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Our advanced PVC pressure systems are the ultimate choice for an array of applications, including drinking water, recycled water, sewage, and gas distribution. Experience the unparalleled performance and reliability that sets us apart.
At DHPI, we take immense pride in crafting a diverse range of premium-quality PVC pressure pipes and fittings. Utilizing only the highest-grade raw materials and industry-leading practices, we ensure exceptional durability and performance.
PVC-UH represents the next evolution of PVC-U, offering enhanced features and diverse color options for various applications. It is ideally suited for water mains, water supply, recycled water, irrigation, and pressure sewerage systems. Standard pipes are available in 6 m lengths with spigot and socket ends for efficient rubber ring jointing (RRJ).
Introducing our groundbreaking pressure sewage drainage pipe. It features an innovative online built-in integrated steel skeleton sealing connection structure that ensures swift and seamless installation. This design guarantees superior installation quality and connection integrity, effectively eliminating pipeline joint leakage and ensuring a zero-leakage pipe network with high strength.
The connection method for UPVC drainage pipes typically involves joining the sections of pipe using compatible fittings or couplings specifically designed for this type of piping system. These fittings are often designed to provide a secure and watertight seal between pipe sections, ensuring efficient fluid or gas transfer. Common connection methods include solvent cement welding, mechanical couplings, or compression fittings, depending on the specific requirements of the application and the pipe material.
PVC-U is the most common PVC type for pipes and fittings, including transportation of drinking water, soil and waste, sewage and underground drainage, and industrial applications.
Pipes and fittings made of PVC-U have many benefits. They are a safe choice for transportation of drinking water, light and 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. High Strength: Despite its lightweight design, the pipe offers high strength and resistance to external loads, ensuring long-term reliability in underground applications.
2. 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.
3. Easy Installation: The lightweight construction and smooth interior surface of the pipe facilitate easy handling, transportation, and installation, reducing labor and installation costs.
4. Versatility 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 |
| 0.5 |
0.63 |
0.8 |
1.0 |
1.25 |
1.6 |
2.0 |
2.5 |
| Nominal wall thickness (en/mm) |
| 110 |
- |
2.7 |
3.4 |
4.2 |
5.3 |
6.6 |
8.1 |
10.0 |
| 125 |
- |
3.1 |
3.9 |
4.8 |
6.0 |
7.4 |
9.2 |
11.4 |
| 140 |
- |
3.5 |
4.3 |
5.4 |
6.7 |
8.3 |
10.3 |
12.7 |
| 160 |
- |
4.0 |
4.9 |
6.2 |
7.7 |
9.5 |
11.8 |
14.6 |
| 180 |
- |
4.4 |
5.5 |
6.9 |
8.6 |
10.7 |
13.3 |
16.4 |
| 200 |
- |
4.9 |
6.2 |
7.7 |
9.6 |
11.9 |
14.7 |
18.2 |
| 225 |
- |
5.5 |
6.9 |
8.6 |
10.8 |
13.4 |
16.6 |
20.5 |
| 250 |
- |
6.2 |
7.7 |
9.6 |
11.9 |
14.8 |
18.4 |
22.7 |
| 280 |
- |
6.9 |
8.6 |
10.7 |
13.4 |
16.6 |
20.6 |
25.4 |
| 315 |
- |
7.7 |
9.7 |
12.1 |
15.0 |
18.7 |
23.2 |
28.6 |
| 355 |
- |
8.7 |
10.9 |
13.6 |
16.9 |
21.1 |
26.1 |
32.2 |
| 400 |
- |
9.8 |
12.3 |
15.3 |
19.1 |
23.7 |
29.4 |
36.3 |
| 450 |
- |
11.0 |
13.8 |
17.2 |
21.5 |
26.7 |
33.1 |
40.9 |
| 500 |
- |
12.3 |
15.3 |
19.1 |
23.9 |
29.7 |
36.8 |
45.4 |
| 560 |
- |
13.7 |
17.2 |
21.4 |
26.7 |
33.2 |
41.2 |
- |
| 630 |
- |
15.4 |
19.3 |
24.1 |
30.0 |
37.4 |
46.3 |
- |
| 710 |
- |
17.4 |
21.8 |
27.2 |
33.9 |
42.1 |
52.2 |
- |
| 800 |
15.7 |
19.6 |
24.5 |
30.6 |
38.1 |
47.4 |
- |
- |
| 900 |
17.6 |
22.0 |
27.6 |
34.4 |
42.9 |
53.3 |
- |
- |
| 1000 |
19.6 |
24.5 |
30.6 |
38.2 |
47.7 |
- |
- |
- |
| 1200 |
23.5 |
29.4 |
36.7 |
45.9 |
- |
- |
- |
- |
| 1400 |
27.4 |
34.3 |
42.9 |
53.5 |
- |
- |
- |
- |
| 1600 |
31.3 |
39.2 |
49.0 |
- |
- |
- |
- |
- |
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 workstationsand other national technology R&D platforms, Donghong deepens the research on 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, information, 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, package and 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.
Introducing our groundbreaking pressure sewage drainage pipe. It features an innovative online built-in integrated steel skeleton sealing connection structure that ensures swift and seamless installation. This design guarantees superior installation quality and connection integrity, effectively eliminating pipeline joint leakage and ensuring a zero-leakage pipe network with high strength.
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