32
WVM_BASIS_EN_03—07/2016
It is therefore vital to observe the following points:
Do not allow the maximum pressure loss in the air inlet and outlet
pipelines to exceed 20 mbar (e.g. maximum 10 m pipline with three
bends)!
The selected diameter of the air inlet and outlet pipelines must be at least two
nominal widths greater than that specified by the connection flange on the
vacuum pump!
—
In order to prevent corrosion in the pipes, we recommend the use of
galvanised or stainless steel piping.
—
Provide a supporting fan in case of longer or widely branched pipelines
and high differential pressures. Please contact the manufacturer for more
information.
—
The exit point of lines must be
protected with a rainguard to
prevent water from reaching the
dryer inside (see figure).
—
If necessary, the exit point of
lines should be barred with grilles
in order to prevent foreign objects
or animals from entering the
dryer.
Rainguard when lines point upwards
—
The outlet line must be installed
in such a way that there is no risk
of injury from hot regeneration
gas.
Rainguard when line exits to the side
—
If both an inlet and an outlet line are installed, ensure that the escaping
hot regeneration gas is not again drawn into the inlet line. The outlet
opening of the outlet line should thus be positioned higher than the inlet
opening.
—
If both an inlet and an outlet line are installed, ensure that condensation
water cannot drop from the outgoing line onto the supply air intake when
installing supply as well as outgoing lines. For this purpose, the outlet line
should be routed farther to the outside than the inlet line.
—
Route the supply line at sufficient height to prevent taking in coarse dirt
or other detrimental foreign objects.
