| 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 the double layer axial direction hollow wall pipe, is a groundbreaking piping solution featuring two robust layers of material with an air space in between. This ingenious design not only enhances strength and durability but also maintains a lightweight and flexible structure. The internal hollow space ensures efficient transport of fluids or gases, making it exceptionally suitable for a diverse range of applications, including drainage, sewage systems, and cable protection. Moreover, the double-layer configuration offers superior resistance to pressure, impacts, and environmental challenges, guaranteeing exceptional long-term performance and reliability.
The Advantages:
Given the same ring stiffness, hollow wall pipe with an optimized structure can save significantly more raw materials compared to solid wall pipe. The product is remarkably lightweight, making it easy to handle and connect, thereby reducing overall project costs. Its innovative design ensures high efficiency and cost-effectiveness in various engineering projects.
The connection method for double-layer Layer Axial Hollow Pipes usually involves joining the sections using compatible fittings or couplings designed specifically for this system. These fittings ensure a secure and watertight seal, allowing efficient fluid or gas transfer. Common techniques include solvent cement welding, mechanical couplings, or compression fittings tailored to the application and pipe material. Some manufacturers might also offer exclusive connection systems for their double-layer axial hollow pipe products.
PVC-U is the most widely used type of PVC for pipes and fittings. It is commonly utilized for transporting drinking water, soil and waste, sewage and underground drainage, and in various industrial applications.
Pipes and fittings made from PVC-U provide numerous benefits. They are a safe choice for drinking water transport because they are lightweight, easy to handle, and cost-effective. Technically, they boast high mechanical performance, durability (lasting at least 100 years for underground pipes), high chemical resistance, and UV resistance. Additionally, PVC-U pipes have excellent environmental profiles and are fully recyclable.
1. Double-Layer Structure: Featuring an inner and outer layer with a hollow space in between, this design enhances structural integrity and durability.
2. Axial Hollow Wall : The axial hollow wall design reduces the pipe's weight while maintaining 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 : Constructed from high-quality PVC materials, the pipe resists corrosion, rust, and chemical degradation, extending its service life even in harsh underground environments.
5. Easy Installation : Its lightweight construction and smooth interior surface ensure easy handling, transportation, and installation, thereby reducing labor and installation costs.
6. Versatile Applications : Ideal for various applications such as stormwater drainage, sewer systems, culverts, and underground utilities, providing adaptable 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 proudly headquartered in the culturally rich city of Qufu, China, the revered hometown of Confucius. As a premier engineering pipeline manufacturer, service provider, and general contractor, we specialize in four key categories of functional and customized pipelines: special pipelines for rainwater and sewage diversion, municipal areas, industrial and mining sectors, and national key engineering projects. Our comprehensive industrial ecosystem integrates design institutes, financial institutions, port logistics, construction units, and an array of upstream and downstream enterprises. We are dedicated to becoming a global leader in pipeline system solutions, revolutionizing human life with intelligent pipelines and ensuring the constant safety of pipeline transportation.
Donghong boasts a formidable R&D team of over 200 experts and holds more than 100 patents. Leveraging prominent national technology R&D platforms such as the National Enterprise Technology Center, National CNAS Laboratory, Academician Expert Workstation, and Post-doctoral Workstation, we delve deeply into the digitalization, informatization, and intelligentization of pipeline engineering. We spearhead the engineering pipeline industry's evolution and contribute to national key strategic projects and critical people's livelihood initiatives, including the South-to-North Water Diversion, Huangzhilin, Hanzhiwei, Beijing-New Zealand Expressway, One Belt, One Road, "Two Clear" operations, and more.
Our impressive portfolio extends to vital projects like One Tip, standardized farmland initiatives, urban and rural water supply integration, Liren gas projects, and centralized heat supply systems. Shandong Donghong Pipe Industry Co., Ltd. is at the forefront of national strategic and people's livelihood projects, continuously driving progress and innovation.
| Automatic Feeding System |
Integrated Production Line |
Complete Mechanical Control |
| Comprehensive Test |
X-ray Product Inspection |
One-code Track |
|
Donghong has established strategic partnerships with over five top-tier, 5A-level logistics companies, boasting extensive transportation experience. Our logistics network integrates automobile transportation, railway systems, port facilities, and shipping logistics. Whether facing extreme heat, icy conditions, or challenging remote locations, we are committed to delivering unparalleled service. Our robust transportation strategy guarantees prompt delivery of every shipment directly to the customer's site, ensuring efficiency and reliability in every step of the process.
| Automobile transportation |
Train transportation |
Sea transportation |
1. Does your product meet international standards?
Our products have passed certifications such as CE, BV, ISO, and WRAS. All our performance metrics exceed standard requirements. Please inform us of the national standard you require, and we will verify or test to ensure compliance.
2. What kind of services do you offer?
As a manufacturing factory, we supply pipe products, pipe fittings, packaging, and shipping. As a professional consulting firm, we provide project consultation, pipe system solutions, and design suggestions. Additionally, as an engineering-focused enterprise, we offer pipeline contracting, pipe repair services, and complimentary 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 is ready to provide tailored solutions for your specific projects, and we have a track record of successful cases in this service.
4. What are your terms of payment?
We accept T/T or L/C at sight.
5. How can you guarantee the quality of your goods?
We warmly welcome all customers to visit our company and inspect our goods firsthand. We can also conduct rigorous tests as per customer requirements before placing an order. Additionally, before mass production, we can dispatch samples for customers to conduct their own tests to ensure product qualification.
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