Home | Community | Message Board

Original Seeds Store
This site includes paid links. Please support our sponsors.


Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Shop: PhytoExtractum Buy Bali Kratom Powder   Original Sensible Seeds High THC Strains   Kraken Kratom Red Vein Kratom   Unfolding Nature Unfolding Nature: Being in the Implicate Order

Jump to first unread post Pages: 1
OfflineKillerclowns87
Homie
Male


Registered: 06/11/16
Posts: 161
Loc: Florida
Last seen: 1 year, 6 months
Help picking a blower.
    #27088298 - 12/14/20 06:34 AM (3 years, 2 months ago)

Ok, I've decided it's time to finally build a flow cabinet. I've been in this hobby for about 5 years, following my older sister's excitement. (she and her husband used to be an admin on this message board.)

Ok, I know this seems like a task I should be able to take on myself however, I've had my filter for almost 2 weeks now, and I'm about ready to admit defeat. Or last ask for the community's help.

The filter I ordered is from  Air filter's, INC.
The specs for this filter are :
cfm -350
IN W.G. - 1.0
%PEN 0.01

I'm having trouble first of all finding a site that will order the curve spec sheet. I've found one site that offers the spec sheet with the item being advertised but I cannot find one that would work for me.
Also, most times I notice that the curve sheet only goes up to "0.8 IN W.g."

Is there a way to reduce or simplify these ratings so that I can use the website's curve spec sheet? Hopefully, this makes sense.

To give an example, when I first purchased this filter the man told me the ratings were: 700cfm @ 1.5 IN W.G.


Extras: Filter Print Post Top
OfflineHaywire
Wetspot Wizard
Male


Registered: 12/29/13
Posts: 1,611
Last seen: 18 hours, 2 minutes
Re: Help picking a blower. [Re: Killerclowns87]
    #27088918 - 12/14/20 02:09 PM (3 years, 2 months ago)

check out Bodhisatta's thread about flow hoods.
should be straight forward from there.


--------------------
Ciao mamma, guarda come mi diverto


My grows :mushroom2: Outdoor patches


Extras: Filter Print Post Top
Invisiblesandman420
Saint PP
Male


Registered: 06/17/04
Posts: 5,384
Trusted Cultivator
Re: Help picking a blower. [Re: Haywire]
    #27089264 - 12/14/20 05:47 PM (3 years, 2 months ago)

How big is the filter?

Data sheets will only show the curve the fan is rated for. If the data stops at 0.8" wg then that is where the airflow diminishes significantly. And before the data starts is too low sp for the fan to work properly, conversely.

The static pressure of a filter changes with the airflow, so a 1.5" wg @ 700 cfm filter would probably be about 1.0" wg @ 350 cfm airflow.

I can tell you what size blower you need if you tell me the filter size. wild guess that it's a 24x24?


--------------------
- 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


Extras: Filter Print Post Top
OfflineKillerclowns87
Homie
Male


Registered: 06/11/16
Posts: 161
Loc: Florida
Last seen: 1 year, 6 months
Re: Help picking a blower. [Re: sandman420]
    #27089861 - 12/15/20 05:07 AM (3 years, 2 months ago)

Quote:

sandman420 said:
How big is the filter?

I can tell you what size blower you need if you tell me the filter size. wild guess that it's a 24x24?




Almost, its a 24 x 18 x 6.


Extras: Filter Print Post Top
Invisiblesandman420
Saint PP
Male


Registered: 06/17/04
Posts: 5,384
Trusted Cultivator
Re: Help picking a blower. [Re: Killerclowns87]
    #27089933 - 12/15/20 06:27 AM (3 years, 2 months ago)

Would you be able to take a pic of the data sticker on the HEPA filter for me? just want to double check that it agrees with what the site says, it should have the actual scan data on it, including test flow and pressure.


--------------------
- 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


Extras: Filter Print Post Top
Invisiblesandman420
Saint PP
Male


Registered: 06/17/04
Posts: 5,384
Trusted Cultivator
Re: Help picking a blower. [Re: sandman420]
    #27089945 - 12/15/20 06:40 AM (3 years, 2 months ago)

But according to what you've said about the filter you need 300 cfm air delivery @ 0.80"wg + 0.2"wg for the prefilter for a close estimate total of 300cfm @ 1.0" air delivery which a 1TDT8 gives very close to.


--------------------
- 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


Extras: Filter Print Post Top
Invisiblesandman420
Saint PP
Male


Registered: 06/17/04
Posts: 5,384
Trusted Cultivator
Re: Help picking a blower. [Re: sandman420]
    #27089954 - 12/15/20 06:56 AM (3 years, 2 months ago)

protip on prefilter sizing: Furnace filters are intended to have about 250-300 fpm max airflow in general.

So a 12x12 filter with 300 cfm going through it will have 300 fpm. (300 cubic foot per minute / 1sq ft is 300 linear feet of air)

Kinda hard to mess up your prefilter size since your hepa is so small and happens to line up with the smallest prefilter size you can find, but on a bigger hood builds I see people use too small of a prefilter. That is going to add "wg to the total system for others reading, putting more strain on blower needs.


--------------------
- 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


Extras: Filter Print Post Top
OfflineKillerclowns87
Homie
Male


Registered: 06/11/16
Posts: 161
Loc: Florida
Last seen: 1 year, 6 months
Re: Help picking a blower. [Re: sandman420]
    #27091624 - 12/16/20 06:21 AM (3 years, 1 month ago)

Quote:

sandman420 said:
Would you be able to take a pic of the data sticker on the HEPA filter for me? just want to double check that it agrees with what the site says, it should have the actual scan data on it, including test flow and pressure.





Hopefully this is the sticker you mean?


Extras: Filter Print Post Top
OfflineKillerclowns87
Homie
Male


Registered: 06/11/16
Posts: 161
Loc: Florida
Last seen: 1 year, 6 months
Re: Help picking a blower. [Re: sandman420]
    #27092073 - 12/16/20 12:11 PM (3 years, 1 month ago)

Quote:

sandman420 said:
But according to what you've said about the filter you need 300 cfm air delivery @ 0.80"wg + 0.2"wg for the prefilter for a close estimate total of 300cfm @ 1.0" air delivery which a 1TDT8 gives very close to.




I see what you are saying here, I've found a site that offers spec sheets. It appears to me that a 1tdt3 would get me close to the same thing with just the one speed, and save me 60 bucks.

what do you think of this after looking at the sticker I sent?
Thanks for your advice my friend.


Extras: Filter Print Post Top
Invisiblesandman420
Saint PP
Male


Registered: 06/17/04
Posts: 5,384
Trusted Cultivator
Re: Help picking a blower. [Re: Killerclowns87]
    #27092092 - 12/16/20 12:25 PM (3 years, 1 month ago)

It would look like the 1tdt3 would do the trick to me too.

Looks like the sticker agrees with what they said so this should get you a working laminar flow.

for anyone curious i look up the blower on electric motor warehouse and see the pdf for the data graph. grainger doesnt have it anymore  i think.

edit if that blower doesnt blow enuf  it will with no prefilter


--------------------
- 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


Edited by sandman420 (12/16/20 12:28 PM)


Extras: Filter Print Post Top
Jump to top Pages: 1

Shop: PhytoExtractum Buy Bali Kratom Powder   Original Sensible Seeds High THC Strains   Kraken Kratom Red Vein Kratom   Unfolding Nature Unfolding Nature: Being in the Implicate Order


Similar ThreadsPosterViewsRepliesLast post
* Is this blower fan suitable for a laminar flow hood build? moods.exe 695 16 12/19/20 02:59 PM
by moods.exe
* prefilter for hepa? cant figure out blower, have read faq. kilgore_trout 1,118 4 08/26/04 07:26 PM
by kilgore_trout
* blower for my HEPA filter, PLEASE HELP!!! FGL 2,439 13 10/09/05 02:35 PM
by Prisoner#1
* flow hoods matching blower with filter is this right? greenshaman 5,151 10 04/22/18 09:08 AM
by bodhisatta
* will this hepa filter work with this blower? fungophiliac 1,370 9 01/11/05 08:10 PM
by Fluxburn
* Flowhood prefilter Wheedhead! 1,092 6 08/11/03 10:45 PM
by hyper_dermic
* Prefilter for HEPA ? MrMaddHatter 1,155 5 06/08/05 03:41 PM
by MrMaddHatter
* Safe to uses this as a prefilter? NTTG_Hunter 756 4 10/07/03 10:58 AM
by NTTG_Hunter

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: Shroomism, george castanza, RogerRabbit, veggie, mushboy, fahtster, LogicaL Chaos, 13shrooms, Stipe-n Cap, Pastywhyte, bodhisatta, Tormato, Land Trout, A.k.a
191 topic views. 12 members, 92 guests and 32 web crawlers are browsing this forum.
[ Show Images Only | Sort by Score | Print Topic ]
Search this thread:

Copyright 1997-2024 Mind Media. Some rights reserved.

Generated in 0.019 seconds spending 0.006 seconds on 12 queries.