I have made most of my DC fittings out of PVC plumbing fittings. They are
about a quarter the price of DC fittings. I am sure they have Ys.
(Okay, they look crummy and sometimes have to be shimmed with duct tape, but
I am really cheap.)
Why not? Do what you have to to Get-R-Done.
Somebody should publish a cross refrence manual that goes from plumbing
to air to electrical conduit fitting sizes, heating duct and DC
sheetmetal goods etc.
That's not being cheap... that's being smart with your money.
A: Get a larger Y and three adapters. I have four 2 1/2
"outlets" y'ed into my 4 inch PVC system, scattered around
the shop. I found some small plastic containers that exactly
fit the hole and use them to stop up any or all that is not
currently in use. I even attach the stoppers with a short
piece of chain so they will not wander off when not
fulfilling their intended function.
B: If it is to be a permanent Y, I have used a PVC Y that
the hose will slip into, then used a heat gun to shrink the
PVC to a tight fit. (used this on my bandsaw setup when I
had two ports on the saw).
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