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Galvanized steel pipes - tighten how much?

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Galvanized steel pipes - tighten how much? GreatArtist 11-20-2006
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Posted by GreatArtist on November 20, 2006, 5:29 pm


I had to install a new kitchen faucet. After I removed the old faucet,
the galvanized steel nipples were too damaged from corrosion so I
removed them. Then I put in new nipples, using teflon paste. How tight
am I supposed to tighten them? Am I supposed to keep turning until it's
very hard to turn or what? So far I only tighted them enough to not
leak, because I didn't want to damage the old galvanized steel pipes,
which are very old. The amount of force I had to use was not very much
(using a vice grip).


Posted by on November 20, 2006, 5:37 pm


Somewhere between a gentle nudge and full force. You should not put
all your weight into them. If you have them to where they don't leak,
give it a pinch more, and that should do it.


Posted by deans@wdeans.com on November 20, 2006, 7:59 pm



GreatArtist wrote:
> I had to install a new kitchen faucet. After I removed the old faucet,
> the galvanized steel nipples were too damaged from corrosion so I
> removed them. Then I put in new nipples, using teflon paste. How tight
> am I supposed to tighten them? Am I supposed to keep turning until it's
> very hard to turn or what? So far I only tighted them enough to not
> leak, because I didn't want to damage the old galvanized steel pipes,
> which are very old. The amount of force I had to use was not very much
> (using a vice grip).

I was once told to tighten 1" black pipe to 50 ft-lb. I believe that
puts an "upper limit" on how tight you should make the nipple.

Hope this helps,
William


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