Vac table PVC flange and ball valve source?

[Brady Watson]

Make sure you get the stainless blade gate valves. The plastic I ones aren't rated for more than about 8Hg" or so because they'll distort and leak or implode....

[JimmyD]

I purchased my PVC flanges (shown below) from Harington Industrial Plastics. A search for PVC Flange yields many sources. Amazon also has them in a Van Stone flange, as well as one piece.

https://www.amazon.com/Spears-854-02...AT3HN4G0WVQYCY

[coryatjohn]

>> Coryatjohn - Is the the correct flexible PVC to use? https://www.amazon.com/HydroMaxx-Fle.../dp/B003XRVJHK

That looks like the stuff...

[EricSchimel]

Does that stuff do well under vacuum? I'd think it'd compress and you'd lose a little suction? Calling Brady

[steve_g]

"Does that stuff do well under vacuum? "

Vacuum rating = 28”/Hg…

SG

[bill.young]

I've used regular shopvac hoses for years to connect the ShopBot table to the vac box and it works well. If I was going to rebuild though I think I would use the hose that Steve posted. Being able to connect to regular schedule 40 fittings would save a ton of duct tape!

[gundog]

I have never used flanges on the vacuum tables I have made I just machine the hole to fit close and seal with silicone. I used the Valtera valves the only thing I don't like about them are the T handles I have broken a bunch of them I need to make something better.

Mike

[JMCS]

The flanges are really just for convenience. It makes it easier to attach to the plenum. You can use them or just drill a hole. The most important part is to seal it up! I'm not the biggest fan of silicone, the edges always lift after time, even with the good silicone, especially when trying to get it to stick to PVC. I would use PL Premium. It sticks to everything.

[jerry_stanek]

I cut my own flanges out of 3/4 sintra on the Shopbot. then I glued a street ell in and attached to the table

[Brady Watson]

Corrugated (or vac rated) vacuum hose is a lot tougher than you'd think. The hose that came on my Fein T3 has withstood 25 Hg" from the Becker for an hour or more using a one-off jig.

X2 on flanges not being required - it just makes it easier to hook up a PVC system. Precisely machined holes in the MDF/support board seals off fine using regular vacuum hose ends...The Fein hose wiggles in there nicely @ 2.27" ID

-B