PVC pipe - Page 2 - Woodworking Talk - Woodworkers Forum
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post #21 of 37 Old 08-08-2018, 06:24 AM
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This https://www.engineeringtoolbox.com/p...rts-d_134.html gives you the velocities needed for sawdust, etc. Divide the DC capacity by that number gives you the pipe cross section area in square feet; divide that by 144 for sq inches. Use Area = Pi x R squared to see what the ideal pipe size is.
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post #22 of 37 Old 08-08-2018, 07:20 AM
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Awesome thank you is the schedule 80 the thin walled pvc?


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Schedule 40 is the regular pipe. Schedule 80 is extra heavy. The thin pipe is schedule 20.
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post #23 of 37 Old 08-08-2018, 08:08 AM Thread Starter
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Quote:
Originally Posted by ducbsa View Post
This https://www.engineeringtoolbox.com/p...rts-d_134.html gives you the velocities needed for sawdust, etc. Divide the DC capacity by that number gives you the pipe cross section area in square feet; divide that by 144 for sq inches. Use Area = Pi x R squared to see what the ideal pipe size is.


Awesome thank you for this!


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post #24 of 37 Old 08-08-2018, 08:09 AM Thread Starter
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Schedule 40 is the regular pipe. Schedule 80 is extra heavy. The thin pipe is schedule 20.


Thank you!


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post #25 of 37 Old 08-11-2018, 06:01 PM
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I agree...

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I used 4" PVC sewer pipe. Thinner wall but still plenty stout for a vac line and le$$ than the heavier wall PVC.
I went with the black sewer pvc (4Ē)
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post #26 of 37 Old 08-11-2018, 06:05 PM
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Cool

[QUOTE=lilsullivan04;2001390]Awesome thank you is the schedule 80 the thin walled pvc?

No, schedule 40 is thinner.
I used black sewer pvc, it less expensive than the white.
Good luck.
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post #27 of 37 Old 08-11-2018, 08:55 PM
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I used 4" PVC sewer pipe, I believe it is schedule 20. But much cheaper and lighter and works just as good as the heavier pipe.
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Bob making sawdust in SW Louisiana
with a EX-21
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post #28 of 37 Old 08-11-2018, 09:22 PM Thread Starter
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I used 4" PVC sewer pipe, I believe it is schedule 20. But much cheaper and lighter and works just as good as the heavier pipe.


Where did you get the schedule 20 pvc pipe at? I canít find it locally here in Kansas City Missouri.


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post #29 of 37 Old 08-12-2018, 06:10 AM
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post #30 of 37 Old 08-12-2018, 06:48 AM Thread Starter
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I clicked on the link and still canít find it. Iíll look at my local Loweís.


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post #31 of 37 Old 08-12-2018, 03:06 PM
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I own the 2hp Harbor Freight dust collector. For the ďaverage joeĒ I believe it to be PLEANTY powerful and inexpensive. Love that it is on a cart w/wheels..although not sure how much iíll be moving it.
Good luck
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post #32 of 37 Old 08-12-2018, 03:10 PM Thread Starter
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I own the 2hp Harbor Freight dust collector. For the ďaverage joeĒ I believe it to be PLEANTY powerful and inexpensive. Love that it is on a cart w/wheels..although not sure how much iíll be moving it.

Good luck


I think Iíll go this route with a dust deputy and thein baffle. Probably will be just fine for me and run 4Ē pvc pipe and Iíll get the schedule 40 pipe cause I cannot find schedule 20!


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post #33 of 37 Old 08-12-2018, 07:13 PM
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the lightweight stuff is typically in the 'landscaping' section vs. the plumbing supplies - but I'd use the standard sched 40 - you'll have a much bigger selection of fittings etc.
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post #34 of 37 Old 08-13-2018, 06:09 PM
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I used sewer pipe and a combination of sewer pipe fittings and sch. 40 fittings to make quick disconnects. Works pretty slick.
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post #35 of 37 Old 08-13-2018, 09:57 PM Thread Starter
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Quote:
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I used sewer pipe and a combination of sewer pipe fittings and sch. 40 fittings to make quick disconnects. Works pretty slick.


Have a picture of your setup?


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post #36 of 37 Old 08-14-2018, 09:42 AM
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Have a picture of your setup?


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Here's a few. If you grind the stop out of the center of a sch. 40 coupler it makes a perfect sleeve to slide over a sewer pipe coupler. I glued some lugs to the outside because it is a friction fit.
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post #37 of 37 Old 08-14-2018, 03:07 PM
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"....If you grind the stop out of the center of a sch. 40 coupler it..."
look for a "repair coupler" - it has a smooth 'no stop' bore.
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