... Sizes: 200 to 800mm 3.Pressure Rating: 0.4MPa, 0.6MPa, 0.8MPa, 1.0MPa, HDPE double wall corrugated pipeHDPE density ... pipe has advantages of strong ring stiffness, light weight, high pressure resistance, good toughness, anticorrosion, anti-abrasion, convenient and low ... systemHigher Flow Capacity: smooth interior walls result in lower pressure loss and higher volume than metal pipeLongevity: more than ...