دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

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: a fitting made in parts to clamp onto a pipe to stop a leak or to provide an outlet.

n: see pipe saddle.

a pipe fitting made in parts to weld or clamp onto a line to create a junction.

n: the center bearing on a conventional walking beam pumping unit. It is mounted on top of the samson post. saddle clamp n: see clamp.

n: The weighted bearing that be used to support the saddle.

a bearing that allows the walking beam to move atop the Sampson post in a beam lift pump.

n: a special saddle, or cradle, that holds pipe on a vertical support member in the lowering-up type of pipe laying. The slide-and-guide allows longitudinal movement of the pipe caused by d1ermal expansion and contraction. See lowering-up.

n: a device that secures the end of a bend in the wire rope to the body of the wire rope. A typical safety clamp consists of a U-shaped bolt that is fastened to the wire rope with a saddle-shaped base. Two nuts on the base thread onto the U-bolt to secure the clamp to the rope. Depending on the diameter of the wire rope, which determines the amount of rope that is looped back on itself to secure the rope to the tongs or other device, clamps can vary in number from one to three.