Different techniques, best results.
Reduced flow rate, decreasing discharge speed, or reduced line pressure are often due to the narrowing of the pipe cross-section through deposits and incrustations. These are caused by the combination of corrosion and dirt, chemical deposits, or biological growth such as roots.
We clean sand, sludge residues, and wastewater in sewers from DN 50 to over DN 2000 using modern, environmentally-friendly flushing and suction vehicles. Depending on the degree of contamination and the nominal diameter of a sewer, we use different techniques.
We clean sewers and shafts with special nozzles that are adapted to the respective pipe material, the diameter of the sewage pipe, and the high-pressure pumps of our vehicles. Our specialists thus achieve the best results in cleaning sewers in a targeted manner.
High-pressure flushing process: The principle.
In the high-pressure process, the rinsing water is pumped at high pressure through a hose at the end of which there are specially developed high-pressure nozzles. These are aligned so that the water jets clean the pipe wall. At the same time, the high water pressure creates a reaction force that transports the flushing head and hose to the target shaft against the incline of the pipe.
From there, the rinsing hose is slowly pulled back in the direction of flow. The water jets that emerge increase the flow velocity of the wastewater. They also dissolve deposits, whirl them up, and transport them to the launch shaft. There the cleaning residues are removed by suction.