9
3.6. Connecting The Exhaust Flange
Use usual small flange components (DN 25 ISO-KF) or
screwed hose connections for connecting the exhaust line.
➡
Provide the flange connection with clamping ring and
centering ring at the exhaust flange (DN 25 ISO-KF).
➡
With rigid pipe connections fit a bellows in the connecting
line to reduce vibration.
➡
Vacuum chambers with a volume of > 2 litres must have a
non-return valve on the exhaust side to prevent their
venting via the exhaust flange after switching off the
pump.
Connecting the vacuum flange
1
Flange position at delivery
B
Blank flange for all alternative of flange positions
Alternative flange positions (viewed from the bottom)
B
1
The utmost cleanliness must be observed when
fitting all high vacuum parts. Unclean
components prolong the pumping time.
➡
Fit a vacuum safety valve (Accessory) in the vacuum line.
This prevents the vacuum chamber being ventilated via the
backing pump.
☞
PLEASE NOTE
➡
Cover and bolt down with a blank flange the inlet opening
pointing vertically up; note the sealing ring.
➡
Fit the desired component part to the inlet opening using
claws; note the centering ring.
non-return
flap
exhaust flange
DN 25 ISO-KF
OnTool
Booster 150
Mounting the non-return flap
➡
Lay piping from the pump sloping downward so that no
condensate can flow back into the pump; otherwise fit a
condensate separator.
Be sure to conduct away the exhaust gases
from the pump. Do not reduce the free cross
section of the exhaust flange with following
components. The exhausted process gases and
vapours can represent a health hazard and can
also be environmentally damaging.
Use an exhaust silencer or connect the exhaust
flange to an exhaust line if requested.
WARNING
CAUTION
Summary of Contents for OnTool Booster 150
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