| 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: Steel pipes are the backbone of long-distance transportation for oil, gas, and their related commodities. These large-diameter transmission pipelines are crucial for efficiently moving crude oil, natural gas, and refined products from production fields to refineries, processing facilities, and distribution hubs, ensuring a seamless flow across vast distances.
Epoxy & Plastic Coated Anti-Corrosion Steel Pipe: Tailored to withstand an array of challenging working conditions, these pipes offer versatile anticorrosive solutions. They are ideal for buried installations, trenchless traction, pipe jacking, and open-air applications. The following advanced anticorrosion solutions are available to meet your specific needs:
- Buried: Boasting inner epoxy with outer PE, inner epoxy with outer 3PE, inner epoxy with outer 3PP, and fully epoxy-coated inner & outer surfaces.
- Pipe Jacking: Featuring inner epoxy with outer 3PE, inner epoxy with outer 3PP, and inner epoxy with a robust double-layer epoxy.
- Trenchless Traction: Equipped with inner epoxy paired with outer 3PE, inner epoxy with outer 3PP, and inner epoxy reinforced with double-layer epoxy.
- Open-Air Application: Designed with inner epoxy coupled with an outer anti-UV coating to withstand environmental elements.
Inner Epoxy Resin Outer Polyethylene Coating Composite Steel Pipe: This meticulously pre-treated steel pipe is engineered with an inner surface coated in fusion-bonded epoxy powder and an outer surface enveloped in polyethylene powder. The result is a high-performance, corrosion-resistant steel-plastic composite pipe, setting new standards in durability and reliability.
| Clamp Connection |
Flange Connection |
Highly compatible and remarkably convenient connection
The inner and outer layers of our double-layer epoxy coating are meticulously crafted with high-quality epoxy resin. This ensures exceptional compatibility between both layers. Our solvent-free epoxy coating, a patented technology, offers unparalleled compatibility and outstanding corrosion resistance.
Superior cathodic protection
Our double-layer epoxy coating seamlessly integrates with cathodic protection systems, ensuring no interference and optimal performance.
Exceptional flexibility and resistance to bending
Crafted from high molecular weight epoxy resin, our coating material boasts superior flexibility and exceptional resistance to bending.
Robust Scratch Resistance
The outer layer features a modified epoxy coating enhanced with specialized scratch-resistant materials, providing excellent scratch resistance.
Remarkable High Temperature Resistance
Our double-layer epoxy anticorrosive steel pipes can endure temperatures up to 110ºC, maintaining integrity under high temperature conditions.
1. Our pipeline range includes calibers from DN50 to DN3600, with each piece available in lengths from 6 to 16 meters.
2. Equipped with 2 advanced powder coating production lines and 12 twin-screw extruders, we boast comprehensive R&D capabilities in powder coating and polyethylene material modification.
3. We are the leading manufacturer of diverse powder anticorrosion processes, offering multiple techniques such as suction coating, spraying, rolling coating, and dip coating.
4. We stand alone in the nation, integrating 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 utmost 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 Qufu, China, the esteemed hometown of Confucius. As an elite engineering pipeline manufacturer, we excel as a pipeline engineering service provider and general contractor. Our core business encompasses four distinct categories of functional and customized pipelines, including specialized pipelines for rainwater and sewage diversion, municipal applications, industrial and mining sectors, and national key engineering projects. We have meticulously cultivated a comprehensive industrial ecosystem integrating design institutes, financial institutions, port logistics, construction units, as well as upstream and downstream enterprises. Our unwavering mission is to become the world's leading provider of integrated pipeline system solutions, transforming human life through intelligent pipeline technology and ensuring the unwavering safety of pipeline transportation.
Donghong proudly features a team of over 200 dedicated R&D personnel and boasts 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 are at the forefront of research in the digitalization, informatization, and intelligentization of pipeline engineering. As pioneers in the engineering pipeline industry, we proudly serve national key strategic projects and essential livelihood initiatives, including 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 significant contributions to national key strategic projects and major livelihood initiatives underscore our steadfast commitment to innovation and excellence.
1. Does your product meet international standards?
Our products proudly surpass international benchmarks, having secured CE, BV, ISO, and WAR certifications. All metrics exceed standard requirements, ensuring top-tier quality. Should you have specific national standards in mind, please share them with us, and we will conduct the necessary verifications and tests to meet your expectations.
2. What services do you offer?
As a comprehensive manufacturing factory, we specialize in providing superior pipe products, pipe fittings, meticulous packaging, and efficient shipping. Leveraging our expertise as a consulting company, we offer project consulting, innovative pipe system solutions, and expert design suggestions. Furthermore, as an engineering-centric enterprise, we deliver pipeline contractor services, reliable pipe repair services, and complimentary maintenance guidance.
3. Do you support OEM/ODM services?
Absolutely, we offer extensive customization options in material, specifications, logos, packaging, and connection methods to meet your unique needs. Our professional team is ready to provide tailored solution suggestions for your projects, backed by a proven track record of successful implementations.
4. What are your terms of payment?
We accept secure payments via T/T or L/C at sight.
5. How can you guarantee the quality of your products?
We extend a warm invitation to all customers to visit our facilities and inspect our products personally. We adhere to rigorous testing protocols per customer specifications before any order is placed. Additionally, we offer pre-production samples for customers to conduct their own quality assessments, ensuring complete satisfaction and assurance in our product quality.
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