دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

clamshell-type rings of anodes that clamp around a pipeline.

n: a cable on a pumping unit, looped over the horsehead and connected to the carrier bar to support the polished rod clamp. See sucker rod pumping.

n: yoke or clamp fastened to a pumping wells polished rod and to which the bridle of the pumping units horsehead is attached.

n: This kind of thread presents trapezium. Clamping and transmiting axial force depend on the heel and top of thread.

n: a mechanical device used to hold an object in place. For example, a leak-repair clamp, or saddle clamp, holds a piece of metal with the same curvature as the pipe over a hole in a line, effecting a temporary seal. A wireline clamp holds the end of a wire rope against the main rope, while a polishedrod clamp attaches the top of the polished rod to the bridle of a pumping unit

n: The centralizer that can connect with any round surface tool. Consisted by blade centralizer, collar clamp and arrester.