Jump to content
Thad

Help with spray booth fan and filter.

Recommended Posts

I use automotive paints and I spray my clear coat, so keep that in mind.

I was told by a maker of spray booths that I would need a fan that was capable of doing 750 cfm. Where can I find a fan/blower for this?

Also what filter material do you guys use in your booth?

Link to comment
Share on other sites

Iam in the commercial paint industry the size of fan that you use needs to fit the size of your area.750cfm is fine but the area would need to small.A company called Northland Tools sells small industrail fans from 12 to 16 inches,as for the filter material good ole blue furnace filters work great.

Edited by plt
Link to comment
Share on other sites

If your fan is MOVING 750 cfm, there's no need for an explosion proof motor. The concentration of the fumes will never get high enough to cause a problem. But just because it's rated for 750 doesn't mean it'll move 750. The hoses greatly restrict airflow, even big hoses, so keep that in mind. If you're building a booth and not just a fan to clear an area, the fan only needs to move enough air to keep the fumes from coming back out of the booth as you spray. If you can feela slight airflow in the window of the booth, you're most likely fine. And if you still get fumes out, try making the window smaller. What's important is the airflow in the window.

Try a local HVAC guy.......if they have an old furnace that they replaced, they'll probably give you the blower for free. That's what I used and it works great.

Building a Spray Paint Booth for painting fish carvings.

I did need to filter it though, as the dick nite's clear didn't dry before hitting the fan. As an afterthought, I just built a frame for the filter over each air intake and used furnace filters.

Link to comment
Share on other sites

We must have a member with HVAC knowledge. Could someone post how to calculate cfm's, tube diameters and any thing else necessary.

True, a little knowledge is a dangerous thing, but surely it will be better than no knowledge. Lets face it, members are just going to wing it anyway.

If someone is going to take on this task, it would be better in a new thread, named properly, so that the information will be easy to find.

Dave

Edited by Vodkaman
Link to comment
Share on other sites

i don't know if this will help u but i install hvac pipe ...

and mostly your cfm is 4'' 50 cfm

5'' 75 cfm

6'' 100cfm

7'' 150cfm

8'' 200cfm

10'' 400cfm or a ton of air

:?

If I remember right these figures are good for up to a 30 foot run of pipe. Subtract 10 feet for any 90 degree bend put into the pipe. After that your CFMs drop significantly. (keep in mind I am trying to remember back 4 to 5 years since the last time I designed a duct system. I hoe I am remembering right.)

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...


×
×
  • Create New...
Top