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2.Product characteristics
Strong corrosion resistance: the pipe is made from anti-corrosive PE material, so it will not be corroded by acid, alkali or oil content, etc. in sewage or waste water.
Strong resistance to external impacts: the product is a flexible pipe and will return to its original shape when it suffers from external impacts. And, its excellent performance ensures that it is not easy to be broken in low degree settlement.
Strong ageing resistance: the pipe, owning to properties of its base material, can be used for 50 years or longer at 20ºC. Therefore, the pipe has strong ageing resistance.
Good low temperature resistance: the pipe will not be damaged by freezing or leak water even under minus 60ºC.
Light weight: mass of the pipe is only 1/8 of the concrete pipe of the same specification and 2/3 of traditional spiral plastic structure pipe, so it can be transported and constructed conveniently without any large-scale construction equipment.
Easy connection: the connection modes are many and simple and can be easily and rapidly executed on site.
Easy construction and low cost: the pipe is characterized by light weight and easy connection and does not have high
requirements for excavation works. During urban water drainage engineering construction, it would save a lot of engineering time and cost.
Superior wear resistance: the smooth inner wall and low frictional coefficient of the pipe determine that its transport capacity of medium is high.
Good environment-friendly performance: the polyethylene itself is a non-toxic and recyclable material, so the pipe will not pollute the environment.
3. Range of application
Urban underground drainage and sewage pipes
Drainage and sewage pipes in factories and sewage treatment plants
Venting system pipes
Piping system for laying of electric/optical cable sheath
Seawater and rain water transportation pipes
Water gathering system and soakaway system
Agricultural irrigation pipes
Manufacturing of chemical process containers
No. | DN/ID | Average Min Inner Diameter (Dim.Min) | Min Inner Layer Thickness(E1.Min) | Min Lamination (Emin) | Max Screw Pitch(Pmax) | Min Steel Band Thickness (Tmin) | Main Anticorrosion Layer-Thickness(E2.min) |
1 | 300 | 294 | 2.5 | 4.0 | 55 | 0.4 | 2.5 |
2 | 400 | 392 | 3.0 | 4.5 | 65 | 0.4 | 2.5 |
3 | 500 | 490 | 3.5 | 5.0 | 75 | 0.5 | 3.0 |
4 | 600 | 588 | 4.0 | 6.0 | 85 | 0.5 | 3.0 |
5 | 700 | 673 | 4.0 | 6.0 | 110 | 0.5 | 3.5 |
6 | 800 | 785 | 4.5 | 6.5 | 120 | 0.7 | 3.5 |
7 | 900 | 885 | 5.0 | 7.0 | 135 | 0.7 | 3.5 |
8 | 1000 | 985 | 5.0 | 7.0 | 150 | 0.7 | 3.5 |
9 | 1100 | 1085 | 5.0 | 7.0 | 165 | 0.7 | 3.5 |
10 | 1200 | 1185 | 5.0 | 7.0 | 180 | 0.7 | 3.5 |
11 | 1300 | 1285 | 5.0 | 7.0 | 190 | 1.0 | 4.0 |
12 | 1400 | 1385 | 5.0 | 7.0 | 200 | 1.0 | 4.0 |
13 | 1500 | 1485 | 5.0 | 7.0 | 210 | 1.0 | 4.0 |
14 | 1600 | 1585 | 5.0 | 7.0 | 210 | 1.0 | 4.0 |
15 | 1800 | 1785 | 5.0 | 7.0 | 210 | 1.0 | 4.0 |
16 | 2000 | 1985 | 6.0 | 8.0 | 210 | 1.0 | 4.0 |
Physical-mechanical characteristic:
Items | Index | Testing Method | |
Ring stiffness | SN8 | ≥8 | GB/T9647-2003 |
SN12.5 | ≥12.5 | ||
SN16 | ≥16 | ||
Impact property | TIR≤10 | GB/T14152 | |
Peel strength(20°C±5°C)N/cm | ≥70 | refer to appendix A of CJ/T225-2006 | |
Ring flexibility | no fracture; double surfaces no falling apart | GB/T9647 | |
Oven test | non-stratified; drying crack | refer to 8.4.5 of CJ/T225-2006 | |
Tensile strength(N) of polyethylene connection interface | ≥1460 | GB/T8804 | |
Creep rate | ≤2 | GB/T8042 |
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