Stud tensioning device, in particular for the bolting of covers and in particular of pressure vessels of reactors.

摘要

The stud tensioning device according to the invention, which is preferably provided for the bolting of covers of pressure vessels of reactors, comprises in order to produce a traction-resistant coupling of an extension element (6) with the end d a stud (1) to be subjected to traction a coupling device (14) which comprises several coupling segments (20) arranged around the coupling ends of the stud and the extension element and arranged at the inside of a coupling sleeve (16), the arrangement being made so that the coupling of the extension element with the stud can be obtained when the coupling sleeve is rotated.