Flexible shaft Flexible tube for ventilation, air conditioning and chimneys End fittings and Threaded connections Metal flexible corrugated leakproof hoses Metal flexible hose News Inderflex-Technoflex

 

 
 
Corrugated metal hoses
BN : Metal flexible corrugated leakproof hoses

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.

 
Inderflex - Technoflex - Zone Industrielle BP 6 - 77820 LE CHATELET EN BRIE - FRANCE
www.inderflex-technoflex.com - (33) 01 60 66 61 82