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Connection B - FORE-VACUUM PUMP
A flange KF 16 NW is available to connect the
Turbo-V 250 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 mechanical
pump must be eliminated through the use of bel-
lows.
NOTE
The Turbo-V 250 is characterised 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
backstreaming.
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 25° C) and pin E is connected
to the pump earth.
If the temperature sensor is disconnected, the
pump will not start. To prevent damage to the
pump when the temperature exceeds 60° C, the
sensor automatically cuts out the power supply.
ACCESSORIES
DESCRIPTION
Inlet screen DN100
Heather band, 120 V
Heather band, 220 V
Base fixing kit
Water cooling kit
Air cooling kit (small)
Air cooling kit (large)
Vibration isolator ISO 100
Vibration isolator 6" CFF
Centering ring ISO 100
(with O-ring)
ISO clamp
Copper gaskets for 6" CFF
(10-Pack)
Nut and bolt set for 6" CFF
(25-Pack)
Vent valve with fixed delay time
Vent valve with adjustable delay
time
Vent flange NW 10 KF
Thread lubricant Fel-pro C-100
Forepump SD 40, 120 V, 50-60 Hz
Forepump SD 40, 220 V, 50 Hz
Forepump MDP 30, 120 V
Forepump MDP 30, 220 V
For a complete overview of Varian's extensive
product lines, please refer to the Varian catalog.
36
TECHNICAL INFORMATION
PART NUMBER
969-9302
969-9804
969-9803
969-9326
969-9319
969-9310
969-9313
969-9342
969-9332
IC-100 SV
IC-063-100-A
FG-0600-CI
FB-0450-C12
969-9833
969-9831
969-9109
953-0031
0418-P1111-301
949-0785-830
949-9451
949-9452
87-900-851-01(A)
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