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How does a paint sprayer work

How does a paint sprayer work

How does a paint sprayer work?

  1. Basic operation

The fundamental principle of a paint sprayer is that of it’s atomization. The liquid split into small drops by energy supply. The valve installed in the paint sprayer lets the air flow out around the paint, creating a fine mist that applies color particles to the surface. The larger the difference between the pressure of the exiting air and that of the gas, the better the droplets become. However, in this case also the spray mist (so-called. Over spray ) is stronger.

  1. Transport of liquid

In addition to the pressure supply, there are different approaches to the provision of the liquid (i.e., the paint or varnish) to the nozzle head:

  • Gravity feed:Here the container with the liquid is attached to the nozzle so that the hydration takes to paint gun using the Schwerkaft
  • Suction cup:with this principle, the liquid is sucked through a simple vacuum tube from the container, the liquid must not be too viscous thereby.
  • Pressure tank:if thicker materials to be atomized, the liquid container can be pressurized to convey the ink or paint to the valve.
  1. Functionality

Three different types of sprayers are to be distinguished: HVLP, LVLP, and Airless, of which the first two are to be referred to as compressed air sprayers. The following table gives an overview of the details of the individual types of construction.

Importancehigh volume low pressure; Air inlet pressure is reduced, resulting in little spray mistlow volume low pressure; Further development of the HLVP processAirless; The pressure on the liquid is not developed by gas but hydraulically
0.25-0.7 bar
0.25-0.7 bar
50 – 250 bar
Air Consumption
Approx. 380 l / min
Approx. 250 l / min
No one
Characteristics·         Hardly any mist

·         Slightly oblique spray pattern

·         Optimum paint finish

·         Hardly any mist

·         Optimum paint finish

·         Very energy efficient

·         Also for thicker colors

·         Low paint consumption

·         Ideal for large areas

In most cases, a fine spray system for private users is a HVLP sprayer.
  1. Traditional Paint sprayer

There is quite a debate about which variation of the color order is the right one. While some of the “conventional” variant swarm with brush and roller, others would never want to paint again since the first use of a paint sprayer. Of course, as with every other subject, there are pros and cons. We will list a few points below.


  • Fast and effective ink application,
  • Uniform result,
  • No drop formation,
  • Reduced risk of dribbling,
  • No constant bending over to the paint bucket,
  • Comfortable handling.


  • Careful preparation such as masking is required,
  • Protective clothing recommended,
  • Only suitable for thin liquid color.

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