Instructions for Use
MS120 Single Stage Rotary Vane Pumps User Manual / 87-900-150-01(B) 154/198
WARNING!
Avoid operating the pump with inlet port vented to atmospheric pressure.
It is recommended not to exceed 5 starting/hour.
Gas-ballast
The pumps of the MS series are equipped with gas ballast valve and
with a manual valve which permits its use or its exclusion.
The limit pressure of the pump depends on this selection. For a
correct use, please refer to paragraph “Water vapour suction”.
Figure 13
=0,2 mbar
=0,07 mbar
I
Gas ballast
ON
O
Gas ballast