Our PVC pressure systems are exceptionally versatile, making them ideal for applications in drinking water, recycled water, sewage, and gas distribution.
At DHPI, we take immense pride in our extensive array of premium PVC pressure pipes and fittings. We are dedicated to using only the highest quality raw materials and adhering to best practices within the industry to ensure superior products.
PVC-UH represents a significant advancement from traditional PVC-U, offering a variety of colors to suit different applications. It's predominantly used for water mains, water supply, recycled water, irrigation, and pressure sewerage. These pipes come in standard 6m lengths with spigot and socket ends for secure rubber ring jointing (RRJ).
Introducing our cutting-edge pressure sewage drainage pipe, featuring an innovative online built-in integrated forming steel skeleton sealing connection structure. This design allows for rapid and convenient installation, guaranteeing high installation quality and connection tightness. It addresses the issue of pipeline joint leakage, achieving zero-leakage pipe network operation with remarkable strength.
Our high-performance PVC-UH water supply pipe incorporates an integrally formed steel skeleton to ensure reliable and tight connections. The design significantly enhances the pipe's mechanical properties, offering high strength, pressure resistance, and ring stiffness. Ideal for outdoor buried installations and pipe gallery applications.
Exceptional environmental adaptability: The enhanced toughness of our pipeline allows it to effectively withstand point loads and uneven foundation settlements. It adapts to non-standard construction and more challenging working conditions with ease.
Superior chemical corrosion resistance: Our pipelines are resilient against a wide range of corrosive media. The soil's substances do not degrade the pipeline, ensuring a lifespan of over 50 years.
Enhanced hydraulic performance: Our pipes are designed to absorb impact energy from water pressure fluctuations, boosting their ability to resist water hammer. This reduces operational risks, enhances 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 solvent socket bonding or an elastic socket sealing ring.
For DN225 calibers and above, we exclusively use elastic socket sealing rings. The steel skeleton rubber ring range spans from 110mm to an impressive 1200mm.
Shandong Donghong Pipe Industry Co., Ltd. (referred to as: Donghong Co., Ltd., stock code: 603856) is headquartered in the historical city of Qufu, China, the revered hometown of Confucius. As an esteemed engineering pipeline manufacturer, pipeline engineering service provider, and pipeline engineering general contractor, Donghong Co., Ltd. specializes in the production of four categories of high-performance and customized pipelines. These include specialized pipelines for rainwater and sewage diversion, municipal areas, industrial and mining zones, and national key engineering projects. The company has established a robust industrial ecosystem, collaborating with design institutes, financial entities, port logistics, construction units, and both upstream and downstream enterprises. Committed to pioneering the pipeline industry, Donghong Co., Ltd. aims to transform human life and ensure the unwavering safety of pipeline transportation through intelligent pipeline solutions, striving to become a global leader in comprehensive pipeline system solutions.
On November 6, 2017, Donghong Pipe Industry proudly marked a significant milestone by being listed on the prestigious Shanghai Stock Exchange. This achievement established the company as the first listed entity on the main board within the plastic pipe industry.
The Donghong Pipe Industry Testing Center has garnered national acclaim, being accredited as a CNAS testing center by the esteemed National Standards and Accreditation Committee.
Our state-of-the-art factory is equipped with a large storage bin and a fully automated centralized mixing, blending, and transfer system. This advanced setup ensures the raw materials are managed under closed conditions from production to extruder entry, effectively preventing secondary contamination and guaranteeing superior product quality.
Shandong Donghong Pipe Industry Co., Ltd. has forged strategic alliances with over five elite 5A-level logistics companies, boasting extensive expertise in transportation. Whether utilizing automotive fleets, railway networks, or port and maritime logistics, we excel at delivering seamless service regardless of weather extremes or challenging, remote locations. Our meticulously crafted transportation strategy guarantees the swift and efficient delivery of every shipment, ensuring it reaches the customer's site with unparalleled precision and timeliness.
At Donghong, we relentlessly enhance our service offerings, instituting a robust 9S worry-free service system. This ensures that no matter where you are in the world, you can enjoy the seamless and secure experience of using Donghong products.
| Full technical support from an expert team |
Answers to product technical questions |
Construction and installation guidance, material budget |
1. Do your products meet international standards?
Our products proudly exceed international standards, having earned CE, BV, ISO, and WARS certifications. Each figure surpasses standard requirements. Inform us of any specific national standard you need, and we will verify or test our products accordingly, ensuring complete peace of mind.
2. What services do you offer?
As a manufacturer, we provide a wide range of pipe products, pipe fittings, packaging, and shipping services. As a professional consultancy, we offer project consulting, pipe system solutions, and design recommendations. As an engineering-focused enterprise, we deliver pipeline contracting, pipe repair, and free maintenance guidance to meet all your needs.
3. Do you support OEM/ODM services?
Absolutely, we offer extensive customization options in materials, specifications, logos, packaging, and connection methods. Our expert team can provide tailored solutions for your unique projects, backed by a track record of successful implementations.
4. What are your terms of payment?
We accept T/T or L/C at sight.
5. How can you guarantee the quality of your goods?
We warmly invite all customers to visit our company and inspect our products firsthand. We also conduct rigorous tests as per customer requirements before orders are finalized. Additionally, prior to bulk production, we can dispatch samples for customers to independently test and ensure product quality.
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