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spray booth venting

updated fri 18 feb 00

 

gambaru on wed 16 feb 00

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We are in the process of rebuilding a spray booth. It would be more =
convenient
to have the exhaust out the top of the booth opposed to most plans I have =
seen
showing out the back. Is there a reason that =22out the back=22 is =
preferable.
Some physics of air movement etc ? Would modify plans to exhaust out the =
back
if there are compelling reasons for doing so. Thanks a bunch. Marj.B.

vince pitelka on thu 17 feb 00

We are in the process of rebuilding a spray booth. It would be more
convenient
to have the exhaust out the top of the booth opposed to most plans I have
seen
showing out the back. Is there a reason that "out the back" is preferable.
Some physics of air movement etc ? Would modify plans to exhaust out the
back
if there are compelling reasons for doing so. Thanks a bunch. Marj.B.

Marj -
It only makes sense to have the exhaust out the back because that is the
direction the overspray is headed. Place your filters (furnace filters work
well) on the front of a small boxed-in area, with a plywood baffle spaced
three or four inches out in front of the filters, so that the air is drawn
around the baffle. That way, most of the overspray settles on the baffle
and the filters last longer. Place your fan in the roof of the spraybooth
opening into the box behind the filter. Be sure to use a vane-type blower
or fan and not a squirrel-cage blower. They tend to clog quickly.
Best wishes -
- Vince

Vince Pitelka
Home - vpitelka@dekalb.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166