Our PVC pressure systems are revolutionizing the industry by offering dependable solutions for drinking water, recycled water, sewage, and gas distribution. Discover how our state-of-the-art technology ensures exceptional performance for all your water and gas needs, setting a new standard in reliability.
At DHPI, we proudly manufacture a diverse range of premium PVC pressure pipes and fittings. Our dedication to utilizing the highest quality raw materials and employing industry-leading practices guarantees remarkable and lasting results.
Introducing our advanced PVC-UH range, a superior alternative to traditional PVC-U. Available in an array of colors to suit various applications, it excels in water mains, water supply, recycled water, irrigation, and pressure sewerage. Each pipe comes in standard 6m lengths with spigot and socket ends, promoting efficient rubber ring jointing (RRJ).
Presenting our innovative pressure sewage drainage pipe, featuring an integrated steel skeleton sealing connection. This design ensures fast and straightforward installation, exceptional connection tightness, and prevents joint leakage, creating a zero-leakage pipe network with unmatched durability.
Our high-performance PVC-UH water supply pipe features an integrally formed steel skeleton for superior sealing and connection reliability. The enhanced design significantly increases the pipe's mechanical properties, offering high strength, pressure resistance, and ring stiffness, making it ideal for outdoor and gallery installations.
Unmatched Environmental Adaptability: Our pipelines exhibit exceptional toughness, effectively resisting point loads and uneven foundation settlement. They seamlessly adapt to non-standard construction and challenging conditions, proving their value in the toughest environments.
Exceptional Chemical Corrosion Resistance: Our pipes resist various corrosive media, ensuring that soil substances do not degrade the pipeline. With a lifespan exceeding 50 years, our pipelines promise long-term reliability and durability.
Superior Hydraulic Performance: Our pipes absorb the impact energy from water pressure fluctuations, enhancing resistance to water hammer. This improvement reduces operational risks, optimizes water supply efficiency, and lowers operating costs, ensuring peak performance.
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: Available in DN20-DN50 caliber ranges, ensuring a versatile fit for various pipeline needs.
Elastic Socket Sealing Ring
For N63-DN225 calibers, you have the flexibility to choose between solvent socket bonding or elastic socket sealing ring options, allowing for tailored solutions.
For DN225 calibers and above, rely on elastic socket sealing rings. Our extensive steel skeleton rubber ring range accommodates diameters from 110mm to a substantial 1200mm, ensuring robustness and efficiency.
Shandong Donghong Pipe Industry Co., Ltd. (Donghong Co., Ltd., stock code: 603856), proudly located in Qufu, China-Confucius' revered hometown-is a foremost engineering pipeline manufacturer, service provider, and general contractor. Specializing in four distinct pipeline categories-rainwater and sewage diversion, municipal sectors, industrial and mining areas, and pivotal national projects-we lead the industry in innovation. Our thriving industrial ecosystem integrates design institutes, financial entities, port logistics, construction teams, and a spectrum of upstream and downstream partners. Our mission: to transform human life with intelligent pipelines, ensuring the utmost safety in pipeline transportation, and striving to be the global frontrunner in comprehensive pipeline system solutions.
On November 6, 2017, Donghong Pipe Industry marked a historic milestone by becoming the first plastic pipe industry company listed on the main board of the Shanghai Stock Exchange!
The Donghong Pipe Industry Testing Center proudly holds the esteemed national CNAS certification, awarded by the National Standards and Accreditation Committee, which underscores our unwavering commitment to excellence and quality.
Our cutting-edge factory boasts a large storage bin and a fully automated centralized mixing, blending, and transfer system. This closed-loop management process-from production to extruder entry-eliminates secondary contamination, ensuring that our products meet the highest quality standards.
Donghong has established strategic partnerships with over five 5A-level logistics companies, leveraging our extensive transportation experience. Our multi-modal logistics network includes automobile transport, railway, port, and shipping services. Regardless of extreme temperatures, remote locations, or challenging conditions, we guarantee exceptional service. Our robust transportation strategy ensures each shipment reaches the customer site promptly and efficiently, delivering unparalleled reliability and speed in every delivery.
At Shandong Donghong Pipe Industry Co., Ltd., we are unwavering in our commitment to excellence in service. Our groundbreaking 9S Full Worry-Free Service represents the pinnacle of customer care. This comprehensive service program is meticulously designed to offer unparalleled support and peace of mind, ensuring that customers around the globe can experience seamless, secure, and uninterrupted use of our Pressure Sewerage Pipe for Agriculture and Farms with Bell Joint Connection. No matter your location, Donghong stands by you with a promise of reliability and superior service.
| 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 proudly carry CE, BV, ISO, and WARS certifications, surpassing all standard requirements. Should you have specific national standards in mind, simply inform us, and we will verify or conduct the necessary tests to ensure compliance.
2. What kind of services do you offer?
As a leading manufacturing factory, we provide a comprehensive range of pipe products and fittings, complete with meticulous packaging and reliable shipping services. Leveraging our expertise as a professional consulting company, we deliver insightful project consultancy, innovative pipe system solutions, and expert design recommendations. Furthermore, our engineering prowess enables us to offer top-tier pipeline contractor services, efficient pipe repair solutions, and valuable maintenance guidance at no additional cost.
3. Do you support OEM/ODM services?
Absolutely! We offer extensive customization options in materials, specifications, logos, packaging, connection methods, and more. Our seasoned team is adept at crafting bespoke solutions tailored to your unique project requirements, backed by a distinguished history of successful implementations.
4. What are your terms of payment?
We accept T/T or L/C at sight as our payment terms.
5. How can you guarantee the quality of the goods you offer?
We wholeheartedly invite all customers to visit our facility and inspect our products in person. To ensure your complete satisfaction, we are prepared to perform stringent tests according to your specifications prior to order placement. Additionally, we can provide sample dispatches ahead of bulk production, allowing you to conduct your own evaluations and confirm product quality.
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