I have a spray gun that needs 4.4 cfm and 60 psi to work. My compressor is only 2.6 cfm but 135psi with a 6 gallon tank and a 2hp engine. Will this setup work to spray paint?
Use this spray gun with the air compressor
compressorsprayingspraypainting
Related Solutions
Paint sprayers have a pretty low PSI requirement. I'd be more concerned about the CFM (Cubic feet per minute) rating of your compressor. That would indicate whether it can compress the air fast enough to keep up with the sprayer.
If the metal button that you refer to is this one:
Best guess is that you press this when engaging the end of the gun onto and when disengaging the gun from the valve stem. When the gun is fully pressed onto the valve stem letting go of this button helps clamp the tip of the gun onto the threaded end of the valve stem.
Again this is an educated guess because I've not seen your gun first hand. You could probably look at the tip of the gun assembly and toggle the metal tab back and forth and see right away what it does.
Edit
In looking more closely at your picture it appears that the tip of the gun can have various ends slid into it and this lever is designed to hold the tip in place. Pressing the tab (button) releases the catch and allows removal of the tip.
When I refer to the tips I mean one of these from the kit:
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Best Answer
Sounds like you're using an automotive sprayer. You need to set your compressor's regulator to 60 PSI max or the can may explode. If the compressor doesn't have an adjustable regulator, you'll need to install one.