Our cutting-edge PVC pressure systems are meticulously crafted for diverse applications including drinking water, recycled water, sewage management, and gas distribution. These systems guarantee safe, reliable, and efficient transport, ensuring optimal performance and peace of mind across various domains.
At DHPI, we take immense pride in offering an extensive range of premium-quality PVC pressure pipes and fittings. By utilizing top-tier raw materials and industry-leading best practices, we produce products that not only meet but exceed standards of excellence, ensuring unmatched durability and performance.
PVC-UH, an advanced form of PVC-U, is available in a spectrum of colors tailored for applications such as water mains, potable water supply, recycled water, irrigation, and pressure sewerage. These pipes come in standard 6m lengths with spigot and socket ends for rubber ring jointing (RRJ), ensuring a seamless, secure, and reliable connection.
Unveiling our revolutionary pressure sewage drainage pipe, designed with an innovative online integrated forming steel skeleton sealing connection structure. This cutting-edge design ensures rapid and straightforward installation, delivering impeccable installation quality and leak-proof connections. By addressing joint leakage at its core, our product guarantees zero leakage in pipe network operations, combined with exceptional strength and reliability.
Our high-performance PVC-UH water supply pipe features an integrally formed steel skeleton sealing connection structure, ensuring exceptional connection reliability and tightness. This robust design significantly enhances the mechanical properties of the pipe, offering high strength, superior pressure tolerance, and remarkable ring stiffness, making it perfect 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 them ideal for non-standard constructions and challenging working conditions, ensuring durability and reliability.
Outstanding Chemical Corrosion Resistance: Our pipes are engineered to resist corrosion from a wide range of media, ensuring that soil substances do not compromise the integrity of the pipeline. With a projected lifespan of ≥50 years, our pipes offer long-term reliability and peace of mind.
Superior Hydraulic Performance: Expertly designed to absorb impact energy from water pressure fluctuations, our pipes enhance resistance to water hammer, reducing operational risks, improving water supply efficiency, and lowering operating costs. This ensures a reliable and efficient water supply system.
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 select either the solvent socket bonding type or the elastic socket sealing ring. This offers versatility in installation preferences and ensures a secure, leak-proof connection.
For calibers DN225 and above, the elastic socket sealing rings are the preferred choice, providing robust and durable performance. The steel skeleton rubber ring is designed to accommodate a wide range of sizes from 110mm to 1200mm, ensuring a tight and reliable seal for large-scale applications.
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.
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.
| 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 bear the CE, BV, ISO, and WRAS certifications, each surpassing the standard criteria. Simply inform us of the national standard you require, and we will confirm or test it to ensure it aligns perfectly.
2. What range of services do you offer?
As a distinguished manufacturing factory, we deliver high-quality pipe products, pipe fittings, along with comprehensive packaging and shipping services. As trusted consultants, we provide insightful project consulting advice, innovative pipe system solutions, and expert design recommendations. Furthermore, as an engineering-oriented enterprise, we excel in pipeline contracting, efficient pipe repair, and offer complimentary maintenance guidance.
3. Are OEM/ODM services available?
Indeed, we specialize in customization across various dimensions such as material, specifications, logo, packaging, and connection methods. Our seasoned team is equipped to suggest bespoke solutions tailored to your specific projects, bolstered by a wealth of successful case studies.
4. What are your payment terms?
We accommodate payments via T/T or L/C at sight, providing flexibility and convenience.
5. How do you ensure the quality of your products?
We cordially invite all customers for an in-person visit to inspect our offerings. Additionally, we conduct rigorous tests as per customer requirements prior to any order. We also provide samples before bulk production, allowing customers to conduct their own thorough quality assessments.
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