Technical data

20
Compressed Air Applications Manual | Pipework design and installation
For preparing a good design, it is impor-
tant to be well informed about the actual
conditions at the relevant plant. Combin-
ing different energy lines in or on the
same carrier elements saves both instal-
lation time and costs. Since plastic piping
is approximately 80 % lighter than metal
piping, the installation expenditure is cor-
respondingly reduced.
As a first step, it will be necessary to pro-
duce a schematic, isometric drawing.
The pipework layout must also examine
if the pipe routes are located close to
other operational areas – such as vehi-
cle passages or the movement range of
suspended loads – and ensure proper
protection against mechanical damage,
sudden shocks or impact loads.
Furthermore, it should be taken into ac-
count that plastic pipes react to tempera-
ture changes by expanding or shrinking.
In the case of compressed air lines, such
temperature changes are normally due to
the ambient temperature.
Pipework design and installation
DP ring line
with crosspipers
DP ring line
MP
DP feeder branch
R
C
Polybutene (PB) pipes can generally be
laid according to two different installation
methods.
I Bending or expansion section in
stallation
This makes allowance for thermally
induced changes in length.
II Rigid installation
Here, thermally induced changes in
length must be taken up by the pipes.
Main pipe (MP)
Distribution pipe (DP)
Connecting pipe (CP)