Liaocheng Shan Hong Pipe Industry Co., Ltd. regularly sells ductile iron pipes, including GB standard ductile iron pipes, K9 ductile iron pipes, centrifugal ductile iron pipes, ductile iron pipe fittings, and ductile iron manhole covers. We offer a range of ductile iron pipes from DN80 to DN2600, centrifugal ductile iron pipes, flexible cast iron pipes, and matching fittings. Our ductile iron pipes comply with the national standard GB/T 13295-2013 for ductile iron pipes, ensuring excellent mechanical properties and a long service life. Our products have passed ISO9001 quality management system certification, environmental management system certification, and health management system certification, establishing a comprehensive management system. Our products come in T, S, and W types of interfaces and feature various internal and external anti-corrosion technologies suitable for acidic and alkaline environments (including cement lining, epoxy asphalt, and epoxy resin). We adopt the new standard GB/T 13295-2008 for "Ductile Iron Pipes, Fittings, and Accessories for Water and Gas Pipelines." Our products are not only used in potable water supply, fire protection projects, garden communities, and wastewater treatment but also widely applied in urban construction networks, petrochemical industries, metallurgy, oil transportation, and other fluid conveyance.

Ductile iron pipe fittings comply with the standard GB13295-2013, selling ductile iron pipes with sizes ranging from DN80 to DN1000; the fittings are produced using advanced lost foam casting technology, offering superior qualities such as high strength, corrosion resistance, long service life, smooth surface, and stable performance, making them the ideal replacement for traditional pipe fittings.

Centrifugal cast iron pipes utilize advanced domestic and international water-cooled casting equipment and technology. They have passed the ISO9001 quality system certification and are produced in strict accordance with ISO2531 standards, ensuring each pipe has excellent mechanical properties and a long service life. The centrifugal cast iron pipes and their accessories offered by our company feature high strength, high elongation, smooth appearance, and corrosion resistance. These pipes are primarily used for main fluid pressure pipelines in urban water supply, potable water, city networks, fire protection projects, garden communities, and other applications. Available specifications range from DN100 to DN2600.

Our ductile iron pipes are capable of withstanding high internal pressures during hydrostatic testing. They also exhibit excellent resistance to external pressure, which reduces the requirements for pipe bedding and protective coating, making the pipeline installation both economical and reliable. Additionally, measures such as zinc spraying, asphalt painting, and cement lining ensure the internal and external corrosion resistance of the pipes. The zinc spraying quality of the ductile iron pipes meets the ISO 8179 standard, with a minimum zinc coating of 130g per square meter, and the asphalt paint thickness is not less than 70μm. The cement mortar lining quality complies with the ISO 4179 specification, ensuring the mortar is dense, smooth, and has strong adhesion.

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