Fluid Supply
Fluid Supply
Requirements
Do not exceed the pressure rating of the lowest rated
component. See the identification label (F
4 and F
. 2 on page 6).
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To reduce the risk of injury, including fluid injection,
you must install a shutoff valve between each fluid sup-
ply line and the fluid manifold assembly. Use the
valves to shut off fluid during maintenance and service.
ProMix models are available to operate air spray or
air-assisted systems with a capacity of up to 3800
cc/min.
•
Fluid supply pressure tanks, feed pumps, or circu-
lating systems can be used.
•
Materials can be transferred from their original con-
tainers or from a central paint recirculating line.
•
For an airless system, the user must supply a gun
trigger signal to the ProMix 2KS.
•
See manual 313599 for Coriolis meter installation
and operation instructions.
•
If you are using dynamic dosing, see Fluid Connec-
tions at right and also see Setup the Fluid Mani-
fold for Dynamic Dosing on page 26.
NOTE: The fluid supply must be free of pressure spikes,
which are commonly caused by pump stroke change-
over. If necessary, install pressure regulators or a surge
tank on the ProMix fluid inlets to reduce pulsation. Con-
tact your Graco distributor for additional information.
24
Fluid Connections
1. Connect the solvent supply lines.
a. Connect the solvent supply line to the 1/4 npt(f)
. 1 on page
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b. Multiple color system: also connect a solvent
2. Connect the component A supply line(s).
NOTE: Paint Recirculating System Only
NOTE: Verify that all unused fluid ports on the color
change valve stack are plugged before operation. An
open port will leak fluid.
3. Connect the component B line to the component B
flow meter inlet.
NOTE: The component A and B fluid meter inlets have
fluid check valves to prevent backflow from fluid supply
pressure fluctuations. Backflow can cause ratio inaccu-
racies.
4. Connect the gun fluid supply line between the fluid
manifold static mixer outlet and the gun fluid inlet.
solvent purge valve inlet. See F
supply line to the color change stack (Q), top
valve 4 or 5. See F
. 11.
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Single color system: connect component
supply line to the component A flow meter
inlet.
Multiple color system: connect compo-
nent A supply lines to the color change
valve stack (S) inlets. See F
color number is marked on the valve air
supply line.
•
The color change valves have two fluid
ports for each individual valve. If you are
recirculating paint, plumb the valves in one
port and out the other.
•
Another option is to use a tee fitting to recir-
culate.
. 10.
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. 11. The
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312778G