corrugated pipes or double-walled pipes are made of polyethylene, which makes them have better properties than other pipes.
This pipe is used for urban and rural sewage because corrugated pipes, because they can withstand a lot of pressure, also withstand underground pressure.
Features of corrugated pipe
Resistant to erosion and decay caused by chemicals,
Strong against high pressure,
High flexibility and longevity,
Lightweight and easy to install,
Other uses of these pipes can be used for water drainage, edema sewage pipes, carrying alkaline and acidic materials, industrial water and …
Carogit pipes have annular resistance, which is called sn 4 or sn 8 for short, which indicates the annular resistance of carogit pipes of polyethylene type.
Two simple examples to know this
sn 4 = 16 kN / m2
sn 8 = 31.5 kN / m2 soil