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SHAPING AIRS
Shaping air is used to shape the spray pattern.
The lower the pressure, the wider the pattern, and
conversely, higher pressures result in narrower
patterns. Shaping air does not help atomize the
material, but does assist in the penetration of
atomized particles into cavity areas. Shaping
air should be kept at a minimum consistent with
coating requirements. Excessive shaping air will
cause some atomized particles to blow by the
target not allowing full "wrap," or paint particles
to bounce back onto the atomizer.
Note: When Mono Flex shape air configuration
is used, one of the inputs on the atomizer body
will be required to be plugged. Either input can
be used for Mono Flex (SAI or SAO).
Dual Flex Shaping Air Configuration
Both inputs are required. Pattern adjustment:
Increasing the inner air will make the pattern
smaller. Increasing the outer air will make the
pattern larger.
FLUID FLOW RATE
CONTROL
Externally mounted fluid regulators or gear pumps
are typically used to control fluid flow.
The atomizer assembly is equipped with valves
which are pneumatically operated to direct the
flow of paint to either the feed tube or dump line
FLUID TIP STREAM AND
TIP STYLE USE
As the picture on the right shows, the fluid stream
should be straight and steady. It is best to start
out with the smallest tip to achieve the desired
fluid flow rate. Either the Straight or the Industrial
tip can be used with any 30mm or 65mm bell cup.
LN-9282-14
Determining which type of tip style to use is de-
pendent on the several factors, such as viscosity,
flow rate, type of equipment supplying the paint.
As couple of suggestions follow:
Straight Fluid tip:
With positive shutoff devices like a microvalve
with all ranges of fluid flow rates and viscosities.
Industrial Fluid tip:
With pilot operated fluid regulators with high vis-
cosities and low fluid flow rates.
Preferred
Avoid
Aerobell 268 - Operation
34
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