Our state-of-the-art PVC pressure systems are the backbone of a multitude of applications including drinking water, recycled water, sewage management, and gas distribution. These systems guarantee secure, reliable, and efficient transportation, meeting the highest standards of safety and performance.
At DHPI, we are committed to producing a comprehensive range of top-tier PVC pressure pipes and fittings. Utilizing premier raw materials and cutting-edge industry practices, we deliver products that epitomize quality and excellence, setting a new benchmark in the industry.
PVC-UH, an advanced iteration of PVC-U, is available in an array of colors to suit specific applications such as water mains, potable water supply, recycled water, irrigation, and high-pressure sewerage systems. These pipes come in standard 6-meter lengths and feature spigot and socket ends for rubber ring jointing (RRJ), ensuring a flawless and secure fit.
Introducing our revolutionary pressure sewage drainage pipe, designed with a pioneering built-in integrated forming steel skeleton sealing connection structure. This innovation facilitates swift and effortless installation, guaranteeing superior installation quality and leak-proof connections. Our product addresses joint leakage issues effectively, ensuring zero leakage and unparalleled strength in pipe network operations.
The high-performance PVC-UH water supply pipe is engineered with an integrally formed steel skeleton sealing connection structure, ensuring outstanding connection reliability and tightness. This design significantly enhances the pipe's mechanical properties, making it highly robust, pressure-resistant, and remarkably stiff - ideal for outdoor buried installations and pipe gallery setups.
Exceptional Environmental Adaptability: With enhanced toughness, our pipelines are adept at withstanding point loads and accommodating uneven foundation settlements. This resilience makes them perfect for non-standard constructions and challenging working environments.
Outstanding Chemical Corrosion Resistance: Our pipes are built to resist corrosion from a wide array of media, ensuring the integrity of the pipeline despite the presence of soil substances. Designed for longevity, these pipes offer reliable service for over 50 years.
Superior Hydraulic Performance: Our pipes are designed to absorb the impact energy from water pressure fluctuations, enhancing resistance to water hammer. This feature reduces operational risks, improves water supply efficiency, and lowers overall 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 calibers ranging from DN63 to DN225, you have the option to choose between the reliable solvent socket bonding or the durable elastic socket sealing ring.
For calibers DN225 and above, we exclusively use elastic socket sealing rings; our robust steel skeleton rubber ring range covers an impressive 110-1200mm.
Shandong Donghong Pipe Industry Co., Ltd. (referred to as: Donghong Co., Ltd., stock code: 603856) stands proudly in Qufu, China, the revered hometown of Confucius. As a leading figure in engineering pipeline manufacturing, Donghong Co., Ltd. excels as a distinguished service provider and general contractor. Our core expertise spans across four critical categories of functional and customized pipelines: innovative solutions for rainwater and sewage diversion, cutting-edge municipal area piping, robust industrial and mining area pipelines, and specialized pipelines for national key engineering projects. We have meticulously constructed an industrial ecosystem involving design institutes, financial institutions, port logistics, construction units, and both upstream and downstream enterprises. At Donghong Co., Ltd., we are passionately dedicated to becoming a global frontrunner in comprehensive pipeline system solutions, revolutionizing human life with intelligent pipelines and ensuring perpetual safety in pipeline transportation.
On November 6, 2017, Donghong Pipe Industry proudly marked a milestone by being listed on the prestigious Shanghai Stock Exchange, emerging as the first plastic pipe industry company to achieve this distinguished recognition on the main board!
Demonstrating excellence and credibility, the Donghong Pipe Industry Testing Center has been esteemed with the national CNAS testing center accreditation by the National Standards and Accreditation Committee.
Our state-of-the-art factory boasts a large storage bin, fully automatic centralized mixing, blending, and transfer system. This advanced setup facilitates closed management of raw materials from production to extruder entry, effectively preventing secondary contamination and ensuring unparalleled product quality.
Donghong has forged strategic alliances with over five 5A-level logistics powerhouses, underpinned by years of rich transportation expertise. By seamlessly integrating automobile transport, railway logistics, and port shipping, we ensure unparalleled service regardless of extreme temperatures or challenging, remote locations. Our robust and agile transportation strategy guarantees that every order is expediently and securely delivered to your site, promising utmost reliability and efficiency. Our commitment to excellence ensures that your high-pressure UPVC potable pipes arrive in perfect condition, ready for immediate use in water infrastructure projects for agriculture and farms. With Donghong, you can trust in our dedication to superior packaging and shipping solutions.
Donghong consistently elevates its service standards through the implementation of a robust 9S worry-free service system. This unwavering commitment guarantees that customers worldwide can enjoy the unparalleled convenience and ultimate safety of Donghong products, ensuring a seamless and satisfying experience for all.
| Full technical support from an expert team |
Answers to product technical questions |
Construction and installation guidance, material budget |
1. Does your product comply with international standards?
Our products proudly exceed international standards, having secured certifications such as CE, BV, ISO, and WRAS. All metrics surpass standard requirements. If you require a specific national standard, let us know, and we will either verify or conduct the necessary tests accordingly.
2. What kinds of services do you offer?
As a versatile manufacturing entity, we offer an extensive array of services. These include the provision of pipe products, pipe fittings, comprehensive packaging, and reliable shipping services. Our consultancy expertise spans project consulting, pipe system solutions, and design recommendations. Additionally, our engineering capabilities encompass pipeline contracting, pipe repair services, and complimentary maintenance guidance.
3. Do you support OEM/ODM services?
Absolutely! We offer extensive customization options including material, specifications, logos, packaging, and connection methods. Our experienced team is ready to provide tailored solution suggestions for your specific projects, backed by numerous successful implementations.
4. What are your terms of payment?
We accept payments via T/T or L/C at sight.
5. How can you guarantee the quality of the goods you offer?
We warmly invite all customers to visit our facilities and inspect our goods in person. We can also perform rigorous tests as specified by the customer before finalizing the order. Furthermore, prior to bulk production, we can provide samples for customers to conduct their own quality evaluations.
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