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OfflineFGL
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blower for my HEPA filter, PLEASE HELP!!!
    #4770142 - 10/07/05 05:55 PM (15 years, 3 months ago)

I recently bought a HEPA filter with these characteristics:

-Filter classification: H14 to EN1822
-Dimensions: 610x610x69mm
-Velocity: 0.45 m/s
-Resistance: 125 Pa
-Efficiency: 99.995%

And my blower have these:


Circular duct fan RVK 150E2-A1
Mid-frequency band, HzHz Tot 63 125 250 500 1k 2k 4k 8kLwADuctdB(A) 70 52 57 64 63 61 60 54 48LwASurroundingdB(A) 51 45 32 35 43 47 43 39 33With LDC 160-900LwADuctdB(A) 53 49 48 47 35 24 12 16 26 Measuring point: qv= 0,06 m3/s, Ps= 200 Pa

my question is: is okay this blower to my HEPA ,plus a 3cm thick furnace prefilter???

Many thanks in advance!


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InvisiblePrisoner#1
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Re: blower for my HEPA filter, PLEASE HELP!!! [Re: FGL]
    #4770421 - 10/07/05 07:39 PM (15 years, 3 months ago)

it should be suitable, if you are in america you'll need a 240v outlet acording to the data sheet


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OfflineFGL
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Re: blower for my HEPA filter, PLEASE HELP!!! [Re: Prisoner#1]
    #4772136 - 10/08/05 07:58 AM (15 years, 3 months ago)

Thanks for your answer Prisioner#1.
could you or somebody explain me how do you do the calculation (using the data I gave) to know if my blower is suitable for my filter?


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InvisiblePrisoner#1
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Re: blower for my HEPA filter, PLEASE HELP!!! [Re: FGL]
    #4772244 - 10/08/05 09:38 AM (15 years, 3 months ago)

Anno has a site with all the info you need

http://www.fungifun.org/flowhood/match.htm


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OfflineFGL
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Re: blower for my HEPA filter, PLEASE HELP!!! [Re: Prisoner#1]
    #4776312 - 10/09/05 10:30 AM (15 years, 3 months ago)

I have done the calculation and:
my filter is 2ftx2ft: 4ft2
I did 100ft/minx4ft2: 400ft3/min.
1cfm:1.7m3/h. 400cfm: 680m3/h. So my blower must deliver 680m3/h at the sum of the STATIC PRESSURE of the HEPA filter + prefilter.

My HEPA filter sheet data says it has a 125 Pa resistance (is this the same that the STATIC PRESSURE mentioned above??), if so my blower must deliver 680m3/h at 125 Pa(HEPA filter resistance)plus
50 Pa (furnace filter resistance), what give us :

680m3/h at 175 Pa of STATIC PRESSURE, is it right?

Now, how do you know my blower should be suitable for this filter, using for the calculation the blower data sheet I posted yestarday?

THANKS AGAIN in ADVANCE!


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InvisiblePrisoner#1
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Re: blower for my HEPA filter, PLEASE HELP!!! [Re: FGL]
    #4776327 - 10/09/05 10:35 AM (15 years, 3 months ago)

it's a 400cfm blower aka 400ft3/min


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OfflineFGL
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Re: blower for my HEPA filter, PLEASE HELP!!! [Re: Prisoner#1]
    #4776346 - 10/09/05 10:44 AM (15 years, 3 months ago)

where did you read that??


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InvisiblePrisoner#1
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Re: blower for my HEPA filter, PLEASE HELP!!! [Re: FGL]
    #4776365 - 10/09/05 10:51 AM (15 years, 3 months ago)

420 ((cubic feet) per minute) = 713.584534 (cubic meters) per hour

here's a conversion table
http://www.heatsink-guide.com/index.html

the info on the blower came from the companies website


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OfflineFGL
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Re: blower for my HEPA filter, PLEASE HELP!!! [Re: Prisoner#1]
    #4776405 - 10/09/05 11:05 AM (15 years, 3 months ago)

Ok Prisoner, I went to the company website and It says about my blower: RVK 150E2 A1: maximum air flow:0.12m3/s or 420m3/h.
are you sure you are seeing the same blower model???
I want to be pretty sure before making my flowhood...


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InvisiblePrisoner#1
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Re: blower for my HEPA filter, PLEASE HELP!!! [Re: FGL]
    #4776515 - 10/09/05 11:37 AM (15 years, 3 months ago)

aparently I had the wrong site... I just found the same one you've got, it may be
under powered by about half after reading a bit more on the actual specs of your blower


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OfflineFGL
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Re: blower for my HEPA filter, PLEASE HELP!!! [Re: Prisoner#1]
    #4776637 - 10/09/05 12:07 PM (15 years, 3 months ago)

oh shit, Prisoner! that means I got to buy a new blower...
What dom you think would be better to my filter?:

RVK 160E2-L1, or RVK 200E2-A1

Thanks again!


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Re: blower for my HEPA filter, PLEASE HELP!!! [Re: FGL]
    #4776849 - 10/09/05 12:57 PM (15 years, 3 months ago)

I'd move to the 200 model, the 160 will produce 388cfm


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OfflineFGL
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Re: blower for my HEPA filter, PLEASE HELP!!! [Re: Prisoner#1]
    #4777070 - 10/09/05 01:49 PM (15 years, 3 months ago)

I think that is what I'm going to do.
Many thanks for your time!


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Re: blower for my HEPA filter, PLEASE HELP!!! [Re: FGL]
    #4777352 - 10/09/05 03:35 PM (15 years, 3 months ago)

no problem, thanks for pointing out my error, it may still have worked but it certainly wouldnt have been optimal


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