| 摘要 |
A joining device (1) for components in fluid conveyance and distribution systems comprises a tubular portion (2); a connection flange (3) obtained as one piece with a first end (4) of the tubular portion (2); one or more seats (5) obtained in an outer surface (6) of the tubular portion (2) in the proximity of a second free end (7) thereof; at least one withdrawal-prevention insert (8) couplable with the seat (5) so as to form a shoulder radially projecting from the outer surface (6); a ring nut (9) having a countershoulder (10) configured so that, once the withdrawal-prevention insert (8) has been disconnected from the seat (5), the ring nut can be inserted onto the tubular portion (2) and extracted therefrom, and, when the withdrawal-prevention insert (8) has been coupled with the seat (5), the withdrawal-prevention insert (8) engages the ring nut (9) countershoulder (10), thus connecting the ring nut in an integral manner, under traction, to the tubular portion (2).
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