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OfflineJohnBravo
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Registered: 06/24/19
Posts: 21
Last seen: 3 years, 1 month
Flowhood Blower Specs Search
    #26801197 - 07/03/20 10:18 AM (3 years, 7 months ago)

Hey all. Purchased one flowhood a while ago, but my partner wants one for his space so we're building him one together.

The HEPA we purchased was 24" x 24" with a static pressure of 0.8". I understand I want minimum 400cfm at 0.8" static pressure (going to put the prefilter before the intake, so that does not add to the pressure of the system, correct?)

Anyway, we're searching for a blower. There are a ton available used locally for rather cheap. I've been asking for pictures of any label they have and then try to search online for the manual so I can see the cfm at different static pressures, but no luck really at all.

Is there a way to tell the cfm from this picture? Thanks.



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InvisibleKimble
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Registered: 03/08/18
Posts: 508
Re: Flowhood Blower Specs Search [Re: JohnBravo]
    #26801218 - 07/03/20 10:27 AM (3 years, 7 months ago)

1/3hp 60hz you should be good. It's comparable to other blowers people use on a 24*24 inch filter. Not sure what type of speed controller would be safe to use though.


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OfflineJohnBravo
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Registered: 06/24/19
Posts: 21
Last seen: 3 years, 1 month
Re: Flowhood Blower Specs Search [Re: Kimble]
    #26801333 - 07/03/20 11:46 AM (3 years, 7 months ago)

Great, thanks for the input. Any other input? Not that I don't trust you, just wanna be 100% sure its good before I put something on this hood.


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Invisiblesandman420
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Registered: 06/17/04
Posts: 5,384
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Re: Flowhood Blower Specs Search [Re: JohnBravo]
    #26801361 - 07/03/20 12:06 PM (3 years, 7 months ago)

There is not enough information to be 100% sure at all. The cfm is a result of the wheel diameter, wheel width, blade pitch, and RPM. This is just a motor data plate. Sorta like asking how much horsepower you have based on how big your battery is in your car.

That being said I would be very surprised if any 1/3 hp blower wasn't big enough to run a 24x24. 99% sure you are good.


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- Sandbag Tek - How To Sterilize Spawn Bags - All About Static Pressure / Pressure Drop for DIY Flow Hoods - Sandman's LC Tek-

Marijuanaut escapes earth to cultivate - Grow-room is church temple of the new stoner breed


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Invisibledfwerydfhg
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Registered: 05/04/20
Posts: 194
Re: Flowhood Blower Specs Search [Re: JohnBravo]
    #26801372 - 07/03/20 12:17 PM (3 years, 7 months ago)

That's the motor info, not the fan.

I would not read anything into just the power or motor info- for all you know it's a high pressure, low flow fan, or a high flow, low pressure fan that just happens to use the same motor as the one that would actually work for you.

EDIT: sandman got there first


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OfflineJohnBravo
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Registered: 06/24/19
Posts: 21
Last seen: 3 years, 1 month
Re: Flowhood Blower Specs Search [Re: dfwerydfhg]
    #26801678 - 07/03/20 03:27 PM (3 years, 7 months ago)

Thanks guys. Yeah, I was like 99% sure that you couldn't garnish the cfm from just the motor, but I just wanted to see if someone else knew something I didn't.

We were given a free furnace blower thats most definitely powerful enough, but its 220v and chinese so theres no option to wire it 120v. Looking into wiring a 220v outlet but I think it would just be better to take a chance on that 120v one.


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Invisiblesandman420
Saint PP
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Registered: 06/17/04
Posts: 5,384
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Re: Flowhood Blower Specs Search [Re: JohnBravo]
    #26801823 - 07/03/20 04:51 PM (3 years, 7 months ago)

220v chinese is not the same thing as USA 240v power. You have to get a power converter to run Chinese stuff. For one thing Chinese stuff is 50hz and we use 60hz. For another Chinese 220v uses a hot and neutral while USA 240v uses two hots. Not compatible. I', sure you will be fine with that 120v blower.


--------------------
- Sandbag Tek - How To Sterilize Spawn Bags - All About Static Pressure / Pressure Drop for DIY Flow Hoods - Sandman's LC Tek-

Marijuanaut escapes earth to cultivate - Grow-room is church temple of the new stoner breed


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