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Author:
Benjamn89 (MA)
Hello
I'm a first time plumbing diy-er and trying to determine the best way to install a new pipe to an existing valve.
What is the best way to install a pipe into this valve? It doesn't have any threading so I am not sure if I should simply place the pipe using some compound, or if this needs to be threaded before installing the pipe.
See image at the link below - thanks!
[www.dropbox.com]
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Author:
kingshakabobo (IL)
You need a torch, flux and solder.
That's what's called a "sweat" fitting meaning you have to solder or "sweat" the pipe connection.
It's not the hardest thing in the world to do. There are plenty of videos showing how.
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Author:
stuckinlodi (MO)
Edited 1 times.
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Author:
bernabeu (SC)
The pic shows a globe type stop & waste valve which has an internal washer.
The valve needs to be CAREFULLY soldered in the OPEN (and completely dry) position.
The 'thingy' on the side acts as a downstream drain if necessary.
==============================================
"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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Author:
Paul48 (CT)
Your state has penalties for unlicensed folks doing their own plumbing.
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Author:
stuckinlodi (MO)
Soldering is not brain surgery, but it does involve skill with a hot propane flame in one hand and holding solder in the other hand. If you have never done it before you should probably practice on some scrap copper fittings first. You have to get the copper pipe and the valve both hot enough for solder to flow and seal the connection. Not enough solder around the entire connection and you can have a leak. Too much solder and the excess can flow inside the connection and possibly be a problem. And as mentioned, the inside of the valve has a rubber-like washer at the end of the stem, if you overheat the valve while soldering you will melt or deform the washer. You could remove the handle stem and washer by loosening the nut on top of the valve body and taking the stem out while doing the soldering, then reinstall it later.
How/when/who connected the valve on the other side? Seems like it would have had the pipe added (that you are wanting to add) back when the valve was installed? Are you running a cold water line to another fixture?
Edited 4 times.
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Author:
PlumberManDan (IA)
PROPANE, Please a plumber may not burn the valve up with PROPANE but a DIY'R will, Seen more black valves than I care to think about.
 PlumbCat TM 2003
Plumbermandan
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Author:
PlumberManDan (IA)
Honestly it will take a plumber longer to drive to your house than it will to solder in a valve,that being said you can do it with a good MAPP torch, non-tinning flux and a CLEAN AND DRY environment.. The pipe and fittings MUST be clean ( free of any die lube from the factory and the pipe MUST be cleaned using an open grit sand cloth, there can not be ANY water within the pipe or within at least a foot of the joint you are trying to solder CLEAN AND DRY are the KEY words.
PlumbCat TM 2003
Plumbermandan
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