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12 310692D
7. To achieve a narrow spray pattern, turn pattern
adjustment valve (25) clockwise.
8. For HVLP only: To measure the aircap atomizing
pressures, use the accessory aircap verification kit.
See Accessories on page 30.
9. To improve atomization, reduce the fluid flow rate.
Increasing the air pressure can improve atomization
but may result in poor Transfer Efficiency (TE) or
non-compliant operation.
F
IG. 10
ti4841a
(Open)
(Close)
25
• For gravity feed HVLP guns, at 29 psi (200 kPa,
2.0 bar) gun inlet air pressure, the pressure at
the aircap will be 10 psi (70 kpa, 0.7 bar).
• For pressre feed HVLP guns, at 40 psi (280
kPa, 2.8 bar) gun inlet air pressure, the pres-
sure at the air cap will be approximately 10 psi
(70 kpa, 0.7 bar).
• For HVLP guns, local laws may limit the maxi-
mum automatic air pressure to 10 psi (70 kPa,
0.7 bar) at the air cap for HVLP compliance.
The accessory Air Cap Verification Kit is avail-
able to measure the atomizing pressure at the
air cap. See Accessories on page 30.
• For Compliant guns, to maintain compliant
operation (TE equal to HVLP) the gun inlet
pressure must not exceed 29 psi.