Difference between Hdpe and Pvc Pipes 1.Polyvinyl chloride (PVC) is a cheap and durable vinyl polymer used in construction projects while high density polyethylene (HDPE) is a polyethylene thermoplastic that is made from petroleum. 2.Polyvinyl chloride is the third most widely used plastic while polyethylene of which HDPE is a type is the most widely used plastic. 3.PVC is amorphous while HDPE is semi-crystalline. 4.Both are strong and durable, but their strengths vary and they have different applications. PVC is heavier and stronger while HDPE is harder and more abrasion and heat resistant. 5.HDPE pipes are found to be able to dampen and absorb shock waves minimizing surges that can affect the system while PVC cannot. 6.HDPE is more suitable for lower pressure installations while PVC is more suitable for direct burial and trench less installations. Berlia pipes - Manufacturers and Suppliers of Hdpe Duct Pipes in Guwahati , Assam , India. www.berliapipes.com