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Shop: Unfolding Nature Unfolding Nature: Being in the Implicate Order   PhytoExtractum Maeng Da Thai Kratom Leaf Powder

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Offlinehamloaf
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Re: Flow Hood [Re: bodhisatta]
    #24432724 - 06/24/17 07:59 PM (6 years, 7 months ago)

Quote:

bodhisatta said:
the plenum doesn't need a special design it just has to be big enough to put even pressure over the back of the filter.

more people have home made flow hoods than bought ones on this site :shrug:



:whathesaid:

The plenum needed to be between 12-24 inches long in order to build static pressure.  I went with 24 inches.



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Offlinehamloaf
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Re: Flow Hood [Re: c10h12n2o]
    #24432781 - 06/24/17 08:22 PM (6 years, 7 months ago)

Quote:

c10h12n2o said:
it depends on the area and depth of the filter in question

the point is to provide enough space to equalize the pressure over the filter face to provide laminar flow



How deep of a plenum do you think would be good for a 2x4 foot hepa with pre filters?


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Offlinehamloaf
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Re: Flow Hood [Re: Crispykoot]
    #24433817 - 06/25/17 08:35 AM (6 years, 7 months ago)

Mine has that weather stripping on the side that faces the lab too.  I have never heard of weather stripping going along the furring.  :shrug:


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