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Ductile cast iron pipe, also referred to as ductile iron pipe or DI pipe, is a specialized piping solution prominently used in water and wastewater systems. Engineered from cast iron with the inclusion of graphite nodules, this pipe boasts superior flexibility, enhanced strength, and remarkable durability compared to conventional cast iron pipes. Ductile cast iron pipes stand out for their exceptional resistance to corrosion, abrasion, and internal pressure, making them the ideal choice for transporting water over extensive distances and under high-pressure conditions. With outstanding mechanical properties and an impressive lifespan, ductile cast iron pipes ensure reliable performance for a wide range of infrastructure projects, including water distribution networks, sewer systems, and industrial pipelines.
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Mechanical Joint (MJ): This robust connection method utilizes a combination of a gland, gasket, and bolts/nuts to securely link two pipes. The gasket ensures a watertight seal, while the bolts and nuts firmly join the pipes, providing a reliable and durable connection for your water supply system.
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Push-On Joint: Effortless yet effective, this method involves inserting the spigot end of one pipe into the socket end of another. A strategically placed rubber gasket within the socket forms a secure seal, eliminating the need for additional materials or tools during installation, making it a quick and efficient solution.
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Flanged Joint: This traditional method employs flanges and bolts/nuts to connect pipes. The flanges, affixed to the pipe ends, are tightened together with bolts/nuts to compress a gasket between the flange faces, ensuring a reliable seal and a strong, enduring connection.
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Restrained Joint: Ideal for applications requiring resistance to movement or thrust forces, restrained joints incorporate additional components such as harnesses, rods, or restraints. These elements work together to secure the pipes firmly in place, providing steadfast stability and reliability.
1. Strength and Durability: Our ductile cast iron pipes boast exceptional tensile strength and deformation resistance, making them perfect for underground installations. They are designed to withstand significant external loads, ensuring a resilient and reliable water supply network.
2. Corrosion Resistance: Featuring superior internal linings and external coatings, our ductile cast iron pipes offer outstanding resistance to corrosion. This ensures an extended lifespan, reducing maintenance costs and ensuring long-term performance.
3. Flexibility: The inherent flexibility of our ductile cast iron pipes allows them to endure ground movements and settlement without fracturing or leaking, ensuring consistent and reliable performance even in challenging conditions.
4. Longevity: With meticulous installation and regular maintenance, our ductile cast iron pipes can last over a century. This longevity translates to unparalleled reliability and long-term savings for any water distribution system.
5. Flow Capacity: Engineered for efficiency, the smooth internal surface of our ductile cast iron pipes minimizes friction losses. This ensures consistent flow rates and optimal water distribution, enhancing the performance of your water supply system.
6. Environmental Sustainability: Our ductile cast iron pipes are crafted from recycled materials and are fully recyclable at the end of their service life. This commitment to sustainability makes them an environmentally responsible choice for modern infrastructure.
| Diameter (mm) |
DE(mm) |
THICKNESS OF WALL(mm) |
TOTAL WEIGHT(kg) |
| 80 |
98 |
6.0 |
6.0 |
6.0 |
77.0 |
| 100 |
118 |
6.0 |
6.0 |
6.0 |
95.0 |
| 125 |
144 |
6.0 |
6.0 |
6.0 |
121.0 |
| 150 |
170 |
6.0 |
6.0 |
6.0 |
144.0 |
| 200 |
222 |
6.0 |
6.3 |
6.4 |
194.0 |
| 300 |
326 |
6.4 |
7.2 |
8.0 |
357.0 |
| 350 |
378 |
6.8 |
7.7 |
8.5 |
441.0 |
| 400 |
429 |
72 |
8.1 |
9.0 |
532.0 |
| 450 |
480 |
7.6 |
8.6 |
9.5 |
632.0 |
| 500 |
532 |
8.0 |
9.0 |
10.0 |
736.0 |
| 600 |
635 |
8.8 |
9.9 |
11.0 |
971.0 |
| 700 |
738 |
9.6 |
10.8 |
12.0 |
1237.0 |
| 800 |
842 |
10.4 |
11.7 |
13.0 |
1537.0 |
| 900 |
945 |
11.2 |
12.6 |
14.0 |
1863.0 |
| 1000 |
1048 |
12.0 |
13.5 |
15.0 |
2221.0 |
Shandong Donghong Pipe Industry Co., Ltd. (stock code: 603856), affectionately known as Donghong Co., Ltd., is situated in the historic city of Qufu, the birthplace of Confucius. As a premier engineering pipeline manufacturer, service provider, and general contractor, we specialize in four key categories of functional and customized pipelines: rainwater and sewage diversion, municipal, industrial and mining, and national key engineering project pipelines. By fostering an industrial ecosystem that includes design institutes, financial institutions, port logistics, construction units, and both upstream and downstream enterprises, we are dedicated to becoming a global leader in comprehensive pipeline system solutions. Our mission is to revolutionize human life and ensure the constant safety of pipeline transportation through intelligent pipeline technology.
Donghong boasts an impressive team of over 200 R&D professionals and holds more than 100 patents. Leveraging national technology R&D platforms such as the National Enterprise Technology Center, National CNAS Laboratory, Academician Expert Workstation, and Post-doctoral Workstation, we are at the forefront of research in the digitalization, informatization, and intelligentization of pipeline engineering. Our innovative efforts drive the advancement of the engineering pipeline industry and support vital national strategic projects, including the South-to-North Water Diversion, Huangzhilin, Hanzhiwei, Beijing-New Zealand Expressway, One Belt, One Road, 'Two Clear and One Tip,' standardized farmland, urban and rural water supply integration, Liren gas, and centralized heat supply. Donghong is proud to contribute to projects that enhance the quality of life and national development.
1. Is your product meets the international standard ?
Our products have pass CE, BV, ISO and wars certificate, and all figures indicates higher than standard, you can feel free to let us know which national standard you required, we will check or test it for you.
2. What kind of service do you offer ?
As a manufacture fatory, we provide pipe products, pipe fittings, package and shipping; as a professional consulation company we provide project consulting advise, pipe system solutions and design suggestions; as an engineering focused enterprise , we also provide pipeline contractor service and pipe repair service, also can give free maintance guidance.
3. Do you support OEM/ODM service?
Yes, we offer customization in material, specification, logo, package , connection methods andothers. Meanwhile, our professional team can offer solution suggestion for your specified projects, we have successfull cases of that service.
4. What's your terms of payment?
T/T or L/C at sight.
5. How can you gurantee the goods you offered is qualified?
We warmly welcome all customers arrange the visit to our company and see our goods in sight, we can also provide strict test as per customer required before order. Meanwhile, before the bulk production, we can dispatch samples for customer to do their own tests to qualify the products.
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