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

[Randall]

There's something wrong with those numbers. .900 minus .882 is only .018, meaning the wall thickness is only .009".

But otherwise I agree, its probably 3/4 soft copper tubing, perhaps with an extra coating for direct burial. Get a 3/4" flare nut and see if it will fit over the tubing. .900" is kind of big, but flare fittings are much more forgiving than sweat fittings are. Soft copper can also be swaged down a bit, just by clamping it in the flaring tool.
-- Randall

On 20 October 2018 20:10:06 GMT-06:00, Steven Trovato <strovato at optonline.net> wrote:
>There's certainly nothing wrong with asking the 
>shop-talk gurus, but for that sort of situation I 
>would walk into a plumbing supply store and tell 
>them what I have and ask for a fitting.  I'm sure 
>the situation has come up before.  As far as I 
>know, there hasn't been any major shift in sizes 
>in the last 25 years.  My house was built in 1985 
>and fittings I buy work just fine with the 
>original pipes.  Maybe the coiled tubing is the 
>problem.  I have never tried connecting regular fittings to that.
>
>-Steve T.
>
>At 01:07 PM 10/20/2018, john niolon wrote:
>>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
>
>
>---
>This email has been checked for viruses by Avast antivirus software.
>https://www.avast.com/antivirus
>
>_______________________________________________
>
>Shop-talk at autox.team.net
>Donate: http://www.team.net/donate.html
>Suggested annual donation  $12.96
>Archive: http://www.team.net/pipermail/shop-talk
>
>Unsubscribe/Manage:
>http://autox.team.net/mailman/options/shop-talk/tr3driver@ca.rr.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/shop-talk/attachments/20181021/63a8724d/attachment.html>