hdpe roll pipe Features: 1.Material: high Density Polyethylene 2.sizes: 20mm to 800mm 3.Connection: socket fusion, butt fusion joint, electro fusion joint, flanged joint 4.Certification: ISO9001,ISO14001 5.Applications: Water supply, industrial liquids transportation and sewage treatment Properties 1.Specific Gravity, g/cm3, 20(C): 0.941-0.965 2.Longitudinal Reversion, % (110(C)): =20 4.Extension Rate at Break. %: >=350 5.Hydraulic Pressure Test: 1)20(C), Hoop Stress is 12.4 Mpa, 100h: No Failure. 2)80(C), Hoop Stress is 5.5Mpa, 165h: No Failure. 3)80(C), Hoop Stress is 5.0Mpa, 1000h: No Failure. Advantages: 1.Non-toxic: No heavy metal additives would not be covered with dirt or contaminated by bacterium. 2.Corrosion Resistant: Resist chemical matters or electron chemical corrosion 3.Lower installation Costs: light weight and ease of installation can reduce installation costs by as much as 50% over metal piping system. 4.Higher Flow Capacity: smooth interior walls result in lower pressure loss and higher volume than metal pipe 5.Longevity: More than 50 years under proper use 6.Recycled and Environment-friendly Application: 1.Municipal water supply 2.Commercial & Residential water supply 3.Industrial liquids transportation 4.Sewage treatment.