Comflex® Rubber Expansion Joints Engineering Guide

James Walker Townson Rubber Comflex ® Expansion
Joint Type 58
Type 58 is a cylindrical Comflex ® Expansion Joint produced by hand
winding. The manufacturing process allows production in variable overall
lengths. It is only able to compensate for movement in lateral and angular
planes due to its design.
TYPE 58
Design:
Cylindrical rubber bellows body with reinforcing inserts and
integral reinforced solid rubber flanges as well as separate backing
support flanges.
Application:
Noise and vibration damper as well as expansion expansion joint
for use in delivery pipe lines, containers, building outlets and pumps,
and wherever a connection bridging piece allowing a smooth free flow
is required.
Details for type 58
Bellows
colour code
Core
(inner)
Reinforcing
material
Cover
(outer)
Permissible
operating data
Electrical
resistance
Hardness
shore A
bar °C
bar °C
[Ohm cm]
red
yellow/St
yellow
green
white
lilac
EPDM
NBR
NBR
CSM
NBR/white
FKM
Nylon cord
Steel cord
Nylon cord
Nylon cord
Nylon cord
Aramid
EPDM
CR
CR
CSM
CR
CR
6 20
6 20
6 20
6 20
6 20
6 20
6 90
6 90
6 90
6 80
6 80
4 150
7 x 10 3
1 x 10 2
5 x 10 3
4 x 10 4
5 x 10 3
60
60
60
65
55
65
Burst pressure > 24 bar
Flange:
Pressure resistant solid rubber
flanges with reinforcing inserts and
2-piece backing flanges in
S 235 JRG2 (RSt 37-2) drilled
according to DIN PN 10. Other
materials and hole sizes available
on request. The Comflex ®
Expansion Joint is self-sealing and
no additional gaskets are required.
Note:
Only suitable for lateral and
angular movements.
Mating flanges must be flat without
projections or recesses.
Do not insulate or paint.
See installation information.
DN
40
50
65
80
100
125
150
200
250
300
350
400
450
500
Overall
length
mm
150 - 1000
150 - 1000
150 - 1000
150 - 1000
150 - 1000
150 - 1000
150 - 1000
150 - 1000
150 - 1000
150 - 1000
150 - 1000
150 - 1000
150 - 1000
150 - 1000
ØD
ØPC
Flange PN 10
Ød
n
mm mm mm mm mm bar mm
150
165
185
200
220
250
285
340
395
445
505
565
615
670
110
125
145
160
180
210
240
295
350
400
460
515
565
620
18
18
18
18
18
18
22
22
22
22
22
26
26
26
4
4
4
8
8
8
8
8
12
12
16
16
20
20
8
8
8
8
8
8
8
8
10
10
10
10
10
10
15
15
15
15
15
15
15
20
20
20
20
24
24
24
6
6
6
6
6
6
6
6
6
6
6
6
6
6
15
15
15
15
15
15
15
15
15
15
15
15
15
15
b
s
Perm.
press.
lat.
+/-
To order or get further details, call your local contact 37 shown on rear cover or listed at www.jameswalker.biz 37