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Forum topic by schloemoe posted 905 days ago 892 views 0 times favorited 9 replies Add to Favorites Watch
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schloemoe

688 posts in 1535 days


905 days ago

Just a quick question… I just receive a H.F. dust collector thru a smokin deal . Its set up with 4” colectors leaving the unit .I have about 60’ of ridged pvc pipe that is 3” will I damage the unit if i by reducers to 3” and use that to run my perimitor. Just need to now it would be a hole lot cheaper than having to buy pipe…...thanks for reading any advise will be appreciated…....................Schloemoe

-- schloemoe, Oregon , http://www. woodrehab.blogspot.com


9 replies so far

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jack1

1907 posts in 2624 days


#1 posted 905 days ago

The 4” would work the best but, it’ll still work with the three ”. Give it a try. Shouldn’t hurt the unit any. I neck mine down to less than that for some tools…

-- jack -- ...measure once, curse twice!

View 404 - Not Found's profile

404 - Not Found

2544 posts in 1566 days


#2 posted 905 days ago

Any way you could just put in a 4” run for the thicknesser? If you took a big pass on a wide pine plank you might clog it up. Everything else should be ok.

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a1Jim

111999 posts in 2174 days


#3 posted 905 days ago

Rick I’ve been running all of my HF dust collectors with 3” pipe for years ,no problem .

-- http://artisticwoodstudio.com Custom furniture

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Jonathan

2603 posts in 1648 days


#4 posted 905 days ago

I don’t think it’s enough to worry about, especially since you’re not running huge industrial machinery. It’s just not going to run as efficiently, although you should still be fine. You’re simply creating a bit of a pressure difference, similar to a car exhaust system, only reversed.

-- Jonathan, Denver, CO "Constructive criticism is welcome and valued as it gives me new perspectives and helps me to advance as a woodworker."

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Beginningwoodworker

13337 posts in 2270 days


#5 posted 905 days ago

I use 4’’ pipe on my dust collector with good results.

-- CJIII Future cabinetmaker

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Bertha

12951 posts in 1290 days


#6 posted 905 days ago

I think if the pipe is rigid, you’re in good shape. I run 4” flexible, so I’m probably not qualified to comment. I sure WANT to run perimeter pipe, though;)

-- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog

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Rob Drown

712 posts in 2430 days


#7 posted 905 days ago

3” has a cross sectional area of 7.06 in sq , 4” has 12.56 sq of cross sectional area. 4” is a lot bigger and will have less pressure drop.

-- The expectations of life depend upon diligence; the mechanic that would perfect his work must first sharpen his tools. Confucius, 经过艰苦的努力的梦想可以成真

View crank49's profile

crank49

3337 posts in 1568 days


#8 posted 904 days ago

You are going to connect a 3” line to each of the 4” connections on the fan inlet if I understand correctly?

If so, you will be fine. The fan inlet is actually a single 5” before they stuck the 4” wye on there at the factory.

Two 3” pipes will have a cross section equal to about 72% of the true fan inlet.

If you have a problem with something making too many chips and plugging the 3” line you can always put one of those trashcan separators at the source with a short length of 4” hose connected to the machine. Then the 3” pipe will only be conveying mostly air.

-- Michael :-{| “If you tell a big enough lie and tell it frequently enough, it will be believed.” ― A H

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doordude

1085 posts in 1580 days


#9 posted 904 days ago

schlomoe, it helps to get your answers right here.since you’ve got the 3” material already, a1jim says it’s ok then it’s ok. go for it

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