Go with 4" or 6"

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PTownSubbie

PTownSubbie

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Well, I pickup my new Dust Collector tomorrow and need to know if I should run 4" or 6" PVC as a permanent install. I only really intend to run a single machine at a time. I intend to put blast gates at each machine and open/close them as need.

The machines I intend to install to are the following:
12" planer
6" jointer
Router Table
14" BandSaw
Drill Press
10" Craftsman Professional Table Saw
Lathe

The collector has 1-6" intake or an adapter for 3-4" intakes.

The reason that I ask is I went to the store tonight and the 6" stuff is 3 times as expensive as the 4" stuff.

What are the advantages of sucking up the cost and installing 6" PVC and fitting over the 4"?
 
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I would probably run the 6" as close to the machines as you can.. non flexible if
possible. (smoother lines = better air flow) No unnecessary turns or elbows
When you get to the machines, 4" is fine with a blast gate.
Or, I could be wrong.
 
If possible I would run 6" PVC and come off that with the 4" to the tools. Going from the 6 to 4 will create a "venturi effect". At least that's what I've convinced myself. (far from an expert in this area) just my $.02
 
I will echo Daniel's advice. Automatically going with 6" is not necesarily the best idea, it depends on what DC you are getting and what airflows you will have. If you have a small DC, 6" may not work as well as 4" since the velocity of air through the ducting will not be sufficient to keep all of the collected particles moving. An improperly designed system will be a let down at best.
 
Sorry.. I was assuming the equipment should handle 6" since that was one of the
options supplied. I shouldn't assume that just because it has a 6" port, it can
actually handle a 6" port..
 
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