Abstract: A device for shutting off a pipe, the pipe allowing fluidic circulation of at least one fluid, the shut-off device having an in-line shut-off means for shutting off the pipe in a sealed manner and, conversely, for opening the pipe, an upstream valve arranged upstream of the in-line shut-off means, and a downstream valve arranged downstream of the in-line shut-off means. The shut-off device has an interlocking system for interlocking a member for tightly closing the in-line shut-off means with, for the one part, an upstream control member of the upstream valve and, for the other part, a downstream control member of the downstream valve, the interlocking system being movable in translation in a direction OX between a first end position and a second end position, the interlocking system having at least three separate parts assembled together.

Abstract: A device for shutting off a pipe, the pipe allowing fluidic circulation of at least one fluid, the shut-off device having an in-line shut-off means for shutting off the pipe in a sealed manner and, conversely, for opening the pipe, an upstream valve arranged upstream of the in-line shut-off means, and a downstream valve arranged downstream of the in-line shut-off means. The shut-off device has an interlocking system for interlocking a member for tightly closing the in-line shut-off means with, for the one part, an upstream control member of the upstream valve and, for the other part, a downstream control member of the downstream valve, the interlocking system being movable in translation in a direction OX between a first end position and a second end position, the interlocking system having at least three separate parts assembled together.

Abstract: A static sealing gasket of elastically deformable type, the gasket extending in elevation parallel to an axial direction perpendicular to a join plane, the gasket forming a closed loop around the axial direction and presenting a cross-section in each transverse half-plane of shape making it possible to ensure that the gasket is properly positioned inside a groove of a substantially complementary shape. Such a gasket comprises a body made of elastically deformable material, each cross-section of the gasket at rest being a polygon that is not regular and that is transversely asymmetrical.