Construction :
Corrugated metal hose with wall single, carried out by hydraulic
process starting from a tube, longitudinally welded.
Profile :
Pipes with parallel waves.
Material :
Tin-bronze CuSn4.
Braiding :
Stainless steel wire or clear bronze wire
Connections :
Filletés supports, connections, end fitting.
Dimensions :
DN 20-DN 100
Pressures:
70 bars maximum. The pressures which appear in the table depend on the
nominal diameter, the temperature, the number of braids etc.
Amplitude of temperature :
-196°C - +250°C
Applications :
Distribution of vapor, water, the air, the gas etc... Intended for the
sound-proofing and the damping of vibrations in the installations of
refroidissement. Eléments of connection flexible devices in the
systems of central heating. Shim elements in the event of misalignment
of rigid tubes (drains), etc.
|
|
| DN
|
Internal
diameter
/mm/
|
Numbers
tressses |
External
diameter
/mm/
|
Press. of
service Pr /bar/
|
Minimal
radius of curvature /mm/
|
Masse (kg/m)
Tolér. +/- 10%
|
| Cut |
Tolér.
+/- |
Cut |
Tolér.
+/- |
Stat. |
Dynam. |
| 20
|
18,8
|
0,3
|
0 |
27,2 |
0,3 |
5 |
50
|
240
|
0,310 |
1 |
28,5 |
0,5 |
47 |
0,550 |
2 |
29,8 |
0,6 |
70 |
0,790 |
| 25
|
25,1
|
0,3 |
0 |
35,5 |
0,3 |
4 |
60
|
250
|
0,420 |
1 |
36,8 |
0,5 |
38 |
0,720 |
2 |
38,1 |
0,6 |
55 |
1,020 |
|
32 |
31,5 |
0,3 |
0 |
43,5 |
0,3 |
3 |
80
|
265
|
0,610 |
1 |
44,7 |
0,6 |
34 |
1,060 |
2 |
45,9 |
0,8 |
48 |
1,510 |
| 40
|
37,8 |
0,3 |
0 |
50,6 |
0,3 |
2 |
110
|
310
|
0,768 |
1 |
53,1 |
0,6 |
30 |
1,468 |
2 |
55,6 |
0,8 |
41 |
2,168 |
|
50 |
49,9 |
0,4 |
0 |
65,6 |
0,4 |
1,5 |
140
|
355
|
1,120 |
1 |
67,7 |
0,8 |
25 |
2,060 |
2 |
70 |
1,0 |
36 |
3,000 |
|
65 |
63,2 |
0,4 |
0 |
80,6 |
0,4 |
1 |
180
|
415
|
1,700 |
1 |
82,8 |
0,8 |
21 |
2,900 |
2 |
85 |
1,0 |
30 |
4,100 |
| 80
|
75,7
|
0,4 |
0 |
95,5 |
0,4 |
0,7 |
200
|
475
|
2,140 |
1 |
97,8 |
0,8 |
19 |
3,540 |
2 |
100,8 |
1,0 |
27 |
4,940 |
|
100 |
101,8
|
0,5 |
0 |
124,8 |
0,5 |
0,5 |
225
|
585
|
3,560 |
1 |
127 |
1,0 |
14 |
5,460 |
2 |
129 |
1,2 |
20 |
7,360 |
The operating pressure (Pr), quoted in
the table, is the allowed pressure operating maximum at the ambient temperature.
The allowed pressure operating maximum at the temperatures,
higher than the ambient temperature, is calculated according to the following
formula:
Prt = Pt X kt (bar)
| Temperature
of Service /°C/ |
20 |
100 |
150 |
200 |
250 |
| Coefficient
of reduction kt
|
1 |
0.9 |
0.8 |
0.75 |
0.7 |
Example:
For pipes with only one braid, with diameter DN 50, intended
for the distribution of fluids with stable flow, operative at the temperature
of 150°C and in the absence of vibrations, the allowed pressure operating
maximum is calculated as follows:
Prt = 25 X 0.8 = 20 bars
Order :
During the ordering, please quote : the type of pipes, the diameter nominal
(LN), operating pressure, distributed fluid, the type, size and the material
of the connections.
Foot-note :
The operating pressures and the masses of the pipes appearing in the table
refer to the pipes braided with stainless steel wire. |
