Introducing the state-of-the-art Internal Epoxy External PE Coated Steel Pipe, a pinnacle of innovation and durability from Shandong Donghong Pipe Industry Co., Ltd. This steel-plastic composite marvel is engineered with impeccable precision, employing pre-treated steel as the foundational base pipe. On the inside, it boasts a meticulously applied layer of fusion-bonded epoxy powder, offering supreme anti-corrosion protection. The exterior is elegantly shielded with a robust coating of polyethylene powder, ensuring enhanced durability and performance. This dual-layered protection makes it the ideal choice for environments demanding high cathodic resistance and longevity.
| 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≤4000 |
>0.45 |
>1.5 |
>1.8 |
Note: Fully customizable to perfectly align with your specific requirements and preferences.
1. Corrosion resistance
Employing anti-corrosion marvels like polyethylene and epoxy resin, this product ushers in outstanding resistance to corrosion. These polymer materials act as a formidable barrier against the ravages of soil and fluid, significantly extending the pipeline's service life.
2. Excellent hydraulic properties
Experience unparalleled efficiency with our smooth inner wall, which minimizes scaling and boasts a low friction coefficient. Its non-adhesive surface optimizes pipeline flow capability, substantially reducing pressure loss and energy consumption during water transmission.
3. Good hygiene performance
The inner surface is coated with a smooth epoxy resin that resists scaling, ensuring safety and hygiene. This anti-corrosion material complies with GB/T17219 health standards, effectively preventing any contamination of water by the pipeline.
4. Superior adhesion of coating
Our modified epoxy resin and polyethylene powder interlace with metal to form an exceptionally strong chemical bond. The outer polyethylene layer offers remarkable toughness and impact resistance, shielding against scratches, drag impacts, and even plant root punctures.
5. Long life
Engineered to endure, our anti-corrosion steel pipes are designed for a lifespan of 30 to 50 years under normal construction and usage conditions, far surpassing the longevity of conventional steel pipes.
6. Good connection security
Versatile in its adaptability, our pipes support multiple connection methods to suit varied environments and pressure needs. Options include flanged, quick coupling, butt welding, stainless steel lining, and socket connections, ensuring robust and reliable connectivity.
1. At Shandong Donghong Pipe Industry Co., Ltd., the paramount quality of our Internal Epoxy External PE Coated Steel Pipe with High Cathodic Resistance is the result of a meticulously engineered process design and advanced manufacturing techniques. Leveraging our state-of-the-art machinery and rich experience in the industry, we ensure unparalleled product quality. Our relentless pursuit of excellence makes us a trusted name, committed to delivering high-quality products that exceed customer expectations.
In response to the surging demand for robust, large-diameter pipelines, Donghong has innovatively expanded its offering to include large-diameter anticorrosion steel pipes. These pipes are crafted to meet and often exceed international standards, ensuring that our clientele receives nothing short of first-class products.
2. To cater to the diverse requirements of various projects, Donghong has ingeniously developed an array of connection methods for our large diameter anticorrosive steel pipes. Options such as flexible socket connection, butt welding, socket lap weld, ball lap weld, and customized bevel forms provide comprehensive flexibility for any project. Pioneering the industry, we were the first to create a large-diameter socket flexible connection, achieving a maximum socket caliber of 1.8M. This innovation has been successfully implemented in key water conservancy projects across China, positioning us as trailblazers and leaders in the large-diameter steel pipe socket connection domain.
At our cutting-edge facility, Donghong manufactures large-diameter, high-pressure pipe fittings tailored for a myriad of projects. In addition to our standard offerings, we pride ourselves on our ability to customize special pipe fittings that align with specific customer requirements and the unique demands of different project environments.
Additional connection methods, meticulously designed to meet the broad spectrum of industry needs.
| Socket type connection |
Flange Connection |
Clamp Connection |
About us
Donghong (Shandong Donghong Pipe Industry Co., Ltd.), with the distinguished stock code of 603856, stands as a beacon of innovation in the engineering pipeline domain. Proudly rooted in the culturally rich city of Qufu, China-home to the legendary Confucius-Donghong has been at the forefront of pipeline manufacturing since its inception in 1997. As a comprehensive provider of engineering pipeline solutions, Donghong excels in delivering exceptional services as a general contractor, backed by its versatile range of functional and customized pipelines. These include rainwater and sewage drainage systems, municipal and industrial pipelines, and critical infrastructure pipelines for national projects. Marking a significant milestone, Donghong was listed on the Shanghai main board on November 6, 2017, achieving the distinction of being China's inaugural main board-listed composite pipeline manufacturer.
Empowered by a dynamic team of over 200 R&D experts and a portfolio of more than 100 patents, Donghong is a powerhouse of innovation. The company's pioneering efforts are supported by a robust national enterprise technology center, a certified CNAS laboratory, as well as academician and postdoctoral workstations. These esteemed platforms fuel Donghong's cutting-edge research in digital, information, and intelligent pipeline engineering, positioning the company as a vanguard in the industry.
Donghong is synonymous with excellence in national key strategic and public welfare projects. As a trailblazer in the engineering pipeline sector, Donghong contributes to transformative projects like the South-to-North Water Diversion, Hanjinwei, Beijing-Xinjiang Expressway, and the visionary One Belt, One Road initiative. The company's expertise further extends to critical endeavors such as standardized farmland development, urban-rural water supply integration, Liren gas projects, and centralized heating solutions, showcasing its unwavering commitment to enhancing national infrastructure and quality of life.
At Shandong Donghong Pipe Industry Co., Ltd., we take immense pride in our robust logistics network, crafted through strategic alliances with over five elite 5A-level logistics companies. Our extensive experience in transportation ensures seamless service that transcends weather challenges and geographical barriers. Whether it's the scorching heat or icy cold, our integrated logistics solutions, encompassing automobile, railway, port, and shipping logistics, are designed to deliver excellence. No destination is too remote, no condition too harsh. We promise a comprehensive and efficient transportation strategy that guarantees timely delivery of every shipment right at your doorstep, ensuring your operations never miss a beat.
1. Is your product meets the international standard ?
Our products have pass CE, BV, ISO and wars certificate, and all figures indicates higher than standard, you can feel free to let us know which national standard you required, we will check or test it for you.
2. What kind of service do you offer ?
As a manufacture fatory, we provide pipe products, pipe fittings, package and shipping; as a professional consulation company we provide project consulting advise, pipe system solutions and design suggestions; as an engineering focused enterprise , we also provide pipeline contractor service and pipe repair service, also can give free maintance guidance.
3. Do you support OEM/ODM service?
Yes, we offer customization in material, specification, logo, package , connection methods andothers. Meanwhile, our professional team can offer solution suggestion for your specified projects, we have successfull cases of that service.
4. What's your terms of payment?
T/T or L/C at sight.
5. How can you gurantee the goods you offered is qualified?
We warmly welcome all customers arrange the visit to our company and see our goods in sight, we can also provide strict test as per customer required before order. Meanwhile, before the bulk production, we can dispatch samples for customer to do their own tests to qualify the products.
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