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6. VOSS quick connect
system 232 with nylon
plugs
6.1 Reduced impact
toughness
The VOSS quick connect sys-
tem 232 with nylon plug is a
variant of the same system
with a brass plug; it can be
installed in the same valves
and other components in
pneumatic braking systems.
See the figure on the right for
a comparison of the nylon
and brass plug.
In contrast to the plugs made
of brass, nylon plugs have
considerably lower impact
strength over the entire tem-
perature range from -40°C to
+100°C. The result is a reduc-
tion in safety reserves with
respect to impact load (during
initial and repeated assembly,
when handled inappropriately
during service operations,
when stepped on, when sub-
jected to flying stones while
driving, etc.)
6.2 Long-term behaviour
Nylon has a different longterm
behaviour with respect to
strength and shape stability. It
should therefore be protected
against extremes of tempera-
ture (e.g. radiating engine
heat).
7. Further information
Plugs should not be subjected
to damage during assembly or
servicing or while the vehicle
is being driven as the func-
tions of the pneumatic braking
system might otherwise be
impaired. After assembly or
service operations, it is imper-
ative to check the operational
reliability of the system (pres-
sure test). The connections
should be shielded against
damage by appropriate layout
and positioning (e.g protected
by cover plates.)
Due attention is to be paid to
the limits of application of the
materials under extreme wor
king conditions (see section
3.1).
Air lines subjected to torsional
stress for long periods (≥
1
/
2
h)
at temperatures of ≥ 100˚ C
may become subject to leak-
age in the region of the fir-
tree.
Appropriate safeguards are to
be taken because this will
affect the function of the
pneumatic braking system.
8. VOSS customer service
The VOSS customer service is
at your disposal for all ques-
tions concerning quick con-
nect systems, nylon tubing,
routing of air lines, etc.
9. Industrial property rights
We refer our customers to
our national and foreign
patents, registered designs,
trademarks and property right
applications.
Drawings of the VOSS quick
connect system 232 may not
be reproduced or made
accessible to third parties
without our prior consent.
We only deliver according to
our General Terms and Con-
ditions of Business, which you
can download and save from
http://doc.voss.de/aga/VOSS-
Automotive-GmbH-AGB_eng.
pdf. We contradict expressly
to regulations to the contrary.
Comparison between brass and nylon plugs of
VOSS quick connect System 232
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