How do tell what i have HVLP

HVLP /Low Pressure (HVLP High Volumn Low Pressure) pistols use a pressure of 1,2 to 1,5 bar (sometimes as low as 0.7 bar) (i do not know what it is in psi off hand) and generaly use a jet of 1,0 to 2,5 mm depinding on the type of material you are spaying

High Pressure runs about 1,7 to 7 o bar and a jet size of 0,8 to 2,5 mm

So if you look at the rating on the gun this should help

-- Nicholas, Journeyman Cabinetmaker, Partenkirchen, Germany

forgot to mention usually the rating is stamped in to the side of the grip of the gun somewhere. The jet size is stamped on the Jet, so you have to unscrew the nozzle and check that out too, if you want to identify what sort of gun you have.

-- Nicholas, Journeyman Cabinetmaker, Partenkirchen, Germany

To update what Waldschrat said- 1 bar = 14.7 psi.

If you still have the owners manual, it may tell you what pressure to use or it might be stamped on the side.

The other thing to think about is your compressor ratings. Older style spray guns (not HVLP) could work on 5 cfm or higher compressors but, as I understand it, the newer HVLP guns should have a fairly high CFM compressor.

thanks guys
went to shop and checked on the gun
After i got my daughter out there to read it for me
it said no more that 50 psi so i am thinking its a low pressure gun
I am having so much trouble trying to balance the air and paint
cant seem to get an constant even flow, by the time i do the
compressor is below 30 psi and i have to turn it off. I don’t ever
think i will get this painted.
My paint latex is mixed with with 40 % water.

-- With God's help all things are possible- even woodworking

I don’t think you have an HVLP gun. you probably are going to have to run about 25 to 30 lbs air pressure to push the paint through. Another thing that will make a big difference is the size of the nozzle, needle and cap.
Can you find the brand name of the gun or any numbers on it?
40% mix on the paint is a lot, it should be spraying, I’m also thinking your nozzle size is to small for latex paint.

I believe its Husky ?
Can you buy other nozzle sizes

-- With God's help all things are possible- even woodworking

Husky is a pretty generic spray gun, It would be as cheap probably to buy another gun before changing the nozzle. Normally the needle, nozzle and cap are all matched to the same number. I’m not real familiar with Husky but let’s see how you are adjusting the gun. There are 2 knobs at the top of the handle. The top one controls the fan width and the bottom bigger one controls the amount of paint. Unplug the air, Back the lower bigger one all the way out until the trigger quits moving back. Pull the trigger and turn the knob in until you feel pressure against the trigger. This is the max. volume of paint you can spray. Turn you air pressure up to about 40 lbs and give it a try just to see if paint is coming out. Also you want to make sure that the little holes in the spray cap are open and clean and that the breather hole in the gun cap is open. If it can’t get air in it can’t get paint out.

PS, I didn’t ask, but are you getting any paint out now?
Is this a used gun and is it clean?, you may have to take the nozzle off and pull the needle out and make sure they are clean.

thanks
So much for taking your time with this
Yes i am getting some paint but not constant or steady
When you say clean how clean
I mean I can blow air through the needle And i have washed it out
Last time i used this i used oil paint
and know i cant spent any more money now ( Not working )
In fact I am hoping to make some money with this chair when i am done
thank you again for walking through this with me. i will try what you said
tomorrow and let you know

Russ

-- With God's help all things are possible- even woodworking

Your Welcome, I just hope we can get this spraying for you.
Here’s a couple things to try. Fill the cup with water and see if it sprays good with water only. If it sprays, the problem still could be the paint to thick. Take a little of the paint and try thinning it some more, just do enough for a test though. If this doesn’t help you may have to take apart a few things to make sure there is no dried paint blocking any orifices. Take the spray cap off the front. Take the needle out of the back, and then take the Nozzle off the front. now clean the needle, poke something through the little holes in the spray cap, and clean the inside of the nozzle out, may need to soak this in some lacquer thinner. Also look at the gun where the nozzle screws in and make sure no dried paint is in there. These inside areas of the gun have to be very clean to work properly. You may need a round spiral wire brush to run up the pick up tube and behind the nozzle area. Be sure to check your breather hole in the plate (the part that your gun is attached to ) that goes onto the cup.

thanks again
the last time i used it was not cleaned right
cant take apart
goinna haft wait to buy anew one

-- With God's help all things are possible- even woodworking

Sorry to hear that, but keep trying,
Good luck!

I bought a HPLV gun from Rockler for under 100 dollars. It is a completely self contained unit (gun and blower). It of course is not the best thing out there, all plastic, but I am really happy with it. I sprayed latex with no problems. and poly was very good.
Tom