Understand Pressure Relief and Cup Options
At 2:33 in
How to Set Up an HVLP Spray Gun for Furniture Refinishing: A Step-by-Step Guide
What happens here
Tools and materials
- Apollo 7700 Atomizer Spray Gun Apollo
- Gravity-feed Cup Apollo
- Siphon-feed Cup Apollo
What they say
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What they say
(2,496 characters)cap right here I've got a little feature right here this is going to be the pressure uh relief valve right here so when I'm done spraying you know there's pressure in here 7.5 PSI pressure I don't want to just release this and let the pressure come out through there I'm going to turn this little valve it's going to release the pressure out through the valve and then I can open up the gun right there now there are multiple options you can use this is what we call a siphon feed Cup right here this is what I predominantly use or you can use a gravity feed Cup right here Gravity meaning grabby is what's taken the product and sending it to your gun with pressure coming up through the top of the gun siphon it siphoning it up from the bottom from pressure being put into the gun coming to your tip it's really personal preference you know with the gravity feed um cup up top right here you can have really tiny amounts of material that to um spray with it so if you got something you're spraying really really small and you don't need a lot of material one of the advantages is you don't need a lot of material to get this thing spraying just tiny bits if you're spraying inside of cabinets and stuff that gives you uh a smaller profile to be able to spray inside of like the cabinets or inside of drawers Etc the this is a larger profile right there but this with a gravity feed it kind of blocks my line of sight and when I'm spraying and something that's kind of one of the um disadvantages that I don't like I predominantly use a siphon Fed Cup this is my setup right here that I use right here it does have if you're curious what this thing is so this is the air comes in this is sending air down through this oneway valve into my cup that's actually what's pressurizing the cup and sending material up through the intake tube of the um gun itself if you begin to spray and start to tilt this thing you'll we sideways where the paint could actually go up inside you know this thing and the valve's not working correctly you can end up sucking you know paint up and there it's happened to me you know multiple times you could pull this off clean it out the paint if it dries in there that it'll you'll mess up that one way valve I always have extras of of these in case paint gets up inside there I just switch it out you know really quick so there's some of the features about the gun now when it comes to uh the needle nozzle and cap the needle when you're pulling the trigger there's a…
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