Vent Valve Installation - Varian Turbo-V 150HT Bedienungshandbuch

and then screw the gas purge valve (with a torque
of 2.5 Nm) as shown in the following figure.

VENT VALVE INSTALLATION

The vent valve mod. 969-9833 allows to avoid un-
desired venting of the pump during a temporary
power failure (5 sec maximum), and enables an
automatic vent operation.
Unscrew the threaded plug (see figure below).
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TECHNICAL INFORMATION
Screw the vent valve into the pump without using
the supplied adapter.
Tighten the valve using a 16 mm. hexagonal span-
ner with a torque of 2.5 Nm.
! ! ! !
Do not overtighten the valve as this may damage
the thread on the pump.
31
CAUTION
87-900-891-01(C)