HLVP Spray Guns
Although there are many different sizes and configurations for spray guns , generally there are only two types of HVLP Spray guns: compressed air and turbine.
Turbine
In this first type of hvlp spray gun, an air turbine supplies the high volume low pressure air through a large circular hose to the gun. Sometime the hose can hinder the functionality of the gun.
One of the drawbacks to the turbine HVLP spray is it is more expensive than buying the kind that work with an air compressor. You will also use more cans of paint when painting a large project, which means you will spend more time painting. However, the finish you will get may be well worth the price and using a turbine is much cleaner than the high pressure air hvlp.
Since many people already own an air compressor, it easier for the manufacturer to sell the stand alone spray gun at a cheaper price. It is very important to pay attention to the gun’s specification before purchasing it. Your air compressor must have the capability of generating a specific cubic feet of air per minute (CFM). This measurement varies based on the model of the gun.
High Pressure Air
The second type of HVLP spray gun, uses high pressure air usally from an air compressor. If you are wondering how this is different from conventional paint sprayers, the high pressure air is converted to low pressure by flowing through orifices on the gun. In order to maintain pattern shaping and atomization the gun needs low pressure. There are controls that allow the user to adjust the air flow. The quaility of the paint atomization can be effected by a decrease in the air pressure whenever the pattern air flow is increased.