High Strength HDPE Corrugated Pipe Flameproof Waterproof Double Wall Sewer Pipe
Hdpe Corrugated Sewer Drainage Pipes For Cable Protection
Product Profile
Item: Hdpe Corrugated Sewer Drainage Pipes for Cable Protection
Model: DN 200-DN800MM
Brand: SENPU
Product Thickness:1.7-4.5mm
Manufacture Standard:GB/T32439-2015
Certificate: CE, WRAS, IAPMO R&T.
Operate Temperature:e range:-60℃~60℃
Supply Ability:10000 Meter/Meters per Day
Packaging Details:6m/package,Wooden packaging
Port:Shanghai/Tianjin/Qingdao Port
Lead Time:5-10 working days
Working Pressure Level for DWC Pipe
In the double-wall bellows, SN represents ring stiffness, SN4 represents 4 KN/m2, and SN8 represents 8 KN/m2. This is a value for evaluating ring stiffness, and also a grade division of pipe material, representing the force it bears. That means the external pressure is greater than or equal to 4 or 8 kn per square meter. There are two ways to represent the exchange stiffness. One is that S1 and S2 represent level 4 and level 8 respectively, and the other is that SN4 and SN8 represent level 4 and level 8 respectively
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