Owner`s manual

Two types of HVLP systems dominate the painting contractor market:
portable turbines and direct hook-up guns. The two systems use completely
different air sources, but atomize material in similar manners.
Portable Turbine
Most commonly found in the painting contractor market for portable
applications, this type of HVLP system uses a centrifugal blower motor as
the air source.
Direct Hook-up Guns
Direct hook-up guns require an air compressor as the air source. The guns
will generally require from 10-25 CFM. These guns are primarily used in
stationary booth applications.
Direct Hook-up High Flow Regulator Guns
High flow regulator guns utilize an attached, high flow regulator, which
increases air flow and reduces air pressure to achieve HVLP results.
Regulators deliver a more precise pressure setting than direct hook-up guns
because the regulator is adjustable right at the gun.
Conventional air spray atomizes material at high air pressure (35 to 80 PSI)
and moderates air flow. The negative aspect of conventional air spray is
excessive overspray and bounceback that results from high air pressure.
Conventional air spray creates excessive turbulence at the air cap, which
contributes to excess overspray. Bounceback results from the material being
discharged from the nozzle, moving to the substrate at a very high velocity
and bouncing off the substrate. The advantage of this method is ultra-fine
atomization and a high rate of application. Conventional systems are used
on finishing work ranging in size from small jobs to production lines. They
generally are found in stationary applications. Required components are an
air compressor, air hose and conventional spray gun.
Airless sprayers atomize coatings by forcing the paint through a small tip
opening at very high fluid pressure. Working fluid pressures range from
1200 to 3600 PSI. Airless spray transfer efficiency is higher than conventional
air spray (see chart on page 1), and offers the ability to spray the widest
variety of coatings.
Airless sprayers typically are portable with gas, electric and air operated
available. The primary application is production work. These systems are
capable of covering large areas in a short amount of time. When used
properly–correct fluid pressure, hose length and tip size–airless systems
handle the widest range of applications. As a result, it is rare to find a
commercial painting contractor who does not own or need airless
spray equipment.
Spraying Methods
HVLP
Conventional Air Spray
Airless Sprayers
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