دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: in pipeline construction, a track-mounted hydraulic machine that bends a joint to the precise angle specified by the bending engineer. The bend is made by a set of clamps that grip the outside surface of the pipe and prevent slip- page while a winch cable hooked to the free end of the pipe maintains upward pull and guides the pipe through the machine.