Pressure pots use compressed air to feed a pressure pot which will force feed coating to a spray gun. You can use a pressure pot with an HVLP, conventional, or LVMP spray gun. Each type of spray gun has its benefits and drawbacks as well which you can learn more about here.

Pressure pots offer a variety of features as options including multiple regulators, agitation, and even multiple outlets for multiple spray guns. Additionally, pressure pots can be designed to allow for heating of your coating and for other specialty needs. A pressure pot will not supply as high volume of fluid at a given time. However, a pressure pot will allow for finer control of the volume of paint you are supplying a spray gun, the air pressure you are using to atomize a coating, and the pressure that you are supplying a coating at.

In this brief article, we’ll cover the way of control and balance a pressure pot.

Pressure Pot Adjustment

1. Set the fluid regulator to 10psi
2. Shut off the atomization air to the spray gun
3. Pull trigger on spray gun and flow liquid into a measuring cup for 15 seconds. Multiply fluid ounces in the measuring cup by 4 to determine fluid ounces per minute.
4. Fluid ounces per minute should be between 10-12oz which is equal to 2.5-3oz in 15 seconds (universal paint company recommendations)
5. Raise or lower fluid pressure to achieve desired fluid flow. When lowering pressure make sure to relieve pressure on pot before retesting
6. Set the air regulator to deliver 30-45psi of air pressure for conventional/high efficiency spray guns or to deliver max psi for HVLP spray guns
7. Spray a horizontal test pattern and balance the spray pattern 

8.  Spray a fast pass to determine particle size  

9.  Adjust air and fluid to even out distribution when spraying a pass

Final Adjustment

Spray a part, piece or vehicle to see if: 

a. Proper finish quality can be met 

b. Production can be maintained 

c. The settings match the painter’s spray tempo