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In recent times throughout the world, the world, the importance of plastics pipes in the design of piping systems for public and industrial water supply and sewage transport has gradually increased. This trend reflects a growing confidence in plastics as a piping material, perhaps due mainly to greater worldwide knowledge and experience for this field. The plastics are mostly manufactured on a petrochemical basis with petroleum as the raw material.Polypropylene Pipes (PP) pipes and PPR pipes are manufactured by extrusion in a similar way as PE pipes. Polyvinyl Chloride Pipeline (PVC) and PPR pipes can be really manufactured with or without plasticizes.