HDPE (High Density Polyethylene) pipes are flexible thermoplastic pipes, made from high-grade raw materials such as PE 63, PE 80, PE 100 and others. These materials are alternatives to Cast Iron (CI) & Galvanized Iron (GI) pipes. High impermeability and strong molecular structure of these pipes make them suitable for several end-use applications. HDPE pipes are almost inert & chemically inactive, which makes them suitable to transport drinking water, chemicals, hazardous wastes & gases, and sewage & wastewater. The uses of HDPE pipes in urban, industrial, and agricultural applications are increasing rapidly.