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DESCRIPTION OF THE TV 141 NAVIGATOR
The TV 141 Navigator pumping system consists of
a pump with an integrated controller and is avail-
able in four models supplied with an USA standard
plug, and other four models supplied with an Euro-
pean standard plug. The four models of each
group differ only in the high vacuum flange.
The four models with the European standard plug
are:
− Model 969-9388 with ConFlat 6" external di-
ameter high vacuum flange;
− Model 969-9389 with ISO 100 high vacuum
flange;
− Model 969-9390 with ConFlat 4.5" external di-
ameter high vacuum flange;
− Model 969-9391 with ISO 63 high vacuum
flange.
The four models with the USA standard plug are:
− Model 969-9392 with ConFlat 6" external di-
ameter high vacuum flange;
− Model 969-9393 with ISO 100 high vacuum
flange;
− Model 969-9394 with ConFlat 4.5" external di-
ameter high vacuum flange;
− Model 969-9395 with ISO 63 high vacuum
flange.
The following figures show the eight models.
Pump Description
The pump consists of a high frequency motor driv-
ing a turbine fitted with 8 bladed stages and 6
Macrotorr stages. The turbine rotates in an anti-
clockwise direction when viewed from the high
vacuum flange end.
The turbine is made of high-strength aluminium al-
loy, machined from a single block.
Proceeding from the high vacuum to the for vac-
uum region, the turbine stages sequence is:
1 stage with a blade angle of 42°, 1 stage with a
blade angle of 28°, 3 stages with a blade angle of
20°, and 3 final stages with a blade angle of 10°.
The Macrotorr stages are in the form of six discs.
Model 969-9388/9392
Model 969-9389/9393
Model 969-9390/9394
Model 969-9391/9395
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TECHNICAL INFORMATION
87-900-924-01(B)
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