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Thread: central vac tubes for the shop?

  1. #1
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    central vac tubes for the shop?

    I have some left over white plastic tubes when I installed my central vac system. I was wondering if I could use these tubes for my dust management system in my shop? I know you can use metal ducking and I do have the plastic coiled tubes in my shop. I was looking at using some of the cental vac tubes from my disc sander up to the ceiling and down to a Y-junction on my dust system. I use grounding wire in and around my other coiled tubes. What about the central vacuum tubes are they ok to use or do they generate too much static?

    Dan

  2. #2
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    not sure of the size your talking about but i use 4"pvc tubing on my machines and 6" in the main runs.. no trouble thus far.
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  3. #3
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    Quote Originally Posted by larry merlau View Post
    not sure of the size your talking about but i use 4"pvc tubing on my machines and 6" in the main runs.. no trouble thus far.
    Same here. No problems.

    If you're only using the small diameter tubing on sanders, etc. then there shouldn't be any problem. I wouldn't try to use it on chip producing machinery like planers, though. It'd clog too easily.
    Jim D.
    Adapt, Improvise, Overcome!

  4. #4
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    Any thing under 4" and in fact even 4" does not move enough air to effectively capture the finest dust the stuff that will cause health problems in time.

    Your call
    The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
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  5. #5
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    Quote Originally Posted by Stuart Ablett View Post
    Any thing under 4" and in fact even 4" does not move enough air to effectively capture the finest dust the stuff that will cause health problems in time...
    Isn't that a factor of air velocity, not pipe size?
    Jim D.
    Adapt, Improvise, Overcome!

  6. #6
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    Quote Originally Posted by Stuart Ablett View Post
    Any thing under 4" and in fact even 4" does not move enough air to effectively capture the finest dust the stuff that will cause health problems in time.

    Your call
    A shop vac with a 2 1/2" hose is better on a sander than nothing.
    When the going gets weird, the weird turn pro. - Hunter S. Thompson
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  7. #7
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    Quote Originally Posted by Jim DeLaney View Post
    Isn't that a factor of air velocity, not pipe size?
    The factor is the Cubic Feet of air moved per Minute (CFM). Most vacuums have a great static pressure, that is the amount of "Suck" but the CFM is fairly low, and you need that CFM right at the source of the cut to capture the super fine stuff.
    The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
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  8. #8
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    Quote Originally Posted by Vaughn McMillan View Post
    A shop vac with a 2 1/2" hose is better on a sander than nothing.
    I do agree with you Vaughn, and a sander is a very good place to use the smaller pipe size, but for an overall system, nothing beats CFM
    The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
    William Arthur Ward

  9. #9
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    When running a dust collection system, the diameter of the pipe will limit how much air will move (CFM). Size of pipe isn't as critical to vacuum systems because of the static pressure difference. The blowers are made different for each type. I do have a central vac set up in my shop that I plan to run to the SCMS port, with the cyclone running a 6" pipe to a yet to be built shroud behind the unit. I hope it will work. Jim.
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  10. #10
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    Thanks guys!

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