8
Product description
4.2 Construction and function
The UnoLine™/DuoLine™ pumps are oil sealed, single-/two-stage rotary vane
pumps with air cooling and pressure oil lubrication and suitable for many coarse
and fine vacuum applications. The pumps are equipped with a vacuum safety
valve that vacuum seals the vacuum chamber and vents the pump at the same time
when the pump is at a standstill. The pump version with magnetic coupling is not
subject to any mechanical wear, and is thus maintenance-free.
Fig. 3: Rotary vane pump UNO/DUO 35/65
Fig. 4: Rotary vane pump DUO 35/65 C
1
Vacuum flange
2
Exhaust flange
4
Support stand
6
Casing
74
Gas ballast valve
80
Sight glass
104 Base plate
140 Operating fluid filler
screw
142 Operating fluid filler
screw
234 O-ring
236 O-ring
250 Motor
74
Gas ballast valve with
flushing gas connection
110 Oiler
104 Base plate
142 Operating fluid drain screw
236 O-ring
250 1
2
140/ 74
234
4 104
6
80
142/236
110
74
