1.2 Supplied Equipment
Check if all the parts attached are complete. When there is any damage, or
when components are missing, contact us immediately. All LEYBOLD vacu-
um pumps are equipped with:
■
Operating Instructions
■
Purge Gas Swagelok Connector
■
Lubricants (already filled in)
Fig. 1.8 Pumping Speed Curves for LEYVAC LV 250
0
0.001
300
200
100
250
150
50
1
60 Hz Pump Speed Air 50 Hz Pump Speed Air
50 Hz Power Air 60 Hz Power Air
Power Consumption [kW]
Pumping Speed [m
3
/h]
Inlet Pressure [mbar]
LEYVAC LV 250
0.01 0.1 10 100 1000
14
2
8
12
10
6
4
0
Fig. 1.8a Permissible gas inlet temperature as function of the inlet pressure
Gas inlet temperature (°C)
Inlet pressure (mbar)
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