| 摘要 |
A fitting for corrugated metal tubes comprises a threaded nipple (3) for connecting a corrugated tube (2) to another corrugated tube or component of a piping network or system, a tightening collet (4) suitable for being radially plastically deformed to block in an airtight manner the end of said corrugated tube to the nipple, and a threaded nut (5) suitable for being screwed to the nipple so as to cause the radial deformation of the collet. The tightening collet (4) has an annular projection (15) on its outer surface suitable for being axially engaged by the threaded nut (5) so that the collet is made to advance towards the threaded nipple (3) during the screwing of the nut to the nipple. Moreover, when the threaded nut is completely screwed to the nipple, a guide end portion (45) of the tightening collet protrudes axially from the nipple-nut assembly so as to act as a guide and protection for the corrugated tube. |
