The Air Cap Test must be performed before use on a spray gun within which pressure range?

The Air Cap Test must be performed before use on a spray gun within which pressure range?

• A. 0.1-10 psi
• B. 1-20 psi
• C. 0.5-5 psi
• D. 10-50 psi

Answer: (A)

Testing the air cap at a very low pressure is about confirming proper seating and the absence of leaks without creating atomization or safety hazards. The recommended test pressure is a low range, just enough to reveal leaks or loose fittings, typically up to about ten psi. This keeps the check safe and effective: it shows whether the air cap seals and gaskets are in good condition while avoiding the risks that come with applying the higher pressures used for actual spraying. Using higher pressures for the test isn’t necessary and can be unsafe, potentially causing cap ejection, sudden air jets, or fluid leaks.

Testing the air cap at a very low pressure is about confirming proper seating and the absence of leaks without creating atomization or safety hazards. The recommended test pressure is a low range, just enough to reveal leaks or loose fittings, typically up to about ten psi. This keeps the check safe and effective: it shows whether the air cap seals and gaskets are in good condition while avoiding the risks that come with applying the higher pressures used for actual spraying. Using higher pressures for the test isn’t necessary and can be unsafe, potentially causing cap ejection, sudden air jets, or fluid leaks.