PVC for Dustcollection

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Forum topic by captjack posted 05-24-2009 02:45 PM 1290 views 0 times favorited 10 replies Add to Favorites Watch
View captjack's profile


6 posts in 2753 days

05-24-2009 02:45 PM

Here is my system.
I have a single stage 950 cfm Dust collector with 12’ of flex hose going to a chip seperator (making mine a homemade 2 stage). In the 12’ run I have 3 90deg elbows. All my hose materials were purchased from Jet. My question is, can I put some 4” pvc pipe in place of the flex hose? If it is possible what sort of ‘adapters’ can I find to connect plumbing pipe to DC hose/fittings.

-- Over 35 years experience producing high quality saw dust.

10 replies so far

View Splinterman's profile


23066 posts in 2784 days

#1 posted 05-24-2009 03:00 PM

Your local plumbing supplier may have the PVC reducer’s, sleeves, and fitting that is required for the project.

View tenontim's profile


2131 posts in 3167 days

#2 posted 05-24-2009 03:15 PM

The black plastic fittings that come with the flex pipe, will fit inside of thick wall 4” pvc with a wrap of duct tape around the fitting to match the size to the pipe.

View Jeff Roberts's profile

Jeff Roberts

35 posts in 2727 days

#3 posted 05-24-2009 03:33 PM

I used PVC for all the ducts in my old shop. If you use the really cheap pipe and fittings (thin wall used for outdoor drain projects) 4” DC fittings can be made to fit tight inside the 4” PVC pipe with a few wraps of duct tape. By adjusting the number of wraps, you can make permanent connections or ones that can be easily disconnected. I screwed all of my PVC together instead of gluing to make it easy to reconfigure in the future.

I do believe I saw a specific PVC adapter a Woodcraft. Not sure if it was for schedule 40 or the outdoor thin pipe.

-- Jeff, Dayton, OH

View Abbott's profile


2570 posts in 2726 days

#4 posted 05-24-2009 03:42 PM

I use 4” SD PVC (SD=sewer and drain) purchased from Lowe’s. 10’ costs $7.50 or so. 4” Y’s run about $5.50. Other items such as blast gates, adapters or specialty fittings I order from

-- Ohh mann...pancakes and boobies...I'll bet that's what Heaven is like! ♣ ♣ ♣ ♣

View doyoulikegumwood's profile


384 posts in 3415 days

#5 posted 05-24-2009 05:28 PM

the only thing i would add is stay away from 90degree elbows it robs you of cfm at the end of the run use 2 45 dagree elbows insted.

-- I buy tools so i can make more money,so ican buy more tools so I can work more, to make more money, so I can buy more tool, so I can work more

View Myron Wooley's profile

Myron Wooley

226 posts in 3318 days

#6 posted 05-24-2009 05:39 PM

I found that my local irrigation supply house has a much better selection than the local big-box stores. You can get long sweeps for 4” tubing.

Also, here is a really handy site for making your own pipe joints: Pipe Joint Template

-- The days are long and the years are short...

View Milo's profile


869 posts in 2742 days

#7 posted 06-07-2009 09:38 PM

Hey Myron, WHAT do you find at your local irrigation supply house? Tubing?

What about the problem of static in those tubes? Aren’t you supposed to ground those tubes somehow?
Ah, never mind… Myron’s excellent link talks about it.



-- Beer, Beer, Thank God for Beer. It's my way of keeping my mind fresh and clear...

View Myron Wooley's profile

Myron Wooley

226 posts in 3318 days

#8 posted 06-08-2009 06:56 AM

My system is built with 6” SD tubing. The big box stores only go to 4”. The irrigation places have the larger sizes, along with fittings to go with it.
My system isn’t grounded. It raises the hair on my arm on dry days when I use my jointer, which can be disconcerting but not dangerous.

-- The days are long and the years are short...

View moshel's profile


865 posts in 3106 days

#9 posted 06-08-2009 10:46 AM

Why not dangerous? I understand that the combination of sawdust and sparks from static electricity discharge can explode. I thought that this is the reason the pipes has to be grounded. Anyway, i think standard wire with screws every now and then can work as ground. no need for fancy kits. Would love to hear anyone that has more in-depth knowledge on this.

-- The woods are lovely, dark and deep, but I have promises to keep...

View Julian's profile


880 posts in 2948 days

#10 posted 06-08-2009 05:13 PM

There is no reported explosions caused by static buildup in pvc pipes. It’s a wives tale/urban myth. All I do to keep the static charge from shocking me(the only real problem) is to wrap a stripped piece of copper wire around the last few feet of flex pipe that connects to the machine you are using by just hooking it on a metal piece of the tool. This eliminates the charge, and doesn’t clog up the line like the systems that tell you to run the wire inside the pipe.

-- Julian, Park Forest, IL

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