A protruding rim, edge, rib, or collar, as on a wheel or a pipe shaft, used to strengthen an object, hold it in place, or attach it to another object.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "flange" in a sentence
"Last week, as you remember, we removed the stub of the riser pipe and we put in what we call a flange spool."
"While about 3 to 6 feet of the broken south tower legs and the other wide flange is still in place."
"That paved the way for the installation of a pipe-like connector called a flange spool that will sit on top of the spewing well bore."