
Large-diameter ductile iron pipes are mainly used in major national water conservancy and livelihood projects such as large-scale water diversion projects, long-distance water transmission projects, and urban infrastructure projects. They provide high-quality pipe materials for national water network construction and regional water network interconnection, enhancing water resource regulation and supply capabilities, and ensuring water supply security. So, what unique performance advantages do they possess in long-distance water diversion projects? Let's discuss this in detail below:
Ductile iron pipes cover a wide range of diameters, meeting the needs of various diameters in long-distance water transmission projects. In long-distance water transmission projects, the main diameter range used is DN1000-DN2600mm. Most water transmission projects use pipe diameters of DN1400-DN2400mm.


The corrosion protection of ductile iron pipes is completed entirely in the factory. The inner wall is coated with centrifugally coated cement mortar, and the outer wall is sprayed with a zinc coating of 130 grams per square meter (K-grade pipe) or 200 grams per square meter (C-grade pipe). The final finishing layer is 70-micron asphalt paint.
Ductile iron pipes utilize flexible socket joints. In long-distance water transmission projects, the joints of ductile iron pipes can adapt to a certain angle of deflection. The entire pipeline can be deflected by the deflection of each individual pipe, and it can also accommodate a certain℃of foundation settlement.


For long-distance water transmission projects with long distances and large scales, where pipelines must minimize accidents such as pipe bursts and leaks during operation, the excellent internal and external corrosion resistance, long service life, low leakage rate of flexible joints, and low maintenance costs of ductile iron pipes better meet the diverse needs of water transmission projects. Therefore, the application of ductile iron pipes in this field continues to grow rapidly.
Shanxi Jintai Hongye Casting & Forging Machinery Co., Ltd. is located in Shanxi Province, China. Our primary business operations include ductile iron pipe fittings, pipeline systems, various valves, and manhole cover series products. For detailed product information or to discuss cooperation opportunities, please feel free to contact us at any time:

