Description of the TV 303
The TV 303 pumping system consists of a pump and a dedicated
controller.
The pump model number is 969-8964 (ISO100 vacuum flange).
The controller model number is 969-8998 (120/220 Vac).
Pump Description
The pump consists of a high frequency motor driving a turbine fitted
with 5 bladed stages and 1 TwisTorr stage. 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.
Figure 3
Proceeding from the high vacuum to the forevacuum region, the
turbine stages sequence is:
TV 303 User Manual / 87-901-019-01
Model 969-8964
1st stage with a blade angle of 42°,
2nd stage with a blade angle of 28°,
(A)
Technical Information
Description of the TV 303
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