FRPP bellows Features ● FRPP Bellows: higher contrast PE corrugated pipe ring stiffness, greater reliability ● strong against external shocks: When to external impact, recovery superior performance, in the case of ground subsidence will not rupture. ● excellent chemical resistance: acid, alkali, corrosion resistance. ● superior wear resistance: more than steel, cast iron pipes, cement pipes and wear resistance. ● fluid resistance: wall smooth, fluid resistance of the drainage speed, large capacity through the water. ● stable physical properties: anti-aging, when the surface is not affected by direct sunlight. ● Light weight: Light weight, transport, easy connection, short construction period, easy management and maintenance. ● environmental impact: non-toxic, harmless to land, can be recycled. ● steel reinforced bellows product superiority FRPP parameters Project HDPE double wall corrugated pipe spiral steel bellows PE ratio PE double wall corrugated pipe bellows enhanced PE spiral shock resistance (TIR /%) ≤10 ≤10 flexible ring no rebound bending, no rupture, two walls no excuse no rupture, two walls no excuse oven test no bubbles, no delamination, no crack no bubbles, no cracking creep rate ≤10 ≤2 peel strength - ≥70 seam tensile strength / N -> 1460 Executive Standard GB / T19472.1-2004 CJ / T225-2006