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PhytoExtractum Shop: Maeng Da Thai Kratom Leaf Powder

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Offlinefractaldill
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Registered: 08/31/13
Posts: 909
Last seen: 9 years, 9 months
Flow Hood
    #19250204 - 12/09/13 01:39 PM (10 years, 1 month ago)



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OfflineAnarchoV
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Registered: 09/01/13
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Re: Flow Hood [Re: fractaldill]
    #19250246 - 12/09/13 01:49 PM (10 years, 1 month ago)

The fan must be able to push the required CFMs at .80-1.0" of static pressure...depending on your pre-filter and filter. In this case, your filter is 2'x2' or 4 sq ft. This means you would need 400cfm at a static pressure of .8-1.0". Unfortunately, I don't think this fan will work. The CFM ratings are usually listed at 0" of static pressure. As you increase static pressure, the CFMs will decrease.

I couldn't find any static pressure specs for the blower you linked though. It just states that it works at high static pressure.

This site helped me a bunch. Several people reference it on the shroomery when looking to build a flow hood-
http://www.fungifun.org/English/Flowhood


Edited by AnarchoV (12/09/13 01:52 PM)


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Offlinefractaldill
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Re: Flow Hood [Re: AnarchoV]
    #19250383 - 12/09/13 02:18 PM (10 years, 1 month ago)

thats what ive been looking at :/


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OfflineAnarchoV
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Re: Flow Hood [Re: fractaldill]
    #19250525 - 12/09/13 02:53 PM (10 years, 1 month ago)

I know that that blower probably can't even push air at 1" of static pressure. There is a similar one by Dayton on Grainger and it is only rated to .6" Static Pressure. At that pressure, it only produces 125 CFM. http://www.grainger.com/product/DAYTON-Blower-6FHY0?s_pp=false


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Offlinefractaldill
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Re: Flow Hood [Re: AnarchoV]
    #19250640 - 12/09/13 03:17 PM (10 years, 1 month ago)

oh wow... can you recommend one to me? i kinda like that hepa size. It needs 1.1" at 400cfm, by my math.


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Offlinefractaldill
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Re: Flow Hood [Re: AnarchoV]
    #19250794 - 12/09/13 03:42 PM (10 years, 1 month ago)



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OfflineAnarchoV
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Re: Flow Hood [Re: fractaldill]
    #19259293 - 12/11/13 09:27 AM (10 years, 1 month ago)

I don't see any specs on it, but at that price I doubt it could push enough air. Try to find fans with static pressure specs or call the manufacturer. Grainger is a good place to start for specs at various static pressures. Also, search the shroomery forums. You need 400 cfms at the static pressure for your prefilter and HEPA. Probably around 1.2" of static pressure.


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OfflineKalypto
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Re: Flow Hood [Re: AnarchoV]
    #19259301 - 12/11/13 09:30 AM (10 years, 1 month ago)

If you find one post it please , I have been looking for a long time to find one that fits my needs


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OfflineKalypto
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Re: Flow Hood [Re: Kalypto]
    #19259330 - 12/11/13 09:42 AM (10 years, 1 month ago)

would 2 of these work
http://www.grainger.com/product/DAYTON-PSC-Blower-12G807?functionCode=P2IDP2PCP
I dont know if you can just add static pressure


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Offlinefractaldill
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Re: Flow Hood [Re: Kalypto]
    #19259901 - 12/11/13 12:27 PM (10 years, 1 month ago)

been doing my research. Im going to go with a 24x12x6 in HEPA. the blower you listed is actually the one im going to get. did some math and at the max setting it will be blowing aproximately 220cfm @1.2" and 211cfm at the lowest setting at a sp of 1, (Not sure if the filter is .8" or 1"). the blower will be way too expensive for me if i go 2ftx2ft.


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