ISO 2531 EN 545 EN598 Ductile Iron Flanged Pipe with Cast-on or Screwed-on or Weld-on Flange

Ductile Iron Flanged Pipe with Weld-on Flange is a kind of pipe made from spherical graphite cast iron by centrifugal spinning process and weld on flanges. The pipes, which can convey many fluid media such as water, oil and gas, are widely used in various pipeline projects for metallurgy, mine, water conservancy, petroleum and urban public service utility.

Possessing high strength, good toughness as steel and better corrosion resistance than steel, the ductile iron pipe is the ideal substitute for gray cast iron pipe and common steel pipe. In addition, the DI pipes are produced with good straightness, even wall thickness, high dimension accuracy, smooth surface finishing and remarkable mechanical properties, plus with firmly sticking internal & external coating layer. Flexible Push-in joint and rubber gasket are used resulting in convenient installation of pipelines.

By combining amazing ductility and high tensile strength to the well established corrosion resistance qualities of ductile iron, this easily handled pipe can be readily tapped, drilled or welded. Ductile Iron Pipes offer unsurpassed benefits for applications in water supply, sewerage and gas mains by their reputation by actual performance!

Own the advanced and competed set of equipments, such as the medium frequency induction furnace, high-speed centrifugal casting machine, gas-cooling annealing, and automatic zinc spraying, hydraulic pressure testing, and lining with cement lines, SYI has an annual production capacity of 200000 tons since DN80 to DN2000, and it is still developing all the time.

Strict process and operating regulations together with perfect quality assurance system making every production step under control. All the products are subject to tests and inspections including composition analysis, metallographic examination, dimension & surface finish inspection, ring test, tensile test, hardness test, hydrostatic test, lining and coating test to be sure that the products meet the requirements of the standards.