DEVICE FOR SEALING AND RETAINING A SEALING CAP OF A STEAM GENERATOR TUBE

摘要

The device comprises a threaded shank (rod) 11a capable of being screwed into the tapped bore 10' passing through the core 10 and solidly attached, at one of its ends, to a blocking element 11b whose outer diameter is greater than the diameter of the shank 11a, which is intended to engage in the end 7 of the casing 4 of the plug 3 opposite the closure end 5 of the plug, when the threaded shank 11a is screwed into the core 10. The blocking element 11b is provided with means 13 interacting with the end of the casing 4 of the plug in order to produce the rotational and/or translational blocking of the closure device 11. IMAGE