Comflex® Rubber Expansion Joints Engineering Guide
Comflex® Rubber Expansion Joints Engineering Guide
Comflex® Rubber Expansion Joints Engineering Guide
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James Walker Townson <strong>Rubber</strong> Comflex ® <strong>Expansion</strong><br />
Joint Type 42<br />
Type 42 is a robust, thick-walled rubber Comflex ® <strong>Expansion</strong><br />
Joint with integrated corrugation produced by hand winding.<br />
TYPE 42<br />
The manufacturing process makes it possible to produce this<br />
expansion joint in variable overall lengths and pressure ratings.<br />
Design:<br />
Synthetic rubber body with various reinforcing inserts and fully<br />
strengthened rubber flanges with or without steel insert. The<br />
rubber flange is self-sealing so that no additional gasket is<br />
required.<br />
Details for type 42<br />
Bellows<br />
colour code<br />
red<br />
Core<br />
(inner)<br />
EPDM<br />
Bellows design<br />
Reinforcing<br />
material<br />
Nylon cord<br />
Cover<br />
(outer)<br />
EPDM<br />
Permissible<br />
operating data<br />
bar °C<br />
8 90<br />
Electrical<br />
resistance<br />
[Ohm cm]<br />
7 x 10 2<br />
Hardness<br />
shore A<br />
60<br />
red/red<br />
EPDM<br />
Aramid<br />
EPDM<br />
80 130<br />
60<br />
yellow<br />
NBR<br />
Nylon cord<br />
CR<br />
8 90<br />
5 x 10 3<br />
60<br />
yellow/blue<br />
NBR<br />
Aramid<br />
CR<br />
80 100<br />
60<br />
green<br />
CSM<br />
Nylon cord<br />
CSM<br />
8 90<br />
4 x 10 4<br />
65<br />
white<br />
NBR/white<br />
Nylon cord<br />
CR<br />
10 80<br />
5 x 10 3<br />
55<br />
lilac<br />
FKM<br />
Kevlar ®<br />
EPDM<br />
10 150<br />
65<br />
Burst pressure > 30 bar,<br />
Suitable for vacuum 0.7 bar absolute, full vacuum with supporting ring.<br />
Flange:<br />
Both sides with pressure-strengthened solid rubber<br />
flanges, drilled according to specific requirements with<br />
one-piece steel backing flanges of material S 235 JRG 2<br />
(R-St 37-2) with corrosion protection.<br />
Design I<br />
Design II<br />
Design III<br />
Design IV<br />
with loose backing flanges<br />
with vulcanized backing flanges<br />
with loose backing flanges and<br />
supporting collar<br />
with vulcanized backing flanges and in<br />
the bellows vulcanized steel rings<br />
Design I<br />
Design II<br />
Note:<br />
For aggressive media, contact James Walker Townson.<br />
The bellows must not be painted or insulated.<br />
See installation information in Annex.<br />
Design III<br />
Design IV<br />
14<br />
To order or get further details, call your local contact shown on rear cover or listed at www.jameswalker.biz
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