17
Technical Information
Technical Specification
Technical Specification
Tab. 2
Pumping speed
(with inlet screen)
Compression ratio
Base pressure with
recommended
forepump
Inlet flange
Foreline flange
Rotational speed
Start-up time
Recommended
forepump
Operating position
Operating ambient
temperature
Bakeout
temperature
Vibration level
(displacement)
Lubricant
Cooling
requirements
Noise level
212/248
N
:
680 l/s
2
He:
810 l/s
H
:
850 l/s
2
N
:
>1 x 10
9
2
He:
5 x 10
7
H
:
2 x 10
6
2
< 1 x 10
mbar
-10
(< 1 x 10
-10
(According to standard DIN 28 428, the base pressure is that
measured in a leak-free test dome, 48 hours after the completion
of test dome bake-out, with a Turbopump fitted with a ConFlat
flange and using the recommended pre-vacuum pump)
ISO 160 F
KF 25
38000 rpm
< 4 minutes
DS 402, TriScroll 300
Any
+10 °C to +45 °C
80° C at inlet flange max.
< 0.01 μm at inlet flange
permanent lubrication
Forced air
<55 dB(A) at 1 meter
TV 801 Navigator Bolted Flange User Manual / 87-900-980-01
Torr)
(D)