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Offlinexhooliganx
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flowhood blower strength
    #7116994 - 07/01/07 10:46 PM (16 years, 6 months ago)

i'm going to be building a 24x36 flowhood. any one have a suggestion with what kind of horse power the blower should be? I know how to calculate cfm with static pressure and all that good stuff, but all of those numbers don't really mean much if you can't find a rating for the blower.


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Offlinexhooliganx
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Re: flowhood blower strength [Re: xhooliganx]
    #7118511 - 07/02/07 10:15 AM (16 years, 6 months ago)

any old hands have a suggestion for this?


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InvisibleRoadkillM
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Re: flowhood blower strength [Re: xhooliganx]
    #7118525 - 07/02/07 10:18 AM (16 years, 6 months ago)

Quote:

xhooliganx said:

any old hands have a suggestion for this?




yeah...

Contact Anno or RR about this.

I'm sure they would be glad to help you out.



tc


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InvisibleBrainiac
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Re: flowhood blower strength [Re: xhooliganx]
    #7118529 - 07/02/07 10:20 AM (16 years, 6 months ago)

For a 24 x 36 inch HEPA filter. you will need a 1,092 CFM at .8" static pressure (60Hz). Draws 8.6 amps @115V
From FP's website.


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OfflineAnnoA
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Re: flowhood blower strength [Re: xhooliganx]
    #7118531 - 07/02/07 10:20 AM (16 years, 6 months ago)

>all of those numbers don't really mean much if you can't find a rating for the blower

Then you should take a blower that comes with a chart and where you CAN match it to the desired filter.


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OfflineAnnoA
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Re: flowhood blower strength [Re: Brainiac]
    #7118541 - 07/02/07 10:23 AM (16 years, 6 months ago)

Quote:

Brainiac said:
For a 24 x 36 inch HEPA filter. you will need a 1,092 CFM at .8" static pressure (60Hz). Draws 8.6 amps @115V
From FP's website.




This is useless information, as it will only be valid for one particular type of a 24 x 36 inch HEPA filter. A different built, with the same 24 x 36 dimensions but a different thickness and material will have a different static pressure.

Thus, see above.


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InvisibleBrainiac
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Re: flowhood blower strength [Re: Anno]
    #7118544 - 07/02/07 10:24 AM (16 years, 6 months ago)

I tried.


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Offlinexhooliganx
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Re: flowhood blower strength [Re: Anno]
    #7118562 - 07/02/07 10:28 AM (16 years, 6 months ago)

well I was hoping I might be able to run a 1/3 or 1/2 hp blower bought used on ebay and tune the air pressure with a variable speed dial built into it. Would that work?


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OfflineAnnoA
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Re: flowhood blower strength [Re: xhooliganx]
    #7118588 - 07/02/07 10:35 AM (16 years, 6 months ago)

Quote:

well I was hoping I might be able to run a 1/3 or 1/2 hp blower bought used on ebay and tune the air pressure with a variable speed dial built into it. Would that work?




That would work, if the blower is powerful enough.
A 1/2 hp blower might be enough for your HEPA filter.


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