Our PVC pressure systems are revolutionizing the industry, providing reliable solutions for drinking water, recycled water, sewage, and gas distribution. Discover how our advanced technology ensures superior performance for all your water and gas needs.
At DHPI, we take pride in manufacturing an extensive array of premium PVC pressure pipes and fittings. Our commitment to using only the highest quality raw materials and industry-leading practices guarantees exceptional and enduring results.
Introducing our advanced PVC-UH range, an upgraded solution to traditional PVC-U. Available in various colors to suit different applications, it excels in water mains, water supply, recycled water, irrigation, and pressure sewerage. Each pipe is supplied in standard 6m lengths with spigot and socket ends for efficient rubber ring jointing (RRJ).
Presenting our innovative pressure sewage drainage pipe, featuring an integrated steel skeleton sealing connection. This design ensures fast and easy installation, superior connection tightness, and eliminates joint leakage, delivering a zero-leakage pipe network with unmatched strength.
Our high-performance PVC-UH water supply pipe boasts an integrally formed steel skeleton for superior sealing and connection reliability. The enhanced design significantly boosts the pipe's mechanical properties, offering high strength, pressure, and ring stiffness, ideal for outdoor and gallery installations.
Unmatched Environmental Adaptability: Our pipelines exhibit exceptional toughness, effectively resisting point loads and uneven foundation settlement. They adapt seamlessly to non-standard construction and challenging conditions, proving their worth in the toughest environments.
Exceptional Chemical Corrosion Resistance: Our pipes resist a variety of corrosive media, ensuring that soil substances do not degrade the pipeline. With a lifespan of over 50 years, our pipelines promise long-term reliability and durability.
Superior Hydraulic Performance: Our pipes absorb the impact energy from water pressure fluctuations, boosting resistance to water hammer. This enhancement reduces operational risks, improves water supply efficiency, and lowers operating costs, ensuring optimal performance.
Product Specification
| 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 |
- |
- |
- |
- |
- |
Solvent Socket Bonding Type
Solvent Socket Bonding Type: Available in DN20-DN50 caliber ranges
Elastic Socket Sealing Ring
For N63-DN225 calibers, you can choose between solvent socket bonding or elastic socket sealing ring options.
For DN225 calibers and above, utilize elastic socket sealing rings. Our steel skeleton rubber ring range is extensive, covering diameters from 110-1200mm.
Shandong Donghong Pipe Industry Co., Ltd. (referred to as: Donghong Co., Ltd., stock code: 603856) is proudly headquartered in Qufu, China, the revered hometown of Confucius. As a premier engineering pipeline manufacturer, pipeline engineering service provider, and general contractor, our main business encompasses four categories of specialized and custom pipelines: rainwater and sewage diversion, municipal areas, industrial and mining zones, and national key engineering projects. We have cultivated a robust industrial ecosystem that includes design institutes, financial institutions, port logistics, construction units, and upstream and downstream enterprises. Our mission is to revolutionize human life with intelligent pipelines, ensuring the constant safety of pipeline transportation, and to become a global leader in comprehensive pipeline system solutions.
On November 6, 2017, Donghong Pipe Industry achieved a significant milestone by being listed on the Shanghai Stock Exchange, making history as the first plastic pipe industry company to be listed on the main board!
The Donghong Pipe Industry Testing Center has received the prestigious national CNAS testing center certification from the National Standards and Accreditation Committee, affirming our commitment to excellence.
Our state-of-the-art factory features a large storage bin and a fully automatic centralized mixing, blending, and transfer system. This closed management process, from production to extruder entry, effectively prevents secondary contamination and ensures the highest product quality standards.
Donghong has established strategic partnerships with over five 5A-level logistics companies, leveraging our extensive transportation experience. Our multi-modal logistics network includes automobile transport, railway, port, and shipping services. Regardless of extreme temperatures, remote locations, or challenging conditions, we guarantee exceptional service. Our robust transportation strategy ensures each shipment reaches the customer site promptly and efficiently, delivering unparalleled reliability and speed in every delivery.
Donghong is dedicated to enhancing every aspect of our service, developing the comprehensive 9S Full Worry-Free Service. This initiative ensures that customers worldwide can enjoy seamless and secure utilization of Donghong products, no matter where they are located.
| Full technical support from an expert team |
Answers to product technical questions |
Construction and installation guidance, material budget |
1. Does your product meet international standards?
Our products have passed CE, BV, ISO, and WARS certifications, with all metrics exceeding standard requirements. Feel free to inform us of the national standard you need, and we will verify or test it for you.
2. What kind of services do you offer?
As a manufacturing factory, we provide pipe products, pipe fittings, packaging, and shipping. As a professional consulting company, we offer project consulting advice, pipe system solutions, and design suggestions. Additionally, as an engineering-focused enterprise, we offer pipeline contractor services, pipe repair services, and complimentary maintenance guidance.
3. Do you support OEM/ODM services?
Yes, we offer customization in materials, specifications, logos, packaging, connection methods, and more. Our professional team can also provide tailored solutions for your specific projects, with a proven track record of successful cases.
4. What are your terms of payment?
T/T or L/C at sight.
5. How can you guarantee the quality of the goods you offer?
We warmly welcome all customers to visit our company and inspect our goods firsthand. We can also conduct rigorous tests as per your requirements before placing an order. Additionally, we can dispatch samples before bulk production for you to perform your own tests and ensure product qualification.
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