This project is the upgrading project of water pipeline in Liaocheng City, Shandong Province, the water pipeline is lined with HDPE pipe to repair, the original water pipeline material is prestressed reinforced concrete pipe, pipe diameter DN1000, a total of two, the length of a single about 7000 meters, lined with pipe specification DN998 * 20. HDPE pipe lining can not only meet the requirements of pipeline corrosion, leakage plugging, and pressure, but also can improve water quality, improve the pipeline capacity, safety, energy saving, environmental protection, and so on. It can improve the water quality, improve the pipeline transportation capacity, safety, energy saving and environmental protection.
