Dci pipe and fittings The production capacity of ductile iron pipes (dn80-2600) per year can reach fifteen thousands tons. The standard are according to iso 2531. Bs 4772. Bsen 545, en598. We can also produce ductile iron fittings(dn80-2600) in accordance with iso 2531. Bs 4772. En 545. Awwa c110, c153(8inch-56inch) fitting socket is push-on joint. Flange joints are dimensioned and drilled according to iso 2531, pn 10, pn 16 and pn 25. All the fittings are class 12 except the tees, which are class k14. The external protection of all the fittings is by zinc and bitumen /epoxy painting according to iso 8179 and the internal protection of all the fittings is by cement mortar acc. To iso 4179. We also produce and weld various kinds of flange pipes according to the requirement of the customer. Dn80-2600mm