Silicone Turbo Hose for Dust Collection Joints
Curious if anyone has used silicone hose or fittings like the ones used for truck turbo systems for making joints in dust collection systems. I needed a couple of couplings so ran to the old Amazonian free delivery shop and found that they’re out of stock. PVC sewage pipe is 4 inch ID so the connectors like a fernco that the box stores sell aren’t really sized right so that was out and I only need a couple and didn’t want to pay freight to order them from my usual woodworking supply sources.
Then it struck me to check something else. I’ve worked in the diesel truck repair field and the aftermarket parts field for them and silicone hose is used a lot both for hoses and for charge air/ turbo systems. They are sized by ID so that should fit, they have different ones for the hot and cold sides of the turbo system so they’ll hold a pretty decent amount of pressure (and unrelated for dust collection heat) and depending on what you get they’re relatively inexpensive. Depending on how you buy it the price is about 25 dollars for a foot and that would give me at least 3-4, maybe 5 couplings which is comparable or less than I’d pay for the regular rubber even after picking up some clamps to go with them.
That made me curious if anyone has used it before as couplings or for longer sections. I dont think there’s any issue for couplings since the size is simply right but while it’s fairly stiff hose, it’s made for pressurized systems not vacuum ones. On a short coupling that’s not a problem and it’s too costly for long runs but I could see it as maybe being useful for places where there’s a foot or two between fittings like a couple of hard 45s or 90s or a blast gate that you want a little further away for convenience like when it’s attached to something with an outfeed table but the longer the length the more chance of suction collapsing it. The biggest advantage on the other hand is that it’s got flex and is smooth so you don’t have the losses and turbulence of traditional flex hose.
So just wondering if anyone has used it at all and can speak to how far you can take it without it collapsing. Could see it being useful in the right places, and it helping optimize flow.