Hdpe siphon pipe Siphon rainwater drainage system is a new technology which is developed very fast in europe, american, japan, south-american, asia and africa countries. It is a more scientific and advanced technology, can be used on big construction building like factory, workshop, warehouse and public building. The inner drainage system has obviously advantages comparing with the traditional gravity current drainage system. Hdpe siphon pipe, hdpe drainage pipe, hdpe corrugated pipe, hdpe trenchless pipe, hdpe water supply pipe, hdpe gshp pipe, hdpe pipe fittings factory. Specification Straight series Nominal diameters16s25 Dn (mm)tolerance (mm)wall thickness (mm)pn (mpa)wall thickness (mm)pn (mpa) 32+0.33.01.3 40+0.43.01.1 50+0.53.00.8 63+0.63.00.7 75+0.73.00.5 90+0.83.50.5 110+0.84.20.5 125+0.94.80.5 160+1.06.20.5 200+1.16.20.47.70.5 250+1.37.80.49.60.5 315+1.59.80.412.10.5 Coil series Nominal diameters16 Length: m/roll Dn (mm)tolerance (mm)wall thickness (mm)pn (mpa) 32+1.43.01.350, 100, 200, 300, 500 40+1.53.01.1 50+1.63.00.850, 100, 200 63+1.73.00.750, 100 Properties Projectrequirement Longitudinal reversion(110) 3% no delamination, cracking and blistering Mfr (5kg, 190)/(g/10min)0.2 1.1 The mfr difference between the raw material particles should not exceed 0.2 Oxidation induction time (200/min) 20 Hydrostatic strength test (80, 165h, 4.6mpa)no broken, no leakage Ring stiffness (kn/m3) Only for the pipes with a bd representssr 4 Combustion toxicity index1 System composition The siphon drainage system is mainly composed of rainwater head, fastening systems, hdpe pipe and the corresponding design Software. Tengyuan can supply municipal engineering pipe, dredging engineering pipe, hdpe gas pipe, power engineering pipe, mining pipe and agriculture irrigation pipe, etc. Integrity is the foundation of us, as well as the guarantee for enterprise's sustainable development.