Our PVC pressure systems stand as a testament to reliability and versatility, perfectly suited for applications such as drinking water, recycled water, sewage, and gas distribution.
At DHPI, we take immense pride in our comprehensive range of top-tier PVC pressure pipes and fittings. We ensure superior quality by utilizing the finest raw materials and adhering to the industry's best practices.
PVC-UH, our upgraded version of PVC-U, is available in various colors tailored for different applications, primarily for water mains, water supply, recycled water, irrigation, and pressure sewerage. Each pipe comes in standard 6m effective lengths with spigot and socket ends for seamless rubber ring jointing (RRJ).
Introducing our innovative pressure sewage drainage pipe with an integrated steel skeleton sealing connection structure for easy and quick installation. This design guarantees installation quality and connection tightness, effectively eliminating joint leakage and ensuring zero-leakage pipe network operations, while boasting high strength.
Our high-performance PVC-UH water supply pipe features an integrally formed steel skeleton sealing connection structure, enhancing connection reliability and tightness. This robust design significantly improves the pipe's mechanical properties, offering high strength, high pressure resistance, and high ring stiffness, ideal for outdoor buried installations and pipe gallery applications.
Outstanding Environmental Adaptability: The enhanced toughness of our pipeline effectively resists point loads and uneven foundation settlement, making it perfect for non-standard construction and demanding conditions.
Superior Chemical Corrosion Resistance: Our pipeline can withstand a variety of corrosive media, ensuring the substances in the soil do not degrade it. This durability translates to a pipeline lifespan of 50+ years.
Exceptional Hydraulic Performance: Our design effectively absorbs the impact energy from water pressure fluctuations, enhancing the pipeline's resistance to water hammer, reducing operational risks, improving water supply efficiency, and lowering operational 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
N63-DN225 calibers can choose between solvent socket bonding or elastic socket sealing rings.
For DN225 calibers and above, elastic socket sealing rings are used. The steel skeleton rubber ring range spans from 110mm to 1200mm.
Shandong Donghong Pipe Industry Co., Ltd. (referred to as: Donghong Co., Ltd., stock code: 603856), proudly headquartered in the historic city of Qufu, China, the revered hometown of Confucius, stands as a premier engineering pipeline manufacturer, service provider, and general contractor. Our core business encompasses four primary categories of functional and customized pipelines: specialized pipelines for rainwater and sewage diversion, dedicated pipelines for municipal regions, tailored pipelines for industrial and mining sectors, and exclusive pipelines for national key engineering projects. Donghong Co., Ltd. has meticulously constructed a comprehensive industrial ecosystem, collaborating with design institutes, financial institutions, port logistics, construction units, and upstream and downstream enterprises. We are steadfastly committed to evolving into a global leader in providing comprehensive pipeline system solutions, ensuring intelligent pipelines that enhance human life and uphold the perennial safety of pipeline transportation.
On November 6, 2017, Donghong Pipe Industry proudly marked a significant milestone by being listed on the Shanghai Stock Exchange, distinguishing itself as the first company in the plastic pipe industry to achieve this honor on the main board!
In recognition of our unwavering commitment to excellence, the Donghong Pipe Industry Testing Center has been officially accredited as a national CNAS testing center by the esteemed National Standards and Accreditation Committee.
Our state-of-the-art factory is outfitted with an expansive storage bin, a fully automated centralized mixing, blending, and transfer system. This advanced setup ensures the meticulous closed management of raw materials from production to extruder entry, thereby effectively preventing secondary contamination and guaranteeing superior product quality.
Donghong has proudly established strategic alliances with over five 5A-level logistics giants, leveraging our extensive transportation expertise. Whether navigating the heat of summer or the chill of winter, our robust logistics network-including automotive, railway, port, and maritime transport-ensures impeccable service delivery. Regardless of remoteness or challenging conditions, we are committed to providing unparalleled service. Our comprehensive transportation strategy guarantees that every shipment reaches the customer's location promptly and efficiently.
At Donghong, we are committed to continuous improvement in our service excellence. Introducing our 9S Full Worry-Free Service, we ensure that customers across the globe experience the smooth and safe usage of Donghong products. Our dedication to service means you can always rely on us for unparalleled support and satisfaction.
| 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 performance metrics surpass standard requirements. Please let us know the specific national standard you need, and we will verify or test it for you.
2. What types of services do you offer?
As a manufacturing factory, we supply pipe products, pipe fittings, packaging, and shipping services. As a professional consulting company, we offer project consulting, pipe system solutions, and design suggestions. As an engineering-focused enterprise, we also provide pipeline contracting and repair services, along with free maintenance guidance.
3. Do you support OEM/ODM services?
Yes, we offer customization in material, specifications, logos, packaging, connection methods, and more. Our expert team can provide tailored solutions for your specific projects, and we have a proven track record of successful cases.
4. What are your payment terms?
We accept T/T or L/C at sight.
5. How do you ensure that the goods you offer are qualified?
We warmly welcome all customers to visit our company and inspect our products firsthand. We can also conduct stringent tests as required by customers before order placement. Additionally, samples can be dispatched before bulk production for customers to perform their own quality tests.
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