Centrifugally Cast Ductile Iron Restrained Joint Socket and Spigot Pipe

Centrifugally Cast Ductile Iron Pipe is a kind of pipe made from spherical graphite cast iron by centrifugal spinning process. 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!

The Restrained Joint on this kind of fittings can prevent separation of the assembled joint, and permits more larger angular deflection both during and after installation and which can accept a light offset of the centerline.

coating:

a)External coatings:
-Metallic zinc (130-400g/m2)
-Zn-Al Alloy 85/15
-Black Bitumen coating
-Red or Blue Epoxy coating

b)Internal coating (linings):
-Cement lining
-Seal coat
-PU coat

c)Coating of the joint area:
- Epoxy coating;
- Polyurethane coating.