Our state-of-the-art PVC pressure systems are widely recognized for their use in drinking water, recycled water, sewage management, and gas distribution. These systems provide safe and reliable solutions for a multitude of applications, ensuring optimal performance in transporting essential resources.
At Shandong Donghong Pipe Industry Co., Ltd. (DHPI), we are dedicated to producing an extensive range of premium-quality PVC pressure pipes and fittings. Harnessing top-tier raw materials and adhering to industry-leading best practices, we deliver products that epitomize excellence and set benchmarks in the industry.
Our PVC-UH pipes, an advanced iteration of PVC-U, are available in various colors to suit specific applications, including 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.
Introducing our innovative pressure sewage drainage pipe, featuring a cutting-edge online built-in integrated forming steel skeleton sealing connection structure. This breakthrough design facilitates quick and effortless installation, ensuring optimal quality and leak-proof connections. By fundamentally eliminating joint leakage issues, our product guarantees zero leakage in pipe network operations, coupled with exceptional strength.
Our high-performance PVC-UH water supply pipe is engineered with an integrally formed steel skeleton sealing connection structure. This meticulous design offers unparalleled connection reliability and tightness, significantly boosting the pipe's mechanical properties. With high strength, superior pressure tolerance, and exceptional ring stiffness, our pipes are perfect for outdoor buried installations and pipe gallery setups.
Exceptional Environmental Adaptability: The enhanced toughness of our pipelines enables them to effectively withstand point loads and uneven foundation settlements. This makes them suitable for non-standard constructions and the most challenging working conditions, providing unmatched resilience.
Outstanding Chemical Corrosion Resistance: Our pipes are engineered to resist corrosion from a wide array of media, ensuring soil substances do not compromise the pipeline. With a remarkable lifespan of ≥50 years, our pipes offer unparalleled long-term reliability and peace of mind.
Superior Hydraulic Performance: Our pipes are designed to absorb impact energy from water pressure fluctuations, enhancing resistance to water hammer. This reduces operational risks, improves water supply efficiency, and significantly lowers operating costs, delivering superior performance and reliability.
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 versatile option to choose between the reliable solvent socket bonding or the durable elastic socket sealing ring.
For calibers DN225 and above, elastic socket sealing rings are employed. The robust steel skeleton rubber ring range spans an impressive 110-1200mm.
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. By leveraging our extensive network and optimizing each step of the logistics process, we stand as the epitome of dependable and time-sensitive delivery in the industry.
Donghong is unwavering in its commitment to elevating service standards. Through the implementation of an exhaustive 9S worry-free service system, we guarantee unparalleled ease and complete safety for our global customers. This intricate system ensures that clients from every part of the world can experience the superior quality and reliability of Donghong products with absolute confidence and peace of mind.
| 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?
Absolutely! Our products have proudly passed CE, BV, ISO, and WRAS certifications, with all performance metrics surpassing standard requirements. If you have a specific national standard in mind, simply let us know and we'll either verify or conduct the necessary tests to ensure compliance.
2. What kinds of services do you offer?
As a leading manufacturing factory, we provide an extensive range of pipe products, pipe fittings, packaging, and shipping services. Our expertise doesn't end there; as a professional consultancy, we offer valuable project consulting advice, comprehensive pipe system solutions, and innovative design suggestions. Moreover, our engineering prowess enables us to offer pipeline contracting services, exceptional pipe repair services, and free maintenance guidance.
3. Do you support OEM/ODM services?
Certainly! We offer extensive customization options for materials, specifications, logos, packaging, and connection methods. Our expert team is adept at providing tailored solution suggestions for your specific projects, backed by a wealth of successful cases.
4. What are your terms of payment?
We accept payments via T/T or L/C at sight, ensuring a smooth and secure transaction process.
5. How can you guarantee the quality of the goods you offer?
We take quality assurance seriously. We warmly invite all customers to visit our company and inspect our goods firsthand. We can also conduct stringent tests as per customer requirements before finalizing orders. Additionally, we offer sample dispatch prior to bulk production, allowing customers to conduct their own quality assessments.
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