Stupid question time. Will thin-wall electrical conduit with zinc
compression fittings work for a compressed air manifold, or will the
couplings leak too much? Copper has gotten expensive, and iron pipe has to
I know I could use CPVC plastic pipe, but what fun is that?
safer. Not recommended, but safer. CPVC, and PVC are not recommended for
compressed air systems because of the volitile result of a rupture. Shards a
flyin'. Do a test with some EMT to see if it leaks any, but I'm thinkin' the
range of fittings available for it won't be too airtight. Spend the money! You
could rent a threader, and iron can be purchased pre-threaded, and the ease of
fitting is worth the expense. Tom
Someday, it'll all be over....
I have a big coffee can of misc. fittings, so I might not have to buy
any except for a few iron pipe T's and ells. But I agree if I have to
buy more than a couple of EMT fittings, it would eat up all the savings
vs. using L copper.
But now that I thought of it, I *gotta* see if an EMT compression
fitting will hold 110 pounds of compressed air without leaking (clamped
down, so it doesn't shoot apart like a rocket!) if I lube the
compression sleeves with RTV.
This is Turtle.
Use the Harding type RTV stuff and not the stay soft stuff. Now i might warn you to
watch out here because of the EMT is not
designed for air pressure lines. You may get wooped up side the head by it.
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com ).
Air hose is $8 for 50 feet at harbor freight, and $13 for 1/2" dia.
Unless you got a real good deal on EMT and fittings, a couple of
sections of hose will go a long way towards plumbing, safely.
The same straps that hold EMT in place will hold rubber hose as well.
And if copper comes down, and you do plumb permanently, you'll have
hoses you can still use.
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