System Primus Line®
Primus Line® is a trenchless technology for the rehabilitation of pressure pipelines for different media such as water, gas and oil. The process is based on a flexible high-pressure hose and a specially developed connection technique.
Due to its multi-layered structure and very thin wall thickness, the Primus Line hose provides both flexibility and ultra high strength material.
The inner layer of the hose can be selected for the specific media. The outer layer - regardless of medium - is made of wear-resistant PE. Seamless aramid fabric is between the inner and outer layers, functioning as a static load-bearing layer.
Primus Line® is produced in nominal diameters from DN 150 to DN 500.
The hose is inserted into the host pipe from small construction pits - thus avoiding large roadworks. Primus Line® is not attached to the host pipe and is self-supporting. An annulus remains between Primus Line® and the host pipe.
Via a specially developed high-pressure connector on each end, the Primus Line hose is connected to the host pipe (steel, iron cast, PE or other materials), and thus to the pipe network.
Primus Line® has short rehabilitation times and rapid recommissioning, and thus represents not only an inexpensive alternative to open rehabilitation, but also a high-quality method for the renewal of pressure pipes.