 Paint gun air pressure question |
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| Rav914 |
 Oct 8 2009, 09:29 PM
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#1
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All-weather fan  Group: Members Posts: 738 Joined: 15-April 07 From: WA Member No.: 7,669 Region Association: None  |
Quick question
When the recommended air pressure for the gun (Devilbiss GFG) is 30psi, is that: a. Pressure at the gun - static or, b. Pressure at the gun with the trigger down? I've noticed in order to get 30 psi with the trigger down, static pressure is around 45psi. Thanks, Nate |
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Replies(1 - 5)
| jmill |
Oct 8 2009, 10:44 PM
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#2
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Green Hornet Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest |
I set it with the trigger down. The best air pressure will depend on the thickness of the paint. Adjust up or down until it flows right.
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| Cano |
Oct 9 2009, 08:34 AM
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#3
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Member Group: Members Posts: 110 Joined: 29-September 04 From: Goshen, KY Member No.: 2,854 Region Association: None |
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| Rav914 |
Oct 9 2009, 08:49 AM
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#4
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All-weather fan Group: Members Posts: 738 Joined: 15-April 07 From: WA Member No.: 7,669 Region Association: None |
Then it's settled. Thanks.
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| toon1 |
Oct 9 2009, 09:11 AM
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#5
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Senior Member Group: Members Posts: 1,849 Joined: 29-October 05 From: tracy,ca Member No.: 5,022 |
Yep set it with the trigger down. I am using a small compressor and there is a 15psi drop when the trigger is depressed.
Also, CFM is one of the most important ratings when using a spray gun. |
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| rick 918-S |
Oct 9 2009, 11:42 PM
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#6
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Hey nice rack! -Celette Group: Members Posts: 20,462 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region 
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Sipon feed guns require about 19cfm in volume to keep a consistant pattern. If your running a small compressor you will really need to become one with your paint gun. You will need to use all your senses to keep any consistancy. BTW: I never look at the gauge. I test the gun and watch the pattern and listen to the sound of the air though the fluid tip. (IMG:style_emoticons/default/ninja.gif)
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