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17
Technical Information
Technical Specification
Technical Specification
Tab. 2
Pumping speed
(without inlet screen)
N
:
2
He:
H
:
2
Compression ratio
N
:
2
He:
H
:
2
Base pressure with recommended
forepump
Inlet flange
Foreline flange
Nominal rotational speed
Start-up time without gas load and
with the recommended forepump
Minimum recommended forepump
Operating position
Operating ambient temperature
Bakeout temperature
Max rotor temperature
Vibration level (displacement)
Lubricant
Cooling requirements
Coolant water
240/260
Technical Specification
2050 l/s
1800 l/s
1500 l/s
> 8 10
8
8 x 10
5
4 x 10
4
10
mbar (7.5 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 CFF flange and
using the recommended pre-vacuum pump)
ISO 250 F
CFF 12" O.D.
KF 40 NW
33300 rpm
< 6 minutes
TriScroll 600
Vertical and upside-down
+5 °C to +35 °C
80 °C max. at inlet flange (ISO flange)
120 °C max. at inlet flange (CF flange)
120 °C
< 0.01 µm at inlet flange
permanent lubrication
Water
Recommended flow: ≥ 200 l/h
Temperature: +15 °C to +30 °C
Pressure: 3 to 5 bar (45 to 75 psi)
Turbo-V 2300 TwisTorr Pumps User Manual / 87-901-017-01
Torr)
-11
(B)
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