Pump Description - Agilent Technologies TV 551 Navigator Bedienungshandbuch

Figure 9

Pump Description

The pump consists of a high frequency motor driving a turbine fitted
with 8 bladed stages and 4 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 for vacuum
region, the turbine stages sequence is:
The Macrotorr stages are in the form of four discs.
The turbine rotor is supported by permanently lu-bricated high
precision ceramic ball bearings in-stalled on the forevacuum side of
the pump.
TV 551/701 Navigator User Manual / 87-900-934-01
Model 969-8837
1st stage with a blade angle of 40°,
2nd stage with a blade angle of 34°,
3rd stage with a blade angle of 28°,
4th and 5th stages with a blade angle of 24°,
6th stage with a blade angle of 20°,
7th and 8th stages with a blade angle of 16°.
Technical Information
Description of the TV 551/701 Navigator
(M)
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