FIELD: pipeline transport, applicable at repair and construction of pipelines. SUBSTANCE: the device uses a detachable framework, whose links are made in the form of a circumference, hinge-joined to one another and furnished with supports enveloping the pipe. The framework is made up of three links forming an equilateral rigid load-bearing triangle. Each link envelops the pipe surface at a central angle of 120 deg., and each support is installed on one of the sides of each link and coupled to the drive of its radial movement. EFFECT: simplified procedure of elimination of pipe ellipticity and alignment of pipes at repairs. 5 dwg
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