Our robust PVC pressure systems are expertly designed to cater to a multitude of essential applications, including drinking water supply, recycled water systems, sewage handling, and gas distribution. Crafted for versatility and reliability, these systems ensure optimal performance across various utilities.
At DHPI, we take immense pride in our comprehensive array of premium PVC pressure pipes and fittings. Our commitment to quality is unwavering, as we utilize only the finest raw materials and adhere to best industry practices to deliver products that stand the test of time.
PVC-UH represents a significant advancement over traditional PVC-U, offering a spectrum of colors tailored for specific applications. Primarily utilized for water mains, water supply, recycled water systems, irrigation, and pressure sewerage, these pipes come in standard 6m effective lengths with spigot and socket ends for Rubber Ring Jointing (RRJ), ensuring easy and secure installation.
Introducing our groundbreaking pressure sewage drainage pipe, featuring an innovative built-in integrated steel skeleton sealing connection structure. This design ensures quick and hassle-free installation, guaranteeing superior installation quality and connection tightness. The result is a zero-leakage pipe network with high strength, addressing and resolving pipeline joint leakage issues effectively.
Our high-performance PVC-UH water supply pipe boasts an integrally formed steel skeleton for an impeccable sealing connection, ensuring robust connection reliability and tightness. The advanced design significantly enhances the pipe's mechanical properties, offering high strength, high pressure, and exceptional ring stiffness. Ideal for outdoor buried installations and pipe galleries, these pipes are engineered for demanding conditions.
Exceptional Environmental Adaptability: Our pipelines are designed with enhanced toughness, allowing them to effectively withstand point loads and uneven foundation settlement. They adapt seamlessly to non-standard construction scenarios and challenging working conditions, ensuring reliable performance.
Superior Chemical Corrosion Resistance: Our pipelines can withstand corrosion from a diverse array of media, ensuring that substances in the soil do not compromise the pipeline. With a life expectancy of ≥50 years, these pipes promise long-term reliability.
Outstanding Hydraulic Performance: Our state-of-the-art design effectively absorbs impact energy from water pressure fluctuations, improving the pipeline's resilience to water hammer. This results in reduced operating risks, enhanced water supply efficiency, and lowered 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: Designed for 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, the connection is via elastic socket sealing rings. The 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) proudly stands headquartered in the historic city of Qufu, China, the revered hometown of Confucius. Renowned as an engineering pipeline manufacturer, pipeline engineering service provider, and comprehensive pipeline engineering general contractor, our expertise spans four distinct categories of functional and customized pipelines: specialized pipelines for rainwater and sewage diversion, municipal areas, industrial and mining sectors, and national key engineering projects. We have meticulously crafted an extensive industrial ecosystem involving design institutes, financial institutions, port logistics, construction units, and a robust network of upstream and downstream enterprises. Our unwavering commitment is to become a global leader in providing comprehensive pipeline system solutions, revolutionizing human life with intelligent pipelines and ensuring the perpetual safety of pipeline transportation.
On November 6, 2017, Donghong Pipe Industry achieved a significant milestone by being listed on the Shanghai Stock Exchange, proudly becoming the first company in the plastic pipe industry to be listed on the main board!
The Donghong Pipe Industry Testing Center has been honored with the prestigious national CNAS certification by the National Standards and Accreditation Committee, solidifying our commitment to excellence.
Our state-of-the-art factory boasts a large storage bin, a fully automatic centralized mixing, blending, and transfer system. This advanced setup ensures closed management of raw materials from production to extruder entry, efficiently preventing secondary contamination and safeguarding product quality at every step.
Donghong has established strategic partnerships with over five 5A-level logistics companies, bringing decades of transportation expertise to the table. By seamlessly integrating automobile transport, railway systems, and port shipping logistics, we guarantee exceptional service regardless of weather conditions or remote locations. Our robust transportation strategy ensures that every shipment reaches the customer site swiftly and efficiently, providing unparalleled reliability and speed.
Donghong continuously refines its service excellence, establishing a comprehensive 9S full worry-free service system. This meticulous framework ensures that customers worldwide can rely on Donghong products with utmost confidence and safety.
| 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, all of which indicate performance exceeding standard requirements. Please let us know the national standard you require, and we will verify or test it accordingly for you.
2. What kind of services do you offer?
As a manufacturing factory, we provide high-quality pipe products, pipe fittings, packaging, and shipping services. As a professional consulting company, we offer project consulting advice, comprehensive pipe system solutions, and design suggestions. Additionally, as an engineering-focused enterprise, we provide pipeline contracting services, pipe repair services, and free maintenance guidance.
3. Do you support OEM/ODM services?
Yes, we offer extensive customization in materials, specifications, logos, packaging, connection methods, and more. Our professional team can also provide tailored solutions for your specific projects, with numerous successful cases to back our expertise.
4. What are your terms of payment?
We accept T/T or L/C at sight.
5. How do you guarantee the quality of the goods you offer?
We warmly invite all customers to visit our company and inspect our goods firsthand. We can also conduct rigorous testing as per customer requirements before order placement. Furthermore, before mass production, we can dispatch samples for customers to conduct their own tests to ensure product quality.
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