Large Diameter HDPE double wall corrugated pipe with high density polyethylene as raw material, a new type of light pipe with light weight, high pressure, good toughness, 
 Construction of fast and long life, its excellent design of wall structure, and other structures of the pipe compared to the cost greatly reduced. And because the connected party 
 Then, reliable, widely used at home and abroad. Large number of alternative concrete pipe and cast iron pipe. 



 The use of numerical control technology, automatic production line, manual labor intensity is low; extruder temperature control precision is high, up to ± 1 ℃; replace the molding equipment, 
 Can produce a very wide range of pipe size, and easy to replace the mold; cooling, heating, lubrication system, fully automated; module to switch power is small, not 
 Will be boring car phenomenon; using vacuum shape, size and stability in diameter; product thickness according to user needs be adjusted within a certain range. 



 National standard, GB / T 18742.1-2004 



 Co-extruded polyethylene outer layer extruder}> machine molding> cool - dry - Traction - Cutting - stacker - check> storage 
 Inner layer of polyethylene 



 HDPE large caliber double wall corrugated pipe features 
 1, both rigid, that has sufficient mechanical properties and rigidity, while both excellent flexibility, but also has great compression strength and good; 
 Impact resistance of the harsh environment of underground and ground adaptability. 
 2, and cement pipe, cast iron tubes, double-wall corrugated polyethylene pipe, light weight, cheap; 
 3, chemical resistance, and can withstand the impact of soil pH, adapted for special occasions; 
 4, smooth wall, the liquid in the pipe to reduce flow resistance and further increase transmission capacity; 
 5, the outer wall corrugated pipe shapes to enhance the capacity of the soil, to facilitate continuous laying on the ground in uneven; 
 6, wear resistance, abrasion resistance; 
 7, wide temperature range, -60 ℃ environment in the pipe will not be cracking and leaking expansion; 
 8, with good weather resistance and long-term thermal stability; 
 9, socket interface, dual-ring style, convenient construction and good sealing, easy handling, low labor intensity, fast construction schedule; 
 10, polyethylene materials containing only carbon, hydrogen two elements, environmentally friendly, green 



 1, municipal water works, sewage; 
 2, industrial wastewater, residential drainage works; 
 3, Salt Brine, fishing water; 
 4, mine ventilation, drainage works; 
 5, agriculture, forestry, irrigation and drainage; 
 6, cutting into the tube projects into the wall (hole double-wall corrugated pipe); 
 7, water conservancy projects; 
 8, low-voltage cable and communication cable sheathing; 
 9, highways embedded pipes; 

 Specifications: 
 DN225, DN300, DN400, DN500, DN600, DN800 carve more than two of each size class, density of S1 steel ring is 4KN/m2, S2 is 8KN/m2.