Our premium PVC pressure systems are essential for a wide array of applications, including drinking water, recycled water, sewage, and gas distribution.
At Shandong Donghong Pipe Industry Co., Ltd. (DHPI), we take immense pride in our meticulously crafted range of high-quality PVC pressure pipes and fittings. Our commitment to excellence ensures we use only the best raw materials and the most advanced manufacturing practices in the industry.
Our PVC-UH pipes represent a significant upgrade from traditional PVC-U. Available in an array of colors tailored for specific applications, these pipes are ideal for watermains, water supply, recycled water systems, irrigation, and pressure sewerage solutions. Each pipe is supplied in standard 6-meter lengths, featuring spigot and socket ends for efficient rubber ring jointing (RRJ), ensuring seamless connectivity.
Introducing our groundbreaking pressure sewage drainage pipe, designed with an innovative built-in steel skeleton sealing connection structure. This ensures quick and easy installation, superior installation quality, and tight connections, effectively eliminating joint leakage and ensuring a zero-leakage operation. These pipes boast high strength and reliability.
Our high-performance PVC-UH water supply pipes feature a robust integrally formed steel skeleton, guaranteeing superior connection reliability and tightness. The advanced design significantly enhances the mechanical properties, providing exceptional strength, high pressure handling, and superior ring stiffness. Ideal for outdoor buried ground installations and pipe galleries.
Unmatched Environmental Adaptability: Our pipes exhibit remarkable toughness, effectively countering point loads and uneven foundation settlements. They are perfectly suited for non-standard construction and the most demanding working conditions.
Outstanding Chemical Corrosion Resistance: Our pipes resist a wide range of media corrosion, ensuring that substances in the soil do not degrade the pipeline. Designed for longevity, our pipes have a lifespan of over 50 years.
Superior Hydraulic Performance: Our pipes adeptly absorb the impact energy from water pressure fluctuations, enhancing their ability to withstand water hammer. This improves operational safety, boosts water supply efficiency, and lowers operating costs.
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: DN20-DN50 caliber
Elastic socket sealing ring
For N63-DN225 calibers, you have the flexibility to choose between a solvent socket bonding connection or an elastic socket sealing ring;
For DN225 calibers and above, we offer elastic socket sealing rings. Additionally, our steel skeleton rubber ring range caters to calibers from 110mm to a substantial 1200mm.
Shandong Donghong Pipe Industry Co., Ltd. (referred to as: Donghong Co., Ltd., stock code: 603856) is headquartered in Qufu, China, the illustrious hometown of Confucius. As a premier engineering pipeline manufacturer, pipeline engineering service provider, and general contractor, our core business revolves around four specialized categories of functional and customized pipelines: bespoke pipelines for rainwater and sewage diversion, dedicated pipelines for municipal use, specialized pipelines for industrial and mining sectors, and essential pipelines for national key engineering projects. Donghong Co., Ltd. has meticulously crafted an industrial ecosystem that integrates design institutes, financial institutions, port logistics, construction units, and both upstream and downstream enterprises. Our unwavering commitment is to evolve into a global pioneer in providing comprehensive pipeline system solutions, revolutionizing human life with intelligent pipelines and ensuring the utmost safety in pipeline transportation.
On November 6, 2017, Donghong Pipe Industry proudly made its debut on the Shanghai Stock Exchange, setting a milestone as the first publicly listed company on the main board within the plastic pipe industry!
Donghong Pipe Industry Testing Center has achieved national recognition by being rated as a CNAS testing center by the National Standards and Accreditation Committee.
Our state-of-the-art factory is equipped with a large storage bin and a fully automatic centralized mixing, blending, and transfer system. This advanced setup ensures closed management of raw materials from production to extruder entry, efficiently preventing secondary contamination and guaranteeing superior product quality.
Donghong has forged elite partnerships with over 5 top-tier 5A-level logistics companies, boasting years of unparalleled transportation expertise. Leveraging a diverse array of logistics options, including automobile, railway, and maritime shipping, we ensure seamless deliveries regardless of extreme weather conditions or remote locations. Our robust and comprehensive transportation strategy guarantees that every shipment reaches the customer's site with unmatched speed and reliability, providing you with unparalleled service excellence.
Donghong continuously elevates service excellence by refining every detail, establishing our comprehensive 9S full worry-free service. This ensures that customers across the globe can enjoy the seamless and secure use of Donghong products.
| 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, and all metrics exceed standard requirements. Please inform us of the specific national standards you need, and we will verify or test our products accordingly.
2. What services do you offer?
As a manufacturing factory, we provide pipe products, fittings, packaging, and shipping. As a professional consultation company, we offer project consulting, pipe system solutions, and design recommendations. Additionally, as an engineering-focused enterprise, we provide pipeline contractor services, pipe repair services, and free 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 provide tailored solutions for your specific projects, and we have a proven track record of successful cases.
4. What are your terms of payment?
We accept T/T or L/C at sight.
5. How do you guarantee the quality of your goods?
We warmly welcome all customers to visit our company and inspect our goods in person. We can also conduct rigorous testing as per customer requirements before order placement. Additionally, before bulk production, we can dispatch samples for customers to perform their own tests to ensure product quality.
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