[Shop-talk] need some copper plumbing help from the gurus

[Arvid]

I retract that suggestion. It appears as though there is not supposed to be a difference in the outside diameter of ridgid copper pipe and soft copper tube ... https://www.copper.org/publications/pub_list/pdf/copper_tube_handbook.pdf

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-------- Original message --------
From: john niolon <jniolon at att.net> 
Date: 10/20/18  12:07 PM  (GMT-06:00) 
To: shop-talk <shop-talk at autox.team.net> 
Subject: [Shop-talk] need some copper plumbing help from the gurus 




When we built my house/shop 25 years ago I had the plumber install a 3/4” 
water line to the shop and cap it off.  I was going to put in the sink and 
the outside faucet when I got time.  Well,  this week I got time
 
I cut the cap off and test fitted a 3/4” Tee to start dry fitting the 
plumbing for sink/faucet.  The Tee wouldn’t fit on the tubing.  I 
cleaned it well but the Tee was still too small to fit over the tubing.  It 
looks like he used coiled tubing, or at least that’s what’s coming up thru the 
concrete.  I tried several fittings and even cut the tubing lower to see if 
it was crimped or out of round...  it mic’d the same all the way around it 
in several places
 
I mic’d the tubing and the fitting and here’s the results
 
tubing i.d. is  .882” which is just over 7/8”
tubing o.d. is  .900”  which is just under 29/32”
 
a new standard Tee i.d.is .876”   which ain’t gonna fit over 
.900
 
if I can find one fitting to get this to standard 3/4” size I’m good to 
go...
 
did the old stuff differ from todays standard “
after researching fittings a little I see that there are several ‘types” of 
fittings.... from plumbing to hvac to whatever...
 
anyone wanna try and give me some guidance here... the net is confusing and 
offers little on actual dimensions

thanks
john
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