Many users, both private individuals and companies, are looking for a non-return valve that can be installed quickly and easily.
Stop Silent Light is available in a size range from 100mm to 300mm
in terms of the internal diameter of the tube to be secured.
For intermediate sizes, Lasso Technik designs adapters
for a better harmony between the expansion flange of the valve and the pipe walls.
In some cases, the pipe may have been slightly deformed due to ground subsidence.
In this case, the inside diameter of the pipe may sometimes vary depending on whether you are measuring vertically or horizontally. Thus, when ordering, you can specify if there is a significant difference between the vertical and horizontal diameter of the pipe.
However, the technology of the Stop Silent Light Backwater check-valve and its elastomer diaphragm is capable of taking the shape of the pipe.
Simply insert the backwater flap into the appropriate pipe or inspection shaft, secure it with an Allen key provided when ordering and you're done! This innovation avoids installation costs and structural work.
More generally, the Stop Silent Light non-return valve also acts as an odour-flap. Its continuously closed diaphragm also prevents small animals from entering the pipes. As there are no moving mechanical parts or electronics that can fail, Stop Silent Light has a longer than normal service life.