Primus Line® is installed trenchless. That means: No more construction pits that are hundreds of metres or several kilometres long.
Two pits or existing chambers are absolutely sufficient for the rehabilitation of pressure pipelines. Learn here how a trenchless rehabilitation works with Primus Line®.
Small construction pits or existing chambers: That is all the space necessary for the installation of Primus Line®. Only two are required for every rehabilitation section. If necessary – junctions for example – additional pits are possible.
Rope winches are placed at the start and end pit for further work steps.
Inspection of the host pipe
Deposits are no rarity in old pipelines. A clear picture of the condition in the rehabilitation section is immensely important for a successful installation of Primus Line®.
Visual inspection systems with high-resolution cameras and a large movement range provide not only detailed recordings of the inside of the pipe, which are essential for a precise preparation of the pipe cleaning measure. They also pull through a pilot rope for the winches placed at start and end pit.
Assembly of the M-Connector
The M-Connectors by Primus Line consist of a bushing and a core. With the M-Connector a pull-proof unit out of liner and connector is established by hydraulically pressing the core into the bushing.
Screwed to a flange on the host pipe a leak-free pull-proof connection between is established that forms a closed annulus.
Assembly of the R-Connector
The R-Connectors by Primus Line consist of a core and a bushing.
With the R-Connectors the core is first fitted into the bushing with an anti-friction agent. The bushing has a malleable steel jacket inside that is pushed onto the liner and into an indentation on the core by a two-component resin. The result is a pull-proof unit of liner and connector.
A leak-free pull-proof connection with the host pipe can be established with a flange or welding solution.