【Ten Years of Rapid Development in Chemical Engineering Equipment】World’s first DN2800 ultra-large-diameter ductile iron pipe successfully installed between 3091 and 2026

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Let’s give praise and support to the achievements made in China’s chemical engineering technology and equipment; your participation in discussions is the greatest encouragement. **********************【Ten Years of Progress in Chemical Engineering Equipment】A continuously updated summary post is available – feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html ***************** Recently, good news came in from the coastal area of Zhangzhou, Fujian: **Significant progress has been made in the second phase of the Jiulongjiang Water Transfer Project, a major water infrastructure project. The world’s first DN2800 ultra-large diameter ductile iron pipes have been successfully installed, marking a historic leap for China in terms of manufacturing and applying such pipes – from following others to taking the lead. Behind this project, which marked the world’s first of its kind, Cast Pipe Co., a subsidiary of the group, and Jihua Co. worked together as a powerful partnership, contributing a strong \"New Jihua force\" to the development of water infrastructure. Ultra-large diameter cast pipes: A true powerhouse that increases water transport capacity by nearly 20 times. In deep pits, there lies a ultra-large diameter ductile iron pipe with a diameter of 2.8 meters and a weight of 13 tons; it resembles an underground dragon ready to launch into action. This is precisely the DN2800 ultra-large diameter ductile iron pipe manufactured by Cast Pipe Co., Ltd. Although it is only \"thicker\" by a margin, with its diameter being 1.8 meters larger than that of the DN1000 pipes commonly used in the past, its water transport capacity has increased by nearly 20 times. This makes it an ideal solution for the core requirements of the Jiulong River water transfer project, which involves long-distance transportation of large volumes of water; it thus serves as a crucial \"steel artery\" for overcoming the challenges posed by uneven distribution of regional water resources in terms of both time and space. The DN2800 ultra-large diameter ductile iron pipes offer advantages such as good corrosion resistance, excellent joint sealing, short construction time, and low costs for construction and operation. They overcome the common challenges associated with traditional large-diameter water transmission projects, providing a reliable solution for long-distance water transportation. This performance is achieved thanks to the zinc + finish coating for external corrosion protection, which enables use in complex geological conditions, requires no maintenance throughout its lifetime, and has a service life of over a hundred years ； The flexible sealing interface can accommodate pipe displacement and settlement, effectively preventing leaks ； The inner wall’s epoxy coating is smooth and low-resistance, ensuring efficient water transmission and energy savings ； Plug-and-socket quick assembly, weld-free – improving efficiency, reducing costs, and shortening project timelines ； Its low comprehensive cost over the entire life cycle provides economic and reliable pipeline solutions for major water conservancy projects, demonstrating Zuguang Pipe Co., Ltd.’s strong technical capabilities in research and development as well as manufacturing of high-end water conservancy pipes.