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Installation
8 309474K
Installation
1. Install one regulator for each spray gun.
2. Apply thread sealant to connections as necessary.
3. Make sure that the direction of fluid flow agrees with
the flow direction markings on the regulator body.
a. Install a fluid pressure regulator
upstream
of the
gun: Connect the fluid line from the pump to the
inlet of the fluid regulator. Connect the fluid line
to the gun to the regulator’s outlet.
b. Install a back pressure regulator
downstream
of
the gun. Connect the fluid return line from the
gun to the inlet of the back pressure regulator.
Connect the fluid return line to the pump to the
regulator’s outlet.
4. Flush and test the entire system.
F
IG
. 4., F
IG
. 5., and F
IG
. 6. show possible configurations
for installing a system. They do not depict actual system
designs. Consult your Graco distributor for assistance in
designing a system that meets your specific require-
ments.
Fig. 4. Low pressure, non-circulating system, mechanical fluid regulator
Key
A
B
C
DE
F
Fluid
Air to gun
Air to pump
Y
B
TI1767A
A Air line filter
B Bleed-type air shut-off valve
C Air regulator for pump and gun
DPump
E Fluid regulator
F Air spray gun
Y Pump ground wire