AdapTEC adapter ring creates a stable connection between an old manhole cone with no anti-displacement securement and new-pattern compensation rings.
Sewer manholes in roads have a lot to put up with. They are exposed not only to vertical, but also to horizontal loads. For this reason, newer types of manhole cover are secured against lateral displacement. However, older types of manhole, with no such security, are still predominantly found in roads. For these, there is now an adapter ring available that is claimed to prevent displacement. IKT has tested this new solution.