FIELD: engineering industry; connective devices of pipelines.
SUBSTANCE: in connective device containing end sections of two connected pipelines for fluid and connection element, having external and internal sides passing round an axis; on a circle of end sections there are the first lock edges in their environing direction. On connection element inside there are the second lock edges in its environing direction near to its each axial end. Connection element at elastic expansion is joined with end sections, and one end section is hermetically joined with other end section. The second lock edges are acquired for the first lock edges. For danger reduction of the dirt entry in a junction of end sections and their inadvertent disconnecting, connection element represents the sleeve closed on circle having the shape of the circular cylinder and stiff in flexure segments passing on circle, containing elastic extensible material.
EFFECT: connection reliability growth.
14 cl, 19 dwg
