Most of the old Cast Iron pipes are cast vertically but this type has been largely superseded by spun iron type manufactured up to a diameter of 900 mm. Though the cast iron pipe has the disadvantages of heavy weight, and consequent high transport costs, short length, leading to higher laying and jointing cost, low tensile strength, liability to defect of inner surface, it is widely used because of its good lasting qualities. There are many examples of cast iron mains in this country which continue to give satisfactory services even after a century of use. Cast of Iron pipes and fittings are being made in this country for more than a century. The production capacity exceeds more than 3,00,000 tons per annum. Due to its strength and corrosion resistance, C.I. pipes can be used in soils and for water of slightly aggressive character. They are well suited for pressure mains and laterals where tapping are made for house connections. It is preferable to have coating inside and outside of the pipe. Pipe flanges are protruding rims, edges, ribs, or collars used to make a connection between two pipes or between a pipe and any type of fitting or equipment component. Pipe flanges are used for dismantling piping systems, temporary or mobile installations, transitions between dissimilar materials, and connections in environments not conducive to solvent cementing. Uses & Applications Cast iron soil pipe and fittings are used primarily in building construction for sanitary and storm drain, waste, and vent piping applications. The product is installed in residential construction, hospitals, schools, and in commercial and industrial structures. For this reason, the pattern of cast iron soil pipe shipments and sales is directly related to the pattern of building/construction activity. In buildings, the principal assembly of this piping is installed within the partitions and serves the tub, lavatory, and water closet fixtures. The main line in this assembly is the cast iron soil stack, which runs vertically from the building drain up through the structure and through the roof. Waste lines are connected to this main soil stack, and vent lines may also be tied in at a point above the highest fixture. Market Survey India needs to grow faster than the conservative assumption at a GDP close to 10 percent a year. Cities grow rapidly, there will be rapid population growth and industry specific developments relating to massive usage of ductile iron pipes. The real life expectancy of cast iron pipe is unknown, but is usually estimated at 100 years or more. The oldest operating cast iron main is that at Versailles, France, installed in 1664. In United States and in Canada there are more than 500 members of the Cast Iron Pipe Century Club, a unique organization composed of cities or utilities have cast iron pipe still in service after 100 years. In India, Electro steel Castings Limited (ECL) was the first to set up a Ductile Iron Pipe Plant. Ductile Iron Pipe, a product of advanced metallurgy, offers unique properties for conveying water under pressure, and other piping uses. ?