Air Supply - Graco ProMix 2KE Operation

Air Supply

Requirements
• Compressed air supply pressure: 75-100 psi
(517-700 kPa, 5.2-7 bar).
• Air hoses: use grounded hoses that are correctly
sized for your system.
Trapped air can cause a pump or dispense valve to
cycle unexpectedly, which could result in serious
injury from splashing or moving parts. Use bleed-type
shutoff valves.
• Air regulator and bleed-type shutoff valve:
include in each air line to fluid supply equipment.
Install an additional shutoff valve upstream of all air
line accessories to isolate them for servicing.
If using a Graco electrostatic PRO
valve must be installed in the gun air line to shutoff
the atomizing and turbine air to the gun. Contact your
Graco distributor for information on air shutoff valves
for electrostatic applications.
• Air line filter: a 10 micron or better air filter is rec-
ommended to filter oil and water out of the air supply
and help avoid paint contamination and clogged
solenoids.
Air Connections
See the System Pneumatic Schematic on page 52
(hazardous location) or page 53 (non-hazardous loca-
tion).
1. Tighten all ProMix 2KE system air and fluid line con-
nections as they may have loosened during ship-
ment.
3A0868A
™
Gun, a shutoff
2. Connect the main air supply line to the main air inlet.
This air line supplies the solenoids, valves, and
pumps. See F . 3.
IG
Main Air
Inlet
F . 3. Air Supply Inlet
IG
3. For each gun in the system, connect a separate
clean air supply line to the air inlet of the air flow
switch. This air supplies gun atomizing air. The air
flow switch detects air flow to the gun and signals
the controller when the gun is being triggered.
Atomizing
air outlets
Atomizing
air inlets
F . 4. Connect atomizing air
IG
NOTE: See Dimensions and Mounting on page 58 for
additional air supply/consumption information.
Installation
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ti15709a
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