Unions and Nipples

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Unions and Nipples

 

(in Russian, shtutser). A union or a nipple is a pipe fitting that is used to attach piping or a pipe joint to various tanks or pipelines. A union is a sleeve, while a nipple is a short piece of tubing. One of the ends of a union or a nipple has an internal or external screw thread; the shape of the other end depends on the method used to connect the fitting to adjoining parts.

The term “nipple” is also applied to a short piece of tubing of small diameter (10–20 mm) that is used to draw off water or air or to tap a liquid from piping in order to measure the pressure of the fluid.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.