Inlet Screen Installation; Heater Band Installation - Varian Turbo-V 1800A Manual De Instrucciones

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INLET SCREEN INSTALLATION

The inlet screens mod. 969-9306 prevents the
blades of the pump from being damaged by debris
greater than 2 mm diameter.
The inlet screen, however, will reduce the pumping
speed by about 15%.
The inlet screen is fitted in the upper part of the
pump, as shown in the figure.
The screen can be mounted on each pump model.
The following figure show the overall flange di-
mensions with the protection screen fitted on
pump with ISO flange and pump with CFF flange.

HEATER BAND INSTALLATION

The heater band model 969-9811 and 969-9812
can be used to heat the pump casing when a
bakeout is needed.
The heater band is applied to the upper part of the
pump casing, as shown in the figure, and heats it
to a temperature of about 80° C.
The heater band must be mounted such that there
is perfect thermal contact with the pump wall to ob-
tain fast and efficient heating.
Switch on the heater while the turbopump is in op-
eration. In the event of turbopump overheat, the
heater will be automatically cut out by the thermis-
tor sensor.
28
TECHNICAL INFORMATION
87-900-867-01(A)

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Este manual también es adecuado para:

969-9064969-9065969-9066

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