Our groundbreaking PVC pressure systems are setting new standards in the industry by offering unparalleled solutions for potable water, reclaimed water, wastewater, and gas distribution. Experience the cutting-edge technology in our systems that ensures unmatched performance for all your water and gas requirements.
At DHPI, we pride ourselves on crafting a diverse range of top-tier PVC pressure pipes and fittings. Our unwavering commitment to sourcing the finest raw materials and implementing state-of-the-art manufacturing techniques guarantees outstanding and long-lasting results.
Introducing our state-of-the-art PVC-UH line, the superior alternative to traditional PVC-U. Available in multiple colors tailored for various uses, it excels in water mains, potable water supply, reclaimed water systems, irrigation, and pressurized sewage. Each pipe comes in standard 6m lengths with spigot and socket ends for efficient rubber ring jointing (RRJ), ensuring seamless installation.
Presenting our cutting-edge pressure sewage drainage pipe, featuring an integrated steel skeleton sealing connection. This innovative design ensures quick and effortless installation, superior connection integrity, and eliminates joint leaks, providing a robust, zero-leakage pipe network.
Our high-performance PVC-UH water supply pipe features a seamlessly integrated steel skeleton for exceptional sealing and connection reliability. The enhanced design significantly improves the pipe's mechanical properties, offering high strength, pressure resistance, and ring stiffness, making it ideal for outdoor and gallery installations.
Unmatched Environmental Adaptability: Our pipelines showcase extraordinary toughness, effectively withstanding point loads and uneven foundation settlement. They adapt effortlessly to non-standard constructions and challenging conditions, proving their superiority in the harshest environments.
Exceptional Chemical Corrosion Resistance: Our pipes withstand exposure to various corrosive media, ensuring that soil substances do not compromise the pipeline. With a lifespan exceeding 50 years, our pipelines guarantee long-term reliability and durability.
Superior Hydraulic Performance: Our pipes absorb impact energy from water pressure fluctuations, enhancing resistance to water hammer. This improvement reduces operational risks, boosts water supply efficiency, and lowers operating costs, ensuring peak 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 |
- |
- |
- |
- |
- |
Innovative Solvent Socket Bonding Type
Solvent Socket Bonding Type: Tailored for DN20-DN50 caliber ranges
Advanced Elastic Socket Sealing Ring
For N63-DN225 calibers, select either the cutting-edge solvent socket bonding or the highly reliable elastic socket sealing ring options.
For DN225 calibers and above, employ robust elastic socket sealing rings. Our extensive steel skeleton rubber ring range spans diameters from 110-1200mm, ensuring unparalleled performance and flexibility.
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! This landmark achievement underscores our reputation and the trust we have built within the industry.
The Donghong Pipe Industry Testing Center is proud to have received the prestigious national CNAS testing center certification from the National Standards and Accreditation Committee. This certification is a testament to our unwavering commitment to excellence and quality assurance.
Our state-of-the-art factory features a large storage bin and a fully automatic centralized mixing, blending, and transfer system. This advanced, closed management process, from production to extruder entry, effectively prevents secondary contamination, ensuring 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 ground-breaking initiative ensures that customers worldwide can enjoy seamless and secure utilization of Donghong products, no matter where they are located. Our 9S Full Worry-Free Service is meticulously designed to offer unparalleled support and reliability, guaranteeing peace of mind and satisfaction for all our esteemed clients.
| 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?
Absolutely. Our products have achieved CE, BV, ISO, and WARS certifications, with all metrics surpassing standard requirements. Please let us know the specific national standard you need, and we will verify or test it accordingly.
2. What kind of services do you offer?
As a premier manufacturing factory, we provide an array of pipe products, pipe fittings, packaging, and shipping services. As a seasoned consulting company, we offer professional project consulting, pipe system solutions, and design recommendations. Moreover, as an engineering-centric enterprise, we deliver pipeline contractor services, pipe repair services, and complimentary maintenance guidance.
3. Do you support OEM/ODM services?
Yes, we provide comprehensive customization options, including materials, specifications, logos, packaging, and connection methods. Our expert team can also develop bespoke solutions for your unique projects, backed by a strong portfolio of successful cases.
4. What are your terms of payment?
We accept 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 personally. We can also undertake rigorous testing as per your specifications prior to order placement. Additionally, we offer sample dispatch before bulk production, enabling you to conduct your own assessments and ensure product quality.
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