SAMES KREMLIN
Page 4
Manual : 573.182.112
3. OPERATING PRINCIPLE
HA
HB
B
MP
S
A
AC
19
17
18
13
14
11
12
9
8
15
20
This pump measures and mixes 2 components A and B to a single defined volume proportion (see
data sheet of the product).
The fluid sections HA and HB are coupled to an air motor MP. Their sizes have been calculated in
order that each delivers the components A and B to the predetermined proportion.
Fluid section HA draws and delivers the BASE A.
Fluid section HB draws and delivers the CATALYST B.
When pulling gun trigger (19), proportioning pump starts cycling and draws the BASE and the
CATALYST. Simultaneously, they are delivered in valves (11 and 12), check valves (13 and 14) and
are mixed in the static mixer (15). Then, they flow out completely mixed before passing through hose
(17) to the gun.
As soon as the trigger is released, the proportioning pump stops cycling :
The regulator (9) regulates the air pressure to the pump, thus regulating material pressure.
The regulator (8) regulates the atomizing air pressure to the gun.
Nota :
The valve (11) is a three-ways' valve :
- handle horizontally
⇒
fluid circulation (priming stage),
- handle vertically
⇒
fluid towards mixer (working stage, flushing stage).
The valve (12) is a color changer fitted with 2 fluid valves. These valves are piloted pneumatically
alternately, connecting the air tube in spiral on one or the other valve :
Left connection
⇒
fluid circulation (priming
stage)
Right connection
⇒
fluid towards mixer (working
stage).
Nota : During the FLUSHING stage,
- the BASE fluid section draws solvent; that solvent is exhausted towards the manifold, the mixer and
the gun.
the BASE circuit and the mixed circuit will be flushed.
- the catalyst circulates. The CATALYST circuit is not flushed.