Stahlmann stainless steel corrugated tubes are an ideal product for arranging utilities.
Due to these advantages, corrugated steel tube is used for laying various communications:
Annealed steel corrugated tube Stahlmann has increased ductility and flexibility, as well as a large margin of safety during repeated bending. The flexibility of annealed corrugated tubes requires installation without metal stress on the bends, ideal for installation in difficult conditions. The coefficient of linear expansion of steel corrugated tubes when heated is 20 times less than that of plastic pipes. What makes the corrugated pipe visible to heating systems.
Also, these tubes have zero oxygen permeability, which means that they do not allow oxygen to pass through, the presence of which leads to the formation of corrosion of other parts of the heating system made of ordinary steel, such as radiators or boiler heat exchangers. So, when using corrugated stainless steel pipes, you increase the service life of the entire heating system in your home.
Stahlmann steel corrugated tubes are an environmentally friendly solution: they are compatible with potable water. When using them, there is no risk of release of harmful substances under the influence of temperature.
Tube size (nominal bore) | ||||||
Index | DN15 | DN20 | DN25 | DN32 | DN40 | DN50 |
Inner diameter, mm | 14,1 | 21 | 27 | 32 | 42 | 53.5 |
Tube wall thickness, mm | 0,3 | 0,35 | ||||
Minimum number of corrugation peaks, pcs. by 100 mm | 20 | 19 | 18 | 18 | 14 | 13 |
Outer diameter, mm | 18,1 | 25,6 | 32 | 37,6 | 48,1 | 59,9 |
Maximum short-term allowable temperature, °с | 400 (304 steel) / 550 (316L steel) | |||||
Working pressure, mpa | 1,5 | 1 | ||||
Minimum tube bending radius, mm | 30 | 40 | 50 | 80 | 120 | 150 |
Breaking pressure at 20°c, mpa | 21 | |||||
Linear expansion coefficient 10-6.1/°с | 17 | |||||
Coefficient of thermal conductivity | 17 | |||||
Life time | 30 years |