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In this section you can find some answers
to the questions the Rigo customer care service is most frequently
asked on products, application techniques, advantages and capacity.
Choose the most interesting question: |
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1) Why taking a HVLP system
into account?
At least for three reasons:
- Higher transfer efficiency. You will use a smaller varnish
quantity compared to a traditional system.
- Limited overspray. Pressure is so low that the paint is
gently applied without bouncing off on the surface, thus
avoiding any product suspension in the air.
- No humidity in the device. The heat developed by air
compression in the fans can eliminate humidity. No device
is required to eliminate humidity or reduce its quantity.
This results in a better finishing and a corresponding cost
reduction.
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2) I have never spray painted
so far. How long does it take to learn how to use a HVLP system?
Beginners do not need to get out of any bad habit, just as it
occurs for expert painters. If you are accustomed to using high
pressure guns, it will take some time for you to get accustomed
to the HVLP system because the technique is a bit different.
It is recommended to exercise with the material you intend to
use for about an hour so that you get familiar with the various
techniques described in the manual. For any question please
dial the customer care number. |
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3) Advantages and disadvantages
of the heat produced by HVLP turbines?
The reason why turbines deliver hot air can be found out in
their structure. Fans rotate at 18/22,000 rpm. in a motor. This
will increase the speed rate of the air molecules coming into
contact one with the other, thus giving origin to heat as a
result of friction and compression. Dry air is also produced
as a result of humidity evaporation.
This phenomenon helps avoiding any halo that could be seen only
once the product has dried. No dehumidifier is required to dry
air just as in the case of traditional compressors. The disadvantage
of this heat could be represented by the tendency to let evaporate
also the products, such as the diluents, which are mixed to
the paint in order to facilitate the coming out of the varnish
to the surface. If there is not enough diluent in the material
to be sprayed, the drying process will cause the so called "orange
skin" effect. This situation is solved by adding more diluent
in order to balance the loss caused by the heat produced by
the turbine.
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4) Why should I use a turbine if
I can purchase a HVLP conversion spray gun?
You would still have humidity and oil leakages out of the compressor
and you would not have the efficiency, practicality and flexibility
a turbine could offer to you. A conversion spray gun enables
you to paint at low pressures, but it is driven by a compressor
that would cause many problems you would not have if you used
a turbine. |
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5) What does "STAGE"
of a turbine mean?
The stage of a turbine can be compared to a fan moving an air
flow. When speed increases, the air flow is also increasing.
Let us assume that the fan speed is at the maximum. How can
we further increase the flow? By adding a second fan near the
first one so that it can work in sequence with it, thus doubling
the flow. The more stages you add, the more air flow is developed. |
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6) What are the advantages of a three-stage
turbine compared to a two-stage one?
A 3-stage turbine can deliver a higher pressure. As a matter
of fact, the increase in bar/psi will break the particles of
the covering product into smaller drops, thus achieving a better
and more precise finish. The advantage also results in the possibility
of spraying thicker products with a correct dilution and without
any waste. Moreover, you can move more rapidly on a surface
compared to a turbine with a lower pressure since paint can
flow better. A 2-stage turbine requires more know-how and experience
in order to achieve the same results of a 3-stage turbine. |
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7) When shuold the filters of
a turbine be replaced?
You shall always check the filters of a turbine before starting
any work in order to achieve maximum efficiency.
If they are dirty, they shall be replaced. |
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