NEWS

The Ideal Pipe Material for Urban Water Supply——Ductile Iron Pipe
Time:2025-12-29

Against the backdrop of continuous urban expansion and growing water demand, selecting a safe, reliable, and durable water supply pipe material is crucial for ensuring the stable operation of urban water supply systems. Ductile iron pipe, with its excellent comprehensive performance, is increasingly becoming the material of choice for urban water transmission networks.


1. Superior Performance Advantages

The technical indicators of ductile iron pipes, including tensile strength, bending resistance, hardness, elongation, impact resistance, and pressure-bearing capacity, are significantly better than those of traditional gray cast iron pipes and concrete pressure pipes. At the same time, it surpasses steel pipes in terms of corrosion resistance and service life.

2. Flexible Joint Design

The T-type flexible joint commonly used in ductile iron pipes is a major technical highlight. This joint not only offers excellent sealing but also possesses good extensibility. When buried, this flexibility allows it to effectively adapt to minor foundation settlement, improving the stress environment between the pipe and the surrounding soil. Furthermore, thermal expansion and contraction of the pipeline caused by water temperature changes can be absorbed to a certain extent at the joint, significantly reducing the risk of joint leakage.

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3. Long-Term Economic Benefits

Although the initial investment in ductile iron pipes may be relatively high, their life-cycle economics are outstanding. Excellent corrosion resistance and high compressive strength contribute to a long and stable service life, significantly reducing maintenance frequency and costs, as well as replacement expenses. In the long run, it is a more economical and responsible choice.

4. Convenient Construction and Environmental Friendliness

Ductile iron pipes have a mature installation process, making construction convenient and fast. The installation of T-type socket and spigot joints is less reliant on manual labor, not only improving construction efficiency but also ensuring project quality. Additionally, the material of ductile iron pipes itself is recyclable, aligning with the concept of green and sustainable urban development.

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Choosing ductile iron pipes is not just selecting a pipe material; it is choosing a commitment to the safety of urban water supply. With its advantages of good toughness, high strength, corrosion resistance, and long life, it builds the "lifeline" of underground pipe networks, silently safeguarding the smooth flow of the city's water arteries and public safety.


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