Targeted cross-sectional reduction

Since the early 1990s, water consumption in most industrial nations has dropped significantly.

Water pipelines often are older and have been designed for higher capacities. The consequence: Flow velocity in the pipes is decreasing. If it becomes too low, the water possibly stands still for too long. Particularly for drinking water pipelines, high hygiene standards apply, however.

A targeted reduction of a pipe’s cross-section can remedy the situation. With volume staying the same, a reduced diameter increases the flow velocity and prevents deposits.

Primus Line^® is perfectly suited for cross-sectional reduction. The liner is statically self-supporting and not glued to the host pipe. Thus, its diameter can independently be chosen such that flow velocity is in an ideal balance with the required line capacity. A liner by Primus Line with DN 200 can readily be used in a DN 300 host pipe.

Two existing access points to the pressure pipe or small excavation pits with little space requirements are sufficient for installation. This way, supply is restored very rapidly.

Positive side effect: With Primus Line^®, the service life of the drinking water pipeline is extended by at least 50 years.