Comflex® Rubber Expansion Joints Engineering Guide

Application:
Type 49 For heating systems, as per DIN 4809
A-red For continuous duty in warm and hot water heating at
100 °C/110 °C and 10bar/6bar working pressure over life.
Not suitable for oil-related media.
TYPE 49
Type 49
blue
Type 49
white
Type 49
green
Type 49
yellow
Type 49
black
For drinking water / hot water
For cold and hot water, also with the addition of
chemicals for water treatment. Industrial water, acids,
lyes, alcohols, esters and ketones. Not suitable for
oil-related media.
For the food and beverage industry
Also suitable for oil- and fat-containing foodstuff.
For chemical plants
For heavy chemical use.
For oil, fuel, gas
Application range: natural and town gas, blast furnace
gas, fuels, lubricants, heating, cooling water emulsions.
For water pipes
For cold and hot water, water with detergents,
sea water, swimming pool water, waste water.
Not suitable for oil-related media.
DN
32
40
50
65
80
100
125
150
175
200
250
300
350
400
500
Overall
length
mm mm cm 2 mm
100
100
100
100
100
100
100
100
100
100
100
100
100
110
110
110
110
120
135
150
170
195
260
285
310
360
410
460
515
615
18
18
35
56
87
130
190
263
334
416
607
830
1100
1385
2091
140
150
165
185
200
220
250
285
315
340
395
445
505
565
670
Permissible % of indicated movement relative to temperature:
up to 50°C ~ 100%
up to 70°C ~ 80%
up to 90°C ~ 70%
Note:
For aggressive media please contact James Walker
Townson. The bellows must not be painted or insulated.
See further installation information in Annex.
D
Flange PN 10 Movement absorption Weight
Bellows
ØA
Eff. surface
ØPC Ød n s axial lat. ∠ ° * ØC
+ - +/-
mm mm mm mm mm +/- mm kg
100
110
125
145
160
180
210
240
270
295
350
400
460
515
620
M16
M16
M16
M16
M16
M16
M16
M20
M20
M20
M20
M20
M20
M24
M24
4
4
4
4
8
8
8
8
8
8
12
12
16
16
20
16
16
16
16
18
18
18
20
20
20
20
20
20
25
25
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
79
79
89
104
119
142
169
195
220
245
295
345
396
450
550
3.0
3.6
4.4
5.3
6.5
7.3
8.9
12.3
16.2
16.2
20.3
23.1
30.1
43.2
53.8
* Only valid for an assembly shortened
by about 10 mm (90/100mm).
Accessories:
Tie bar/Restraints See page 48
Deflector sleeve See page 50
Flameproof protective covers See page 50
Earth Covers See page 51
To order or get further details, call your local contact 21 shown on rear cover or listed at www.jameswalker.biz 21