Our advanced PVC pressure systems are extensively utilized for drinking water, recycled water, sewage management, and gas distribution. These systems ensure the safe and reliable transportation of vital resources across various applications, revolutionizing the infrastructure of water and gas management.
At DHPI, we take immense pride in manufacturing a comprehensive range of superior-quality PVC pressure pipes and fittings. By leveraging the finest raw materials and industry-leading best practices, we deliver products that set new standards for excellence and reliability in the piping industry.
PVC-UH, an enhanced version of PVC-U, is available in a variety of colors tailored for specific applications such as water mains, water supply, recycled water, irrigation, and pressure sewerage. These pipes come in standard 6m lengths with spigot and socket ends designed for rubber ring jointing (RRJ), ensuring a seamless and secure connection for optimal performance.
Introducing our groundbreaking pressure sewage drainage pipe, engineered with a revolutionary online built-in integrated forming steel skeleton sealing connection structure. This innovative design ensures quick and effortless installation, guaranteeing optimal quality and leak-tight connections. By fundamentally addressing joint leakage issues, our product ensures zero leakage in pipe network operations, paired with unmatched strength and durability.
The high-performance PVC-UH water supply pipe is crafted with an integrally formed steel skeleton sealing connection structure. This advanced design ensures exceptional connection reliability and tightness, significantly enhancing the pipe's mechanical properties. Our pipes offer high strength, superior pressure tolerance, and remarkable ring stiffness, making them ideal for outdoor buried installations and pipe gallery setups.
Exceptional Environmental Adaptability: The enhanced toughness of our pipelines allows them to effectively withstand point loads and uneven foundation settlements. This makes our pipes suitable for non-standard constructions and challenging working conditions, ensuring long-term resilience and reliability.
Outstanding Chemical Corrosion Resistance: Our pipes exhibit superior resistance to corrosion from a wide range of media, ensuring that soil substances do not degrade the pipeline. With a lifespan of ≥50 years, our pipes promise long-term reliability and performance.
Superior Hydraulic Performance: Our pipes are designed to absorb impact energy from water pressure fluctuations, enhancing resistance to water hammer and reducing operational risks. This improves water supply efficiency and lowers operating costs, making our pipes an ideal choice for modern infrastructure.
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 flexibility to choose between solvent socket bonding or elastic socket sealing ring options, ensuring a reliable and secure connection.
For calibers DN225 and above, elastic socket sealing rings are utilized. The steel skeleton rubber ring range caters to diameters spanning from 110mm to 1200mm, providing robust and durable sealing solutions.
Shandong Donghong Pipe Industry Co., Ltd. (referred to as: Donghong Co., Ltd., stock code: 603856) stands prominently in Qufu, China, the esteemed hometown of Confucius. As a vanguard in engineering pipeline manufacturing, Donghong Co., Ltd. excels as a preeminent service provider and general contractor. Our core proficiency spans across four pivotal categories of functional and bespoke pipelines: pioneering solutions for rainwater and sewage diversion, state-of-the-art municipal area piping, resilient industrial and mining area pipelines, and specialized pipelines for national key engineering projects. We have meticulously cultivated an industrial ecosystem encompassing design institutes, financial institutions, port logistics, construction units, and both upstream and downstream enterprises. At Donghong Co., Ltd., our unwavering ambition is to ascend as a global leader in comprehensive pipeline system solutions, transforming human life with intelligent pipelines and ensuring enduring safety in pipeline transportation.
On November 6, 2017, Donghong Pipe Industry celebrated a landmark achievement by being listed on the prestigious Shanghai Stock Exchange, becoming the first company in the plastic pipe industry to secure this esteemed recognition on the main board!
Demonstrating unparalleled excellence and credibility, the Donghong Pipe Industry Testing Center has been honored with the national CNAS testing center accreditation by the National Standards and Accreditation Committee, underscoring our commitment to superior quality and industry standards.
Our cutting-edge factory is equipped with a large storage bin, fully automatic centralized mixing, blending, and transfer system. This sophisticated setup ensures closed management of raw materials from production to extruder entry, effectively eliminating secondary contamination and guaranteeing unmatched product quality.
Donghong has established powerful strategic alliances with more than five top-tier 5A-level logistics giants, backed by a wealth of transportation expertise amassed over the years. By expertly blending automobile transport, railway logistics, and port shipping, we deliver unmatched service even in extreme temperatures and challenging, remote locations. Our strong and nimble transportation strategy ensures that every order is delivered promptly and securely to your site, guaranteeing maximum reliability and efficiency.
Donghong continuously enhances its service details by implementing a comprehensive 9S worry-free service system. This dedication ensures that customers from any corner of the globe can utilize Donghong products with unmatched ease and absolute safety. Our 9S service system is meticulously designed to address every customer need, providing seamless support from installation to maintenance. Trust in Donghong means trusting in unparalleled quality, reliability, and a commitment to excellence that transcends borders.
| 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 carry CE, BV, ISO, and WRAS certifications, ensuring that all metrics surpass standard requirements. Should you need compliance with specific national standards, just let us know, and we will verify or conduct tests to meet those criteria.
2. What kinds of services do you offer?
As a manufacturing powerhouse, we offer an extensive range of pipe products, fittings, and comprehensive packaging and shipping services. As expert consultants, we provide project advisory, advanced pipe system solutions, and tailored design suggestions. In our role as an engineering-centric enterprise, we excel in pipeline contracting, pipe repair, and offer complimentary maintenance guidance.
3. Do you support OEM/ODM services?
Absolutely! We provide extensive customization options including material, specifications, logos, packaging, connection methods, and beyond. Our expert team is adept at crafting solution suggestions tailored to your specific projects, boasting a track record of numerous successful implementations.
4. What are your terms of payment?
We efficiently facilitate transactions via T/T or L/C at sight.
5. How can you guarantee the quality of the goods you offer?
We wholeheartedly invite all customers to visit our facilities and personally inspect our products. We also perform rigorous tests as per customer requirements before finalizing orders. For additional assurance, we can provide samples prior to bulk production, allowing customers to conduct their own quality evaluations.
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