SGK HDPE spiral pipes for sewer and drainage systems
BRIEF DESCRIPTION
HDPE structured wall pipes made through spiral winding technology which find application in non-pressure underground sewerage and drainage systems. Other possible applications are for: culverts (road and railway embankments crossing) syphons, under low pressure operating networks and for construction of inspection manholes, water storage and waste wastewater treatments. They consist of a smooth inner surface for water flowing and a smooth or profiled outer one (in different shapes and sizes) that determines the ring stiffness. All pipe lengths are provided with an integrated junction socket and the respective spigot for the electrofusion or with grooves for the sealing gasket junction system. The diameters range (DN/ID) goes from 800 up to 2500 mm.
Ring stiffness:
| Standard EN 13476 | Standard DIN 16961 |
| SN2 (2 kN/m2) | Class 3 (SR24 8 kN/m2) |
| SN4 (4 kN/m2) | Class 4 (SR24 16 kN/m2) |
| SN8 (8 kN/m2) | Class 5 (SR24 31,5 kN/m2) |
| SN16 (16 kN/m2) | Class 7 (SR24 125 kN/m2) |
The two classifications of the ring stiffness according to the two distinct standards are not correlated, as they are data obtained through tests with different methods and times.
MAIN FEATURES
Wide range of diameters
Smooth or profiled outer surface
Wide range: of structured profiles à moment of inertia àring stiffness
Integrated socket connections with the electrofusion technology
High reliability of connections tightness
Socket and gasket connection system available
Lightweight and easy to install
High chemical and abrasion resistance
Inert to stray currents
Color availability: entirely black or blue inside/black outside
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