Tighten pipe nipple without damaging threads... No hex center

Old 07-15-16, 10:47 AM
Thread Starter
Join Date: Jun 2014
Location: Canada
Posts: 1,653
Received 1 Upvote on 1 Post
Tighten pipe nipple without damaging threads... No hex center

I need to use a pipe nipple to join a 3/4" female thread from a pressure tank T to a 3/4" female stop valve.
The nipple is only 2" long and has no hex center. If I use a pipe wrench, won't it damage the threads?
Old 07-15-16, 11:34 AM
ray2047's Avatar
Join Date: Mar 2006
Location: USA
Posts: 29,711
Upvotes: 0
Received 15 Upvotes on 13 Posts
The jaws of a 6" pipe wrench should be narrow enough to fit between the threads on each end. However in this case I sometimes just tighten the nipple in by hand as much as possible, thread the valve on then use a wrench on the valve to tighten both at the same time. One will become tight first and stop turning. Then you continue to turn the valve till the other is tight be it valve or nipple.

A third possibility is an internal pipe wrench to tighten the nipple but I never really found the need to use one. One of the other two methods worked well for me.

Last edited by ray2047; 07-16-16 at 08:16 AM.
Old 07-16-16, 04:57 AM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 36,608
Upvotes: 0
Received 9 Upvotes on 8 Posts
Use Rectorseal pipe thread sealant rather than teflon tape for a better connection and use Ray's suggestion in using the valve as a tightening point.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: