Polyvinyl Chloride, commonly abbreviated PVC, is a widely used thermoplastic. Unplasticized PVC(UPvC) is rigid type of PVC means without the use of plasticizing agents. PVC has long been considered to be one of the most durable polymers for both underground and aboveground piping systems and is commonly used for a variety of pressure and gravity applications including potable water distribution, irrigation systems and sewer industries. Its light weight, high strength and low reactivity make it particularly well-suited to these purposes.