Dosapro Milton Roy G A Series, Инструкция по эксплуатации, Страница: 7 / 40

I - 2
•
•
a drive device comprising a motor [1],
•
a mechanical assembly [2],
•
a liquid end [3].
Leak-tightness between the mechanical assembly and
the liquid end is ensured by means of a bellows.
Capacity adjustment is controlled either manually (by a
stroke adjustment knob [4]) or automatically by a control
box [5] (such as in the case of a G PULSE version
single-phase motor).
Various components of the pump are shown in Figure
1.2a.
Note : For further information on the automatic control
system, see the relevant specific manual.
I - 3. OPERATING PRINCIPLE OF THE
PUMP
See Figures 1.3b and 1.3c.
Fig. 1.3b : Setting to zero stroke
Suction phase Discharge phase
Fig. 1.3c : Setting to maximum stroke
1 Worm 7 Diaphragm
2 Tangential wheel 10 Stroke = two times the distance between (A) and (B)
3 Eccentric 11 Position at rear neutral point
4 Connecting rod 12 Position at forward neutral point
6 Crosshead