When connecting water meters, you need to make a lot of fittings for the connections. Usually this happens in very cramped conditions, and the ease of bending of corrugated stainless pipes will become a big plus in the work when solving the installation problem.
Therefore, when installing a water control system, many meters prefer flexible corrugated stainless pipes with a through diameter of 15 mm and 20 mm.
Characteristics of corrugated stainless steel pipes for water supply
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Flexible corrugated stainless steel pipes for water supply |
Stainless steel AISI 304, analog (08X18H10) |
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Corrugated stainless pipes, annealed (HF), unannealed (GF), (diameters) |
15 mm (½") |
20 mm (¾") |
25 mm (1") |
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Outside Diameter (Including PE-sheath) (D), mm |
18,9 |
26,2 |
32,5 |
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Outer diameter of corrugated pipes (d1), mm |
17,9 |
25,2 |
31,0 |
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Inner diameter of corrugated pipes (d2), mm |
14,5 |
21,2 |
26,5 |
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Allowable error, mm |
0,2 |
0,2 |
0,4 |
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Water pipe wall thickness, mm |
0,27 - 0,3 |
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Additional coating thickness (PE-shell), mm |
0,4 |
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Length of corrugated pipes in the bay, meters |
50-100 |
30-60 |
30 |
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Weight of 1 square meter of corrugated pipe, kg |
0,155 |
0,240 |
0,30 |
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Corrugation step at the pipe, mm |
4,76 |
5,00 |
5,26 |
| The volume of water in the corrugated pipe, liters / 1 meter | 0,219 | 0,447 | 0,71 |
| Corrugated pipe surface area, sq.m / 1 meter | 0,069 | 0,101 | 0,180 |
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Working temperature in the joints of the corrugated pipe-fitting, С |
from 0 to 100 |
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Working temperature of corrugated pipes, С |
from -50 to 400 |
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Maximum temperature at corrugated pipe-fitting connections, С |
from -40 to 150 |
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Maximum temperature of corrugated pipes, С |
from -50 to 600 |
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Recommended working pressure for the connection of the corrugated pipe-fitting, atm |
15 |
12 |
12 |
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Maximum allowable pressure on the connection of the corrugated pipe-fitting, atm |
60 |
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Maximum (breaking) pressure on the corrugated pipe, atm |
200 |
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Coefficient of linear expansion for corrugated pipe |
17 |
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Coefficient of equivalent uniformly granular roughness of the pipeline |
0,008 |
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Coefficient of thermal conductivity of corrugated pipes, W / m * K |
17 |
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Minimum bending radius of corrugated pipes (manually), mm |
45 |
75 |
90 |
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Additional coating (PE shells), color: blue, white, yellow |
Poly Ethylene (PE) |
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Service life of stainless steel pipeline, years |
Not limited |
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Service life of O-rings in connecting fittings in non-aggressive environments, years |
30 |
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