Vent Valve Installation; Vent Device Installation - Varian 969-9368 Série Mode D'emploi

VENT VALVE INSTALLATION

The vent valve mod. 969-9843 enables undesired
pump areation during a temporary power failure (5
sec maximum) to be avoided, and enables an
automatic vent operation.
Unscrew the threaded plug.
Screw the adapter (1) into the vent hole (2) of the
pump.
Fix the valve (3) to the adapter (2).
Tighten the valve using a 16 mm hexagonal span-
ner.
CAUTION
Do not overtighten the valve as this may damage
the thread on the pump.

VENT DEVICE INSTALLATION

The vent device mod. 969-9831 allows to avoid
undesired pump aeration of the pump during a
temporary power failure (adjustable time up to 36
min.), and enables an automatic vent operation.
Unscrew and remove the threaded plug.
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TECHNICAL INFORMATION
87-900-862-01(G)