| Model NO. | DHPI-wear-resisting |
| Installation and Connection | Electric fusion Connection |
| Technology of Plastic Composite Pipe | Internal and External Coating |
| base Pipe of Plastic Composite Pipe | Welded Steel Pipe |
| Internal Coating Materials of Plastic Composite Pipe | Polyethylene Coating Steel Pipe |
| Plastic Composite Pipe Coating Form | Inner and Outside Coating |
| Steel Skeleton PE Pipe Use | Municipal, Chemical, Oil Pipeline, Mining |
| Product | Composite Steel Pipe |
| Raw Material | High Quality Copper Steel, Modified Raw Material |
| Pressure | Maximum 15MPa |
| Length | 6-12 M |
| Transport Package | by Truck, by Sea |
| Trademark | DHPI |
| Origin | China |
| HS Code | 7303009000 |
| Production Capacity | 500000 Kilometers /Year |


A steel wire reinforced PE composite pipe, also known as SRTP pipe, is a type of pipeline made by winding high-strength steel wires around a polyethylene (PE) core. This combination provides the pipe with excellent strength, flexibility, and corrosion resistance, making it suitable for various applications such as water supply, drainage, mining, and industrial construction. The steel wire reinforcement enhances the pipe's structural integrity, while the PE core ensures durability and resistance to chemical corrosion. SRTP pipes are widely used in infrastructure projects due to their reliability and long service life.





1.Electrofusion Welding: This method involves using specialized equipment to heat the pipe ends and fittings, melting the material and allowing them to fuse together.
2.Butt Fusion Welding: Similar to electrofusion welding, butt fusion welding involves heating the pipe ends and then pressing them together to create a seamless joint.
3.Flange Connections: Flange connections utilize flanges attached to the pipe ends, which are then bolted together with gaskets to create a secure seal.
4.Mechanical Couplings: Mechanical couplings are used to join pipe sections together using compression fittings or clamps, providing a quick and easy connection method.
5.Threaded Connections: Some steel wire reinforced PE composite pipes feature threaded ends, allowing them to be screwed together with compatible fittings or adapters.





1.Corrosion Resistance: The PE (polyethylene) inner layer provides excellent resistance to corrosion, making the pipe suitable for conveying various fluids, including water, chemicals, and hydrocarbons.
2.High Strength: The steel wire reinforcement enhances the pipe's structural integrity, allowing it to withstand high-pressure applications and external loads such as soil and traffic loads.
3.Lightweight: Compared to traditional metal pipes, steel wire reinforced PE composite pipes are lightweight, making them easier to transport, handle, and install, reducing labor and equipment costs.
4.Flexibility: The flexibility of PE materials allows for the pipe to be bent and routed around obstacles without the need for additional fittings, reducing the risk of leaks and minimizing installation time.
5.Longevity: Steel wire reinforced PE composite pipes have a long service life, as they are resistant to environmental factors such as UV radiation, abrasion, and chemical exposure, reducing maintenance requirements and lifecycle costs.
6.Cost-Effectiveness: The combination of durability, lightweight design, and ease of installation results in overall cost savings over the lifetime of the pipeline, making it a cost-effective solution for various applications.
These advantages make steel wire reinforced PE composite pipes a preferred choice for a wide range of industries, including mining, water supply, municipal infrastructure, and industrial applications.


Shandong Donghong Pipe Industry Co., Ltd. (referred to as: Donghong Co., Ltd., stock code: 603856) is headquartered in Qufu, China, the hometown of Confucius.Is an engineering pipeline manufacturer, pipeline engineering service provider and pipeline engineering general contractor with the main business of four categories of functional and customized pipelines: special pipelines for rainwater and sewage diversion, special pipelines for municipal areas, special pipelines for industrial and mining areas, and special pipelines for national key engineering projects. The company has built up an industrial ecosystem with the participation of design institutes, financial institutions, port logistics, construction units, upstream and downstream enterprises, etc. The company is committed to becoming a global leading pipeline system comprehensive solution provider by making intelligent pipelines change human life and constant safety of pipeline transportation.



Donghong has more than 200 R&D personnel and more than 100 patents. Relying on national enterprise technology center, national CNAS laboratory, academician expert workstation, post-doctoral workstation and other national technology R&D platforms, Donghong deepens the research on digitalization, informatization and intelligentization of pipeline engineering and leads the development of engineering pipeline industry. Relying on national technology research and development platforms such as National Enterprise Technology Center, National CNAS Laboratory, Academician Expert Workstation, Post-doctoral Workstation, etc., Donghong deepens the research on the digitization, informatization and intelligence of pipeline engineering, leads the development of engineering pipeline industry, and serves the national key strategic projects and people's livelihood projects, such as South-to-North Water Diversion, Huangzhilin, Hanzhiwei, Beijing-New Zealand Expressway, One Belt, One Road, "Two Clear and One Tip", standardized farmland, urban and rural water supply integration, Liren gas, centralized heat supply, etc. The company has been engaged in national key strategic projects and people's livelihood projects.














