| 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 essential for the efficient and reliable long-distance transportation of oil, gas, and a myriad of other critical commodities. These large-diameter transmission pipelines play a pivotal role in conveying crude oil, natural gas, and refined products from their extraction points to refineries, processing facilities, and primary distribution hubs.
Epoxy & Plastic Coated Anti-Corrosion Steel Pipe: Designed to endure diverse working conditions, these versatile pipes can be customized with a range 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, as well as fully coated inner and outer epoxy.
- Pipe Jacking: Inner epoxy with outer 3PE, inner epoxy with outer 3PP, and inner epoxy enhanced with double-layer epoxy.
- Trenchless Traction: Inner epoxy combined with outer 3PE, inner epoxy combined with outer 3PP, and inner epoxy combined with double-layer epoxy.
- Open-Air Application: Inner epoxy with an outer anti-UV coating for enhanced durability.
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, designed to meet the demanding requirements of various industrial applications.
| Clamp Connection |
Flange Connection |
Experience unparalleled compatibility and convenience with our seamless connection method.
Our innovative double-layer epoxy coating, meticulously crafted with premium epoxy resin, ensures flawless compatibility between the inner and outer layers. Utilizing our exclusive solvent-free epoxy formula, this coating offers superior corrosion resistance and unmatched durability.
Optimal Cathodic Protection
Our advanced double-layer epoxy coating integrates seamlessly with cathodic protection systems, guaranteeing zero interference and optimizing performance.
Impressive Flexibility and Bending Resistance
Engineered with high molecular weight epoxy resin, our coating material delivers exceptional flexibility and outstanding bending resistance, ensuring long-lasting performance.
Durable Scratch Resistance
The outer layer is enhanced with a modified epoxy coating, reinforced with specialized scratch-resistant materials, providing superior protection against scratches.
Exceptional High Temperature Resistance
Our double-layer epoxy anticorrosive steel pipes can endure temperatures up to 110ºC, preserving structural integrity even under extreme heat conditions.
1. Our pipeline series ranges from DN50 to DN3600 calibers, offering lengths from 6 to 16 meters.
2. We boast 2 state-of-the-art powder coating production lines and 12 twin-screw extruders, reflecting our cutting-edge R&D in powder coating and polyethylene material modifications.
3. As trailblazers in various powder anticorrosion processes, we provide a comprehensive range of techniques including suction coating, spraying, rolling coating, and dip coating.
4. Uniquely positioned in the country, we combine large-caliber steel pipe production, anti-corrosion processing, and anti-corrosion material manufacturing within one enterprise.
5. Our socket-type anti-corrosion steel pipes ensure maximum safety and reliability, setting industry standards.
| 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 achieved CE, BV, ISO, and WAR certifications, with performance metrics that not only meet but substantially exceed standard requirements. If you have specific national standards in mind, please inform us. We are more than happy to verify or test our products to ensure they align perfectly with your criteria.
2. What services do you offer?
As a versatile manufacturing factory, we excel in creating high-quality pipe products, pipe fittings, and offer comprehensive packaging and shipping services. Our professional consulting division delivers expert project advice, all-encompassing pipe system solutions, and innovative design recommendations. Furthermore, our engineering-focused team offers premier pipeline contractor services, specialized pipe repair solutions, and complimentary maintenance guidance.
3. Do you support OEM/ODM services?
Absolutely! We proudly provide OEM/ODM customization services, encompassing materials, specifications, logos, packaging, and connection methods, among others. Our experienced team offers tailored solution suggestions for your specific projects, backed by a history of successful implementations.
4. What are your terms of payment?
To ensure a seamless transaction process, we accept payment 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 facility and personally inspect our products. We also perform rigorous tests according to customer specifications before order placement. Additionally, to further affirm our quality commitment, we can provide samples for customers to conduct their own tests prior to bulk production.
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