2/2
B 330
Nitrogen purge and air inlet valve
device connections
GB 02999 - Edition 04 - Nov 12
Installed on the pump exhaust, the air
inlet valve is calibrated to reset the
volume of the pump to atmospheric
pressure.
When the pump is isolated (at inlet and
exhaust) the rotor slow down efficiency
is increased.
If the venting time is set, the reset to
atmospheric pressure takes place when
the pump is stopped or when faults are
registered on the controller
(
Operating instructions of the
controller
).
Valve with built-in
purge device (50 sccm)
During pump operation, it’s possible to
stop the purge, i.e. for air tightness test
of the pump.
A nitrogen purge can be connected
instead of the dust filter (1/8 NPT
female).
Air inlet valve
A nitrogen purge can be connected instead of the dust filter
(1/8 NPT female).
Filtered air
or N
2
purge
ATHM
A
Dust filter
When the inert gas purge is stopped, the pumped gases can pass from rough
vacuum side to high vacuum side and damage the maglev bearings.
It is advised to maintain the purge flow as long as the rotor is running to
protect pump internal parts.
Replace regularly the dust filter when used in dusty air.
ATHM
A
Filtered air
or N
2
purge
Dust filter
adixen Vacuum Products - Operating instructions - ATH 2300 M/MT
