Paint spraying with low pressure

These paint spraying methods use compressed air to automize the paint. A needle valve is used to make fine adjustments to the paint flow. When spraying,the trigger of the gun controls the needle valve. When the trigger of the gun is pulled, the compressed air is released first, followed by the paint. Once the paint has passed through the paint nozzle and air cap, it is atomized into very tiny droplets. The atomization of the paint is controlled by regulating the flow of air or paint. Fan pattern can be changed from round to flat by using the fan width control on the gun to control the supply of compressed air to the horn of the air cap.

Three basic methods are used to feed paint to the nozzle, Gravity,Pressure and Suction feed which are suitable for different application areas.