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Dust control duct question

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Forum topic by jesinfla posted 05-04-2016 12:35 AM 588 views 0 times favorited 6 replies Add to Favorites Watch
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jesinfla

274 posts in 605 days


05-04-2016 12:35 AM

I have the HF 70 gal. 2 HP Industrial Dust Collector

If you look at the intake port you see it has a ‘Y’ connector.

Currently, I’m only using one side of the Y.

I need to run some more ducting to a few new tools.

My question is – which is more efficient – come off the other ‘Y’ port of the collector or ‘Y’ off my existing duct?

Currently, I only have a duct running on my ceiling that I connect to my TS or to tools on my bench.

If you look at this picture – the current duct runs along the ceiling behind the bench. The new duct needs to run to where the lumber rack is on the left side of the pic

Here is an updated pic of the left side of my garage/shop

Thoughts?

Thanks in advance as always

-- They said I could be anything... So I became Sarcastic! They also said making drawers is easy... I think they lied :(


6 replies so far

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JeffP

573 posts in 859 days


#1 posted 05-04-2016 10:14 AM

In theory, the best you could possibly do here would be to put gates right at that first Y and only keep one of them open at a time. In theory, that should provide the shortest possible path for the tools that are on the open path.

In theory, theory and practice are always the same. In practice, they are not.

Long story short…tape it together and try it for awhile…then change it. Unless you can afford thousands of dollars worth of really large stuff…dust collection is more a matter of messing with it until the thrill is gone.

-- Last week I finally got my $*i# together. Unfortunately, it was in my shop, so I will probably never find it again.

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rwe2156

2200 posts in 948 days


#2 posted 05-04-2016 11:47 AM

Basic rule of thumb in ww’ing is “keep it big as long as you can” and I think this applies to DC as well.

I would pull that Y off and go with one 6” duct. This might sound like overkill in a small shop, but the unit will be much more efficient. Drops can be 4’ flex. Always use sweep L’s, never 90’s and drain type Y’s, never T’s.

Second, I would trash that bag filter and spring for a canister. I wouldn’t depend on that to protect my lungs in a closed garage.

-- Everything is a prototype thats why its one of a kind!!

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sawdustdad

131 posts in 353 days


#3 posted 05-04-2016 11:53 AM

Just come off the other half of the inlet Y. Put blast gates at each tool. Open one at a time. Done.

-- Murphy's Carpentry Corollary #3: Any board cut to length has a 50% probability of being too short.

View jesinfla's profile

jesinfla

274 posts in 605 days


#4 posted 05-04-2016 12:10 PM



In theory, the best you could possibly do here would be to put gates right at that first Y and only keep one of them open at a time. In theory, that should provide the shortest possible path for the tools that are on the open path.

I was actually thinking of doing just that!


In theory, theory and practice are always the same. In practice, they are not.

Long story short…tape it together and try it for awhile…then change it. Unless you can afford thousands of dollars worth of really large stuff…dust collection is more a matter of messing with it until the thrill is gone.

- JeffP

Understood and agree – wanted to get some advice from those who may have already experienced this.
Thanks for the response

-- They said I could be anything... So I became Sarcastic! They also said making drawers is easy... I think they lied :(

View Jim Finn's profile

Jim Finn

2417 posts in 2390 days


#5 posted 05-04-2016 01:12 PM

I tossed that wye and ran six inch metal pipe right up to each piece of equipment with six inch flex the last few feet.

-- "You may have your PHD but I have my GED and my DD 214"

View jgt1942's profile

jgt1942

138 posts in 1356 days


#6 posted 07-11-2016 03:40 AM

2HP is not enough for a 6” duct pipe.
Put a Thien separator on your unit (see http://www.jpthien.com/smf/index.php?PHPSESSID=12guc0t5hb8i5amd7744rj4mp6&board=1.0)
I have a HF 2.5 HP and mine currently look like this.

My shop has become too full and the portable idea is not working for me. I plan to build a stationary unit.

-- JohnT

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