Abstract: A device for effecting a link pipe seal between aligned portions of conduit. This device has a body portion (22) which may be affixed to any given structure and one portion of the tubing or piping (14) to be joined is clamped therein. The body provides for axial alignment of a second piece of tubing or piping (12) and carries a swing clamp (34) for engaging the second piece of tubing or piping whereby the second piece is moved axially toward the first piece to effect the seal. The motion of the swing clamp is accomplished by a left-handed threaded bolt (42), threadably engaged with the swing clamp and carried by the body as the pivot element for the swing clamp. Frictional engagement between the swing clamp and the threaded bolt brings about movement of the swing clamp between first and further preselected rotational positions as the bolt is rotated.