Making pipe nipples
Problem: A piping job requires numerous small nipples of various lengths. Buying a large assortment is expensive, and making nipples smaller than 6 in. on a typical threader is difficult.
Problem: A piping job requires numerous small nipples of various lengths. Buying a large assortment is expensive, and making nipples smaller than 6 in. on a typical threader is difficult. Is there an economical way to get the right sizes?
Solution: Get a 2-3-ft length of scrap pipe the same diameter as the nipples needed. Thread one end and put on a threaded coupling. You are now ready to make your own nipples by threading one end of the pipe and cutting the nipple to size.
Inset the threaded end into the coupling of the nipple chuck. Put the nipple chuck into the threader and thread the nipple as you would any pipe. The nipple tightens into the coupling, but is easily removed with a pipe wrench.
A more permanent version of the nipple chick is made by welding the coupling to the scrap pipe. Then weld a bead about 3/8-in. down, parallel to the threads, inside the coupling. This arrangement makes removal of the nipples easier and prevents them from tightening into the coupling too deeply during threading.
Contributor: Tracy W. Faulk, WTB&TS, Brooklyn, NY
- Events & Awards
- Magazine Archives
- Oil & Gas Engineering
- Salary Survey
- Digital Reports
Annual Salary Survey
Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.
There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.
But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.
Read more: 2015 Salary Survey