| 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 |
Thermally Insulated Pipe |
Big-Care Composite Steel Pipe |
The Double Layer Axial Hollow Pipe, also referred to as double layer axial direction hollow wall pipe, is an innovative piping solution featuring two layers of material with a hollow space in between. This design provides enhanced strength and durability while maintaining a lightweight and flexible construction. The hollow space within the pipe allows for efficient transport of fluids or gases, making it suitable for various applications such as drainage, sewage systems, and cable protection. The double-layer design also offers improved resistance to pressure, impact, and environmental factors, ensuring long-term performance and reliability.
The advantsges:
In the case of the same ring stiffness, the hollow wall pipe with an optimized structure can save much more raw materials than the slid wall pipe.The product is light in weight, convenient in connection and low in project cost.It is the most rationally structured pipe in the current drainage network.
Connection methods for double-wall axial hollow pipes typically use compatible fittings or couplings designed for this type of piping system to connect the pipe sections. These fittings typically provide a secure and waterproof seal between the pipe sections, ensuring efficient fluid or gas transfer. Common connection methods include solvent cement welding, mechanical joints, or compression fittings, depending on the specific requirements of the application and pipe material. In addition, some manufacturers may offer proprietary connection systems for their double-wall axial hollow pipe products.
PVC-U is the most common PVC type for pipes and fittings, including transportation of drinking water, soil and waste, sewage, underground drainage and industrial applications.
Pipes and fittings made of PVC-U have many benefits. They are a safe choice for the transportation of drinking water because they are light, easy to handle and affordable. Technical properties include high mechanical performance, high durability (at least 100 years for underground pipes), high chemical resistance and resistance to UV exposure. Moreover, PVC-U pipes have favorable environmental profiles and are 100% recyclable.
1. Double-Layer Structure: The pipe consists of two layers—an inner layer and an outer layer—with a hollow space between them, enhancing its structural integrity and durability.
2. Axial Hollow Wall: The axial hollow wall design reduces the overall weight of the pipe while maintaining its strength, making it easier to handle and install.
3. High Strength: Despite its lightweight design, the pipe offers high strength and resistance to external loads, ensuring long-term reliability in underground applications.
4. Corrosion Resistance: Made from high-quality PVC materials, the pipe is resistant to corrosion, rust, and chemical degradation, prolonging its service life even in harsh underground environments.
5. Easy Installation: The lightweight construction and smooth interior surface of the pipe facilitate easy handling, transportation, and installation, reducing labor and installation costs.
6. Versatile Applications: The pipe is suitable for various applications, including stormwater drainage, sewer systems, culverts, and underground utilities, providing versatile solutions for infrastructure projects.
| Nomina diameter (dn/mm) |
Nominal Pressure PN/Mpa |
| 0.25 |
0.32 |
0.4 |
0.5 |
0.63 |
| Nominal wall thickness (en/mm) |
| 75 |
/ |
/ |
1.9 |
2.3 |
2.9 |
| 90 |
/ |
1.8 |
2.2 |
2.8 |
3.5 |
| 110 |
1.8 |
2.2 |
2.7 |
3.4 |
4.2 |
| 125 |
2.0 |
2.5 |
3.1 |
3.9 |
4.8 |
| 140 |
2.2 |
2.8 |
3.5 |
4.3 |
5.4 |
| 160 |
2.5 |
3.2 |
4.0 |
4.9 |
6.2 |
| 180 |
2.8 |
3.6 |
4.4 |
5.5 |
6.9 |
| 200 |
3.2 |
3.9 |
4.9 |
6.2 |
7.7 |
| 225 |
3.5 |
4.4 |
5.5 |
6.9 |
8.6 |
| 250 |
3.9 |
4.9 |
6.2 |
7.7 |
9.6 |
| 280 |
4.4 |
5.5 |
6.9 |
8.6 |
10.7 |
| 315 |
4.9 |
6.2 |
7.7 |
9.7 |
12.1 |
| 355 |
5.6 |
7.0 |
8.7 |
10.9 |
13.6 |
| 400 |
6.3 |
7.9 |
9.8 |
12.3 |
15.3 |
| 450 |
7.0 |
8.8 |
11.0 |
13.8 |
17.2 |
| 500 |
7.8 |
9.8 |
12.3 |
15.3 |
19.1 |
| 560 |
8.8 |
11.0 |
13.7 |
17.2 |
21.4 |
| 630 |
9.9 |
12.3 |
15.4 |
19.3 |
24.1 |
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 a national enterprise technology center, a national CNAS laboratory, academic expert workstations, post-doctoral workstations, and other national technology R&D platforms, Donghong deepens the research on the digitalization, informatization and intelligentization of pipeline engineering and leads the development of the 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.
| Automatic Feeding System |
Integrated Production Line |
Complete Mechanical Control |
| Comprehensive Test |
X-ray Product Inspection |
One-code Track |
|
Donghong has established strategic partnerships with more than 5 5A-level logistics companies, and we have many years of transportation experience. Combining automobile transportation, railway transportation, port and shipping logistics, etc., no matter the heat or cold, no matter if the area is remote or harsh, we can provide you with the best service. We have a comprehensive transportation strategy to ensure that every shipment is delivered to the customer's site as soon as possible.
| Automobile transportation |
Train transportation |
Sea transportation |
1. Does your product meet the international standard?
Our products have passed CE, BV, ISO and Ware certificates, and all figures indicate higher standards. You can feel free to let us know which national standard you require, and we will check or test it for you.
2. What kind of service do you offer?
As a manufacturing facility, we provide pipe products, pipe fittings, packagesand shipping; as a professional consulting company, we provide project consulting advice, pipe system solutions and design suggestions; as an engineering-focused enterprise, we also provide pipeline contractor service and pipe repair service and can also give free maintenance guidance.
3. Do you support OEM/ODM services?
Yes, we offer customization in material, specification, logo, package, connection methods and others. Meanwhile, our professional team can offer solution suggestions for your specified projects; we have successfully provided that service.
4. What are your terms of payment?
T/T or L/C at sight.
5. How can you guarantee that the goods you offer are qualified?
We warmly welcome all customers to arrange a visit to our company and see our goods in person. We can also provide strict tests as per customer requirements before an order. Meanwhile, before bulk production, we can dispatch samples for customers to do their own tests to qualify the products.
The Double Layer Axial Hollow Pipe, also referred to as double layer axial direction hollow wall pipe, is an innovative piping solution featuring two layers of material with a hollow space in between. This design provides enhanced strength and durability while maintaining a lightweight and flexible construction. The hollow space within the pipe allows for efficient transport of fluids or gases, making it suitable for various applications such as drainage, sewage systems, and cable protection. The double-layer design also offers improved resistance to pressure, impact, and environmental factors, ensuring long-term performance and reliability.
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