3
1
4
2
5
6
7
8
Fig. 4:
Design of vacuum pump MVP 070-3 C
1 Handle
5
Vacuum connection
2 Mains switch
6
Rubber feet
3 Voltage selector switch
7
Gas ballast valve
4 Cold-device socket with locking clip
8
Exhaust
3.1.1 Drive
The drive motor is an alternating current motor with
● reversible voltage range on the voltage selector switch,
● thermal protection switch,
● mains switch and
● rubber connector
In event of excess temperature (> 95 °C), the thermic protection switch interrupts the motor current, but
does not offer a permanent shut-down of the motor. Once the motor has cooled down, the vacuum
pump restarts automatically.
3.1.2 Pumping system
Diaphragm pump MVP 040-2 has 2 pumping stages.
Diaphragm pump MVP 070-3 (C) has 4 pumping stages.
3.1.3 Cooling
The diaphragm pump is convection-cooled. The drive motor has its own fan.
3.1.4 Gas ballast
An integrated gas ballast system serves the controlled supply of ambient air or inert gas into the suction
chamber. Gas ballast supports the reduction of condensate accumulating in the pumping system.
Product description
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