7
KA 05.144/1 - 11/99
1.6 Technical data
Pumping speed for N
2
measured
with splinter guard (PNEUROP)
1650 l·s
-1
Compression for N
2
3.8·10
8
Compression for H
2
9.6·10
3
Ultimate pressure as to DIN 28 400
2·10
-10
mbar
Max. forevacuum pressure with Nitrogen
1.0 mbar
Recommended forevacuum pressure
< 10
-2
mbar
Rotor Speed
28,800 min
-1
Run-up time
< 8 min
Braking time with/without venting
1 / < 7.5 min
Cooling
water
Cooling connection,
Hose nipples for hose ID
8 to 10 mm
Cooling water temperature
15 to 30
°
C
59 to 86
°
F
Weight
approx. 72 kg
High-vacuum connection flange
DN 250 CF
Forevacuum connection flange
DN 40 KF
Recommended backing pump
DRYVAC 50
Admissible ambient temperature
5 to 40
°
C
40 to 104
°
F
Storage temperature
-10 to +60
°
C
14 to 140
°
F
Max. relative air humidity
95% (non-condensing)
Degree of protection (EN 60529)
IP 20
1.7 Ordering data
Order No.
MAG W 2000
136 30
Seal Kit
on request
2.6 Cooling water
Cooling water is only reqired when baking out the pump.
No cooling water is reqired when operating the pump at
ultimate pressure.
At cyclic operation cooling water may be reqired. If the
pump gets too hot it will be switched off with the failure
message „Bearing Temp“.
Bakeout
If pressures in the range of 10
-8
mbar are to be devel-
oped within a short period of time, the vacuum chamber
and the components installed therein will have to be
baked out.
Protect the rotor against intensive, direct heat radiation.
When baking out at the forevacuum side – at a sorption
trap, for example – ensure that the components attached
direct are not heated to more than 80
°
C (176
°
F).
The forevacuum pump must be in operation so as to
eliminate the vapors liberated at the sorption trap.
The max. bakeout temperature at the CF flange is
100
°
C (212
°
F).
32 bolts: M8 x 45
Bolt torque: 30 Nm
Fig. 2 Section through a CF flange connection
Copper gasket
Use all 32 bolts provided by Leybold
for fastening the high-vacuum flange.