Pump Description - Agilent Technologies TV 301SF Notice De Mode D'emploi

Pump Description

The pump consists of a high frequency motor driving a turbine fitted
with 9 bladed stages and 3 Macrotorr stages. The turbine rotates in
an anticlockwise direction when viewed from the high vacuum flange
end.
The turbine is made of high-strength aluminium alloy, machined from
a single block.
Proceeding from the high vacuum to the forevacuum region, the
turbine stages sequence is:





The Macrotorr stages are in the form of 3 discs.
The turbine rotor is supported by permanently lubricated high
precision ceramic ball bearings installed on the forevacuum side of
the pump.
The static blades of the stator are made of stainless steel. These are
supported and accurately positioned by spacer rings.
The Macrotorr stators are in the form of self-positioning machined
discs with pumping channels and an opening restricted by the
corresponding rotor discs. These are made of aluminium alloy.
During normal operation, the motor is fed with a voltage of 54 Vac
three-phase at 963 Hz. To reduce losses during start-up to a
minimum, the frequency increases according to a ramp with a higher
initial voltage/frequency ratio.
The pump can be water cooled or air cooled: in the first case the
customer can use the dedicated channels on the pump body, in the
second case an external optional fan is available.
TV 301SF Navigator User Manual /
1st stage with a blade angle of 42°,
2nd stage with a blade angle of 28°,
3rd stage with a blade angle of 24°,
4th and 5th stages with a blade angle of 20°,
6th, 7th, 8th and 9th stages with a blade angle of 10°.
87-900-957-01 (H)
Technical Information
Description of the TV 301SF Navigator
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