corrugated steel tube
Corrugated steel tube is used for laying various communications:
Hot and cold water supply
Heating and piping of boilers
Cable conduits
Fire extinguishing systems
Water underfloor heating
Air conditioning
and ventilation
ADVANTAGES
Unannealed tube
Can be bend up to 6-8 times
- Used for straight routes, e.g. for supplying coolant to radiators
Annealed tube
Soft and very easy to bend up to 40 times
- Can be used to lay complex loops for underfloor heating, heat exchangers, bypassing construction obstacles when laying HTW and HTW pipes.
- Can be bent many times, levelling out installation errors
ADVANTAGES
Unannealed tube
Annealed tube
Unannealed tube
- Used for straight routes, e.g. for supplying coolant to radiators
Soft and easy to bend up to 40 times
- Is used for complex geometries not achievable with smooth-walled pipes
- Can be used to lay complex loops for underfloor heating, heat exchangers, bypassing construction obstacles when laying HTW and HTW pipes
- Can be bent many times, levelling out installation errors
Unannealed corrugated steel tube
Features
Unannealed corrugated tube is ideal for straight sections of long runs due to its greater rigidity compared to annealed tube. The coefficient of linear expansion of steel corrugated tubes when heated is 20 times less than that of plastic pipes. What makes stainless steel corrugated pipe an ideal solution for 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 tubes, 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.
* Contingent upon receipt of DVGW certification
Annealed corrugated steel tube
Features
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 allows for installation without metal stress on the bends, ideal for installation in difficult conditions. The coefficient of linear expansion of corrugated tubes when heated is 20 times lower than that of plastic pipes, which makes them perfectly suited for heating systems. The tubes have zero oxygen permeability, hence they are not prone to suffering corrosion like other parts of the heating system made of ordinary steel, such as radiators or boilers. 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.
* Contingent upon receipt of DVGW certification
Unannealed corrugated steel tube
Features
Unannealed corrugated tube is ideal for straight sections of long runs due to its greater rigidity compared to annealed tube. The coefficient of linear expansion of steel corrugated tubes when heated is 20 times less than that of plastic pipes. What makes stainless steel corrugated pipe an ideal solution for 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 tubes, 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.
Annealed corrugated steel tube
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.
SPECIFICATIONS UNAnnealed
| Index | DN15 | DN20 | DN25 | DN32 |
|---|---|---|---|---|
| Inner diameter, mm | 14,1 | 21 | 27 | 32 |
| Tube wall thickness, mm | 0,3 | |||
| Minimum number of corrugation peaks, pcs. by 100 mm | 20 | 19 | 18 | 18 |
| Outer diameter, mm | 18,1 | 25,6 | 32 | 37,6 |
| Tube wall thickness, mm | 400 (304 steel) / 550 (316L steel) | |||
| Working pressure, mpa | 1,5 | |||
| Minimum tube bending radius, mm | 40 | 50 | 60 | 90 |
| Breaking pressure at 20°c, mpa | 21 | |||
| Linear expansion coefficient 10-6.1/°с | 17 | |||
| Coefficient of thermal conductivity | 17 | |||
| Life time | 30 years | |||
SPECIFICATIONS Annealed
| Index | DN15 | DN20 | DN25 | DN32 | DN40 | DN50 | ||
|---|---|---|---|---|---|---|---|---|
| Inner diameter, mm | 14,1 | 21 | 27 | 32 | 42 | 53,5 | ||
| Tube wall thickness, mm | 0,3 | |||||||
| 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 | ||
| Tube wall thickness, mm | 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 | |||||||
Stahlmann corrugated pipe DN12 and DN16 for flanging
Stahlmann corrugated pipes DN12 and DN16 are used for manufacturing flexible connections for hot and cold water supply systems, heating systems, solar systems (connection of solar collectors), ventilation and air conditioning systems, as well as technological pipelines for transportation of liquids that are not aggressive to the pipe materials.
Stahlmann corrugated pipe flexible liners using Stahlmann branded union nuts ensure high reliability and tightness of connections with a long service life.
SPECIFICATIONS pipe for flanging
| Indicator | DN12 | DN16 | ||
|---|---|---|---|---|
| Material | Stainless steel 316L | Stainless steel 316L | ||
| Inner diameter, mm | 12,4 | 16,0 | ||
| Pipe wall thickness, mm | 0,25 | |||
| Minimum number of corrugation peaks, pcs. per 100 mm | 21,5 | 20,5 | ||
| Outer diameter, mm | 16,1 | 20,0 | ||
| Limit deviations of corrugated pipe dimensions, mm | ± 0,3 | |||
| Operating temperature at pressure 1.5 MPa, °С | 150 | |||
| Maximum short-term permissible temperature, °C | 550 | |||
| Minimum unpressurized temperature, °C | -60 | |||
| Operating pressure, MPa | 1,5 | |||
| Minimum bending radius of annealed tube, mm | 33 | 45 | ||
| Maximum (destructive) pressure at 20 °C, MPa | 21 | |||
| Coefficient of linear expansion 10 -6 1/°C | 17 | |||
| Heat transfer coefficient, W/m*K | 17 | |||
| Service life, as minimun | 30 years | |||
