Covered wall pipes have a smooth interior and exterior, as well as an internal profile with one or more layers. This profile is used for extremely high loads and large diameters because of its extremely long-term stiffness. It is also excellent for manholes and fitting fabrication.
- For Medium Ring Stiffness: Class SN6, SN8, SN10, SN12, SN13
- Diameter sizes above 1000mm – 2000mm
- Pressurized application for diameter size 1000mm - 3500mm
- Class: 1 Bar, 2 Bar, 3 Bar, 4 Bar