| 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 |
The Double Layer Axial Hollow Pipe, also referred to as the double layer axial direction hollow wall pipe, is a groundbreaking piping solution that boasts two robust layers of material with an intelligently designed hollow space in between. This sophisticated design not only amplifies strength and durability but also ensures a lightweight and highly flexible construction. The innovative hollow core of the pipe facilitates the efficient transport of fluids or gases, making it exceptionally versatile for a myriad of applications including drainage, sewage systems, and cable protection. Furthermore, the dual-layer construction provides superior resistance to pressure, impact, and environmental factors, guaranteeing long-term performance and unparalleled reliability.
Key Advantages:
With the same ring stiffness, the hollow wall pipe with an optimized structure significantly reduces the usage of raw materials compared to the solid wall pipe. This product is remarkably lightweight, making it easy to handle and connect, thus minimizing project costs. Its user-friendly design ensures efficient installation and exceptional cost-effectiveness.
The connection method for Double Layer Axial Hollow Pipes typically involves joining sections using compatible fittings or couplings specifically designed for this piping system. These fittings ensure a secure and watertight seal between pipe sections, enabling efficient fluid or gas transfer. Common methods include solvent cement welding, mechanical couplings, or compression fittings, depending on the application and pipe material. Additionally, some manufacturers offer proprietary connection systems tailored to their double layer axial hollow pipe products.
PVC-U is the most commonly used PVC type for pipes and fittings, suitable for transporting drinking water, soil and waste, sewage and underground drainage, and various industrial applications.
Pipes and fittings made of PVC-U offer numerous benefits. They are a safe choice for transporting drinking water, light and easy to handle, and cost-effective. Their technical properties include high mechanical performance, excellent durability (lasting at least 100 years for underground pipes), high chemical resistance, and UV exposure resistance. Additionally, PVC-U pipes boast favorable environmental profiles and are 100% recyclable.
1.
Double-Layer Structure : This pipe consists of two layers - an inner 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 pipe's overall weight while maintaining its strength, making it easier to handle and install.
3. High Strength: Despite its lightweight design, this 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, this pipe is resistant to corrosion, rust, and chemical degradation, prolonging its service life even in harsh underground environments.
5. Easy Installation : The pipe's lightweight construction and smooth interior surface facilitate easy handling, transportation, and installation, reducing labor and installation costs.
6. Versatile Applications : This 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. (hereafter referred to as 'Donghong Co., Ltd.', stock code: 603856), is majestically headquartered in the renowned city of Qufu, China, the birthplace of Confucius. As a pioneering engineering pipeline manufacturer, a comprehensive pipeline engineering service provider, and a general contractor, Donghong specializes in four key categories of functional and customized pipelines: rainwater and sewage diversion pipelines, municipal area pipelines, industrial and mining area pipelines, and pipelines for national key engineering projects. Our industrial ecosystem thrives through the collaboration of design institutes, financial institutions, port logistics, construction units, and upstream and downstream enterprises. We are steadfastly committed to becoming a global leader in providing comprehensive pipeline solutions, aiming to revolutionize human living standards through advanced intelligent pipelines and ensuring constant safety in pipeline transportation.
Boasting an impressive team of over 200 R&D personnel and holding more than 100 patents, Donghong leverages prestigious national technology R&D platforms like the National Enterprise Technology Center, National CNAS Laboratory, Academician Expert Workstation, and Post-doctoral Workstation. Our relentless pursuit of innovation in the digitalization, informatization, and intelligentization of pipeline engineering establishes us as the vanguard of the engineering pipeline industry. Donghong plays a pivotal role in national key strategic projects and public welfare initiatives, such as the South-to-North Water Diversion, Huangzhilin, Hanzhiwei, Beijing-New Zealand Expressway, the Belt and Road Initiative, 'Two Clear and One Tip,' standardized farmland, urban and rural water supply integration, Liren gas, centralized heat supply, and beyond.
Standardized farmland, urban and rural water supply integration, Liren gas, centralized heat supply, and other key livelihood projects are among the numerous national initiatives in which the company has actively participated, showcasing our commitment to enhancing public welfare and infrastructure development.
| Automatic Feeding System |
Integrated Production Line |
Complete Mechanical Control |
| Comprehensive Test |
Xray Product Inspection |
One-code Track |
|
Donghong has established strategic partnerships with an elite selection of over five 5A-level logistics companies, leveraging years of unparalleled transportation expertise. By seamlessly integrating automobile transport, railway freight, and port shipping logistics, we ensure reliable service in all conditions-whether facing extreme heat, severe cold, remote locations, or challenging terrains. Our meticulously crafted transportation strategy guarantees that every shipment reaches our customers' sites swiftly and efficiently, providing you with the best in class service.
| Automobile transportation |
Train transportation |
Sea transportation |
1. Does your product meet international standards?
Our products have successfully passed CE, BV, ISO, and WARS certification. All metrics exceed the standard requirements. Feel free to inform us of the specific national standard you need; we will verify or test it accordingly for you.
2. What services do you offer?
As a manufacturing factory, we provide high-quality pipe products, pipe fittings, packaging, and shipping. As a professional consultancy, we offer project consulting advice, pipe system solutions, and design suggestions. Additionally, as an engineering-focused enterprise, we provide comprehensive pipeline contracting services, pipe repair services, and free maintenance guidance.
3. Do you support OEM/ODM services?
Yes, we offer customization in material, specifications, logos, packaging, connection methods, and more. Our professional team can also suggest solutions tailored to your specific projects. We have numerous successful cases demonstrating our expertise in this area.
4. What are your terms of payment?
We accept T/T or L/C at sight.
5. How can you guarantee that the goods you offer are of high quality?
We warmly welcome all customers to visit our company and inspect our products firsthand. We can also conduct rigorous tests as per your requirements before you place an order. Additionally, before bulk production, we can dispatch samples for you to perform your own quality tests.
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