How do ductile iron pipes prevent rust? (Shandong Xinyuantai Pipe)
Ductile iron pipes are widely used in various applications, not only for water supply but also for natural gas distribution. When it comes to transporting natural gas, they perform exceptionally well, allowing people to use both water and gas with confidence. These pipes play a crucial role in ensuring our daily water needs are met, making them an essential part of modern infrastructure.
Many people wonder whether ductile iron pipes are prone to rust. The answer lies in their corrosion resistance. Whether or not they rust depends largely on the quality of the anti-corrosion treatment applied during manufacturing. High-quality ductile iron pipes undergo a series of protective processes. The inner surface is typically coated with a cement lining, which prevents internal corrosion and ensures long-term durability. On the outer surface, galvanization (zinc spray) is commonly used, along with bituminous paint or epoxy coatings, providing additional protection against moisture and environmental elements.
These treatments are vital because the outer walls of the pipes are often exposed to soil, which can be humid and rich in oxygen—ideal conditions for rust formation. With proper anti-corrosion measures in place, ductile iron pipes can last over 100 years, making them a reliable choice for long-term use. While the inner walls may have flowing water, oxygen levels are lower there, so corrosion is less likely compared to the outside. However, the cement lining remains essential for maintaining the integrity of the pipe from the inside out.
In conclusion, the key to preventing rust in ductile iron pipes is proper anti-corrosion treatment. Choosing high-quality pipes from reputable manufacturers like Shandong Xinyuantai ensures that these pipes will serve efficiently and safely for many years.
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