Fluid Supply
Fluid Supply
Requirements
Do not exceed the pressure rating of the lowest rated component. See the identification label (FIG. 1 on page 4).
To reduce the risk of injury, including fluid injection, you must install a shutoff valve between each fluid supply line and the fluid manifold assembly. Use the valves to shut off fluid during maintenance and service.
ProControl models are available to operate air spray or
•Fluid supply pressure tanks, feed pumps, or circulat- ing 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 ProControl 1KS.
•See manual 313599 for Coriolis meter installation and operation instructions.
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 ProControl fluid inlets to reduce pulsation. Contact your Graco distributor for additional information.
Fluid Connections
1.Connect the solvent supply lines.
a.Connect the solvent supply line to the 1/4 npt(f) solvent purge valve inlet. See FIG. 6.
b.Multiple color system: also connect a solvent supply line to the color change stack (Q), top valve 4 or 5. See FIG. 7.
2.Connect the component supply line(s).
➜Single color system: connect component supply line to the component A flow meter inlet.
➜Multiple color system: connect supply lines to the color change valve stack (S) inlets. See FIG. 7. The color number is marked on the valve air supply line.
NOTE: Paint Recirculating System Only
•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.
NOTE: Verify that all unused fluid ports on the color change valve stack are plugged before operation. An open port will leak fluid.
NOTE: The fluid meter inlet has a fluid check valve to prevent backflow from fluid supply pressure fluctuations. Backflow can cause ratio inaccuracies.
3.Connect the gun fluid supply line between the fluid regulator or fluid manifold outlets and the gun fluid inlet.
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