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Connection B - FORE-VACUUM PUMP
A flange KF 16 NW is available to connect the
Turbo-V 70 to the fore-vacuum pump. A hose or
vacuum approved pipe can be used. If a rigid pipe
is used, any vibration generated by the mechani-
cal pump must be eliminated through the use of
bellows.
NOTE
The Turbo-V 70 is characterized by its high com-
pression ratio also for oil vapors. When using a
mechanical oil-sealed pump, it is advisable to in-
stall a suitable trap between the turbopump and
the fore-vacuum pump in order to prevent oil back-
streaming.
Connection C - ELECTRICAL
The turbopump is connected to the controller
through an 6-pin connector. Pins B, C and D are
the 3-phase supply to the motor, pins A and F are
connected to the temperature sensor (NTC type,
30 KΩ resistance at 25o C) and pin E is connected
to the pump ground.
If the temperature sensor is disconnected, the
pump will not start. To prevent damage to the
pump when the temperature exceeds 60o C, the
sensor automatically cuts out the power supply.
ACCESSORIES
DESCRIPTION
Inlet screen DN40
Inlet screen DN63
Heather band, 120 V
Heather band, 220 V
Water cooling kit
Plastic water cooling kit
Air cooling kit
Vibration damper, DN 63 ISO
Vent valve NW 10 KF
Vent valve with fixed delay time
Vent valve with adjustable delay time
Forepump SD 40, with 1 phase uni-
versal motor
Base fixing kit
For a complete overview of Varian's extensive
product lines, please refer to the Varian catalog.
36
TECHNICAL INFORMATION
PART NUMBER
969-9309
969-9300
969-9802
969-9801
969-9337
969-9347
969-9310
969-9340
969-9109
969-9833
969-9831
P1111-307
969-9326
87-900-860-01(E)
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