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Old 08-12-2016, 08:35 PM   #1
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Newbie..attach threaded brass to copper pipe


Ok so I apologize if my question seems rudimentary. I have a brass threaded ball valve I need to attach to a copper pipe. So, I bought a threaded/sweat copper adapter. When I tighten it by hand, it kind of bottoms out half way. Since the brass part is very expensive I don't want to try forcing it yet. Am I using the correct fitting for this situation? The copy fitting seems to be tapered a bit.



Thanks much, Chris
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Old 08-12-2016, 08:41 PM   #2
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Re: Newbie..attach threaded brass to copper pipe


The manual says to use "male pipe thread x compression fitting"? I haven't seen too many 1 inch compression fittings...
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Old 08-12-2016, 09:47 PM   #3
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Re: Newbie..attach threaded brass to copper pipe


Quote:
Am I using the correct fitting for this situation?
Yes


Quote:
The copy fitting seems to be tapered a bit.
Yes, pipe threads are tapered. The further you screw then in the tighter they get.
Coat threads with pipe dope (pipe thread joint compound) or Teflon tape. Both are lubricants that that aid in tighten.
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Old 08-12-2016, 09:59 PM   #4
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Re: Newbie..attach threaded brass to copper pipe


Thanks for the info! I thought it was right but I didn't want to wreck my 500.00 fitting...
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Old 08-12-2016, 10:06 PM   #5
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Re: Newbie..attach threaded brass to copper pipe


$500.00?

Where are you some remote island where everything is high priced due to shipping?

ED
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Old 08-12-2016, 10:07 PM   #6
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Re: Newbie..attach threaded brass to copper pipe


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wreck my 500.00 fitting...
Wow, thought you said brass, must have meant gold.
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Old 08-12-2016, 11:24 PM   #7
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Re: Newbie..attach threaded brass to copper pipe


Not gold. just part of my z-wave automatic water shutoff...
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Old 08-12-2016, 11:42 PM   #8
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Re: Newbie..attach threaded brass to copper pipe


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The manual says to use "male pipe thread x compression fitting"? I haven't seen too many 1 inch compression fittings...
They probably suggest compression so you don't over heat the valve when soldering- you can "boil" the pipe dope out too, resulting in a leak.

Check out 1" MIP sharkbite fittings. They might be a good option
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Old 08-12-2016, 11:44 PM   #9
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Re: Newbie..attach threaded brass to copper pipe


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They probably suggest compression so you don't over heat the valve when soldering- you can "boil" the pipe dope out too, resulting in a leak.

Check out 1" MIP sharkbite fittings. They might be a good option
Will do thanks. I think I can sweat these without them being attached but I'll look at the sharkbites...
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Old 08-13-2016, 06:37 AM   #10
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Re: Newbie..attach threaded brass to copper pipe


I think I would sweat the adapter on , then put a cap on it and check for leaks.
Wouldn't want to be screwing around with a $500 fitting just because I had a leak in a solder joint.
And yes everybody has one every once and a while.
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