Thread: Dusty connections

Originally Posted by Spindleshanks

Can anybody advise me on the best method of connecting 4 inch flexible hose to 4 inch pvc. Duct tape works but is a bit "temporary". Also what's the best way of connecting 4 inch pvc to commercial 4 inch plastic blast gates? I have packed the gates out with duct tape and cut slots in the pvc to get a bit of "squeeze" out of them but looking for a better solution. I am currently installing a 2hp collector which is working well but my joints are a bit floppy. Pvc joints, I mean.

I cut the flanges off a 4" T to give 3 joiners 2" wide. I glue the joiner 20mm onto the pipe, then just use duct tape to the flexible pipe. You may think it temporary, but it is actually the best IMHO as it seals it.

Those commercial gates jam all the time with sawdust and I recommend you make your own, its very easy. See my web site that shows mine, under dust collection, and refers to other sites - http://www.dai-sensei.com/. There are also quite a few in this forum.

Cheers

Originally Posted by Spindleshanks

Can anybody advise me on the best method of connecting 4 inch flexible hose to 4 inch pvc. Duct tape works but is a bit "temporary". Also what's the best way of connecting 4 inch pvc to commercial 4 inch plastic blast gates? I have packed the gates out with duct tape and cut slots in the pvc to get a bit of "squeeze" out of them but looking for a better solution. I am currently installing a 2hp collector which is working well but my joints are a bit floppy. Pvc joints, I mean.

G'day Spindleshanks,

I've used 100mm PVC for the overhead runs, and after a bit of a rummage at the local Bunnies plumbing dept, found some short j PVC oining sleeves that fit (sorta-kinda), but with a bit of persuasion and some duct-tape for a seal, have found that it works very well. As these joining sleeves are threaded, they will also take an end-cap if I need to move stuff around.

I'd post a pic but I don't have any spare ones left, and those in situ are hidden behind the duct-tape

Regarding Dai Sensei's comments on the commercial blast gates, to date I haven't had any issues at all, even with the very fine dust generated by the TS.

Cheers!

There are a couple of ways that I have foung sucessfull.
Dai sensai's method of using eithe 'T' or joiner sections cut up as adaptors works for me. solvent cement works fine.
If you want to join 100mm pipe to hard dust fittings, put about 2 or 3 inches of boiling water in a container & stand the end in question in it till it is soft, then quickly slip it on & do up a hose clamp on it. It will clamp down fine.
If you want to make it permanent. Wait till it cools, pull it apart, apply glue & put it back together. No need to slot or anything.



or I havn't tried this but I've seen it work well.
Toilet pan collars will adapt you 100mmpvc to stabdard dust fittings & you can just pull it off if needed.
cheers

Thanks for the advice. I will give all suggestions a try. Dust is starting to affect my eyes and I am keen to get rid of as much as I can. I bought a canister type filter for my (Scheppach 2000) collector. It is terrific and so far I cannot detect any dust coming from the canister at all neither by sight or smell. I have a connection to my lathe and a floor sweep so far and next is the band saw and thicknesser. The band saw, in particular, is a very annoying source of dust.