using high molecular weight epoxy resin, our coating material exhibits remarkable flexibility and outstanding resistance to bending.
Enhanced Scratch Resistance
The exterior layer, made from modified epoxy coating infused with specialized scratch-resistant materials, offers exceptional resistance to surface scratches.
High-Temperature Endurance
Our double-layer epoxy anticorrosive steel pipes can endure extreme temperatures, handling up to 110ºC with ease.
1. Available in calibers ranging from DN50 to DN3600, with pipe lengths spanning 6 to 16 meters per piece.
2. Equipped with two advanced powder coating production lines and twelve twin-screw extruders, we boast state-of-the-art R&D and production capabilities for powder coating and polyethylene material modification.
3. As the most diverse manufacturer of powder anticorrosion processes, we offer a variety of methods including suction coating, spraying, rolling coating, and dip coating.
4. The only enterprise in the nation capable of producing large-caliber steel pipes, anti-corrosion processing, and anti-corrosion materials all under one roof.
5. Ensuring the safety and reliability of socket-type anti-corrosion steel.
| 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), headquartered in the historical city of Qufu, China-the revered hometown of Confucius-is an eminent engineering pipeline manufacturer and service provider. Specializing in four key categories of functional and customized pipelines, Donghong Co., Ltd. offers tailored solutions for rainwater and sewage diversion, municipal areas, industrial and mining sectors, and national key engineering projects. The company has meticulously crafted an extensive industrial ecosystem, incorporating design institutes, financial institutions, port logistics, construction units, and both upstream and downstream enterprises. Committed to revolutionizing the pipeline industry, Donghong Co., Ltd. aims to become a global leader in comprehensive pipeline system solutions, enhancing human life with intelligent pipelines and ensuring the perpetual safety of pipeline transportation.
Donghong boasts a robust team of over 200 R&D personnel and holds more than 100 patents. Leveraging national technological platforms such as the National Enterprise Technology Center, National CNAS Laboratory, Academician Expert Workstation, and Post-doctoral Workstation, the company is at the forefront of research in the digitalization, informatization, and intelligentization of pipeline engineering. This innovative approach ensures that Donghong leads the development of the engineering pipeline industry, contributing to critical national strategic projects and impactful livelihood initiatives like 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. Donghong Co., Ltd. is dedicated to serving and advancing crucial national and community projects.
1. Does your product meet international standards?
Our products have successfully passed CE, BV, ISO, and WAR certificates, consistently exceeding standard requirements. Feel free to let us know the specific national standard you need, and we will verify or test it accordingly.
2. What kind of services do you offer?
As a manufacturing facility, we provide high-quality pipes, pipe fittings, packaging, and shipping services. As a professional consulting company, we offer project advice, pipe system solutions, and design suggestions. Additionally, as an engineering-focused enterprise, we provide pipeline contracting, repair services, and free maintenance guidance.
3. Do you support OEM/ODM services?
Yes, we offer customization in materials, specifications, logos, packaging, connection methods, and more. Our professional team can also provide tailored solutions for specific projects, with numerous successful cases to our credit.
4. What are your terms of payment?
We accept T/T or L/C at sight.
5. How do you guarantee the quality of your products?
We warmly welcome all customers to visit our company and inspect the products firsthand. We can also conduct stringent tests as per customer requirements before the order. Additionally, before mass production, we can send samples for customers to perform their own tests to ensure product quality.
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