Patent ID: 6086116
Filing Date: 2000-07-11
Classification: F16L

Abstract:
In a combination of a pipe (4) and bent pipe or branch (1) for joining the pipe (4) with the bent pipe or branch (1), the improvement of the bent pipe or branch (1) comprising a bent body (2) and sleeve portions (3a, 3b), wherein the inner diameter of the sleeve portions (3a, 3b) is substantially equal to the exterior diameter of the pipe (4) and the inner diameter of the body (2) is less than the exterior diameter of the pipe (4), so that a step is provided between the body (2) and the sleeve portions (3a, 3b), the sleeve portions (3a, 3b) are eccentrically disposed relative to the body (2), the sleeve portions (3a, 3b) are 0.75-1.25 times a wall thickness (e) of the pipe (4) and, in the inner corner (5) of the body (2), the maximum height of the step is 0.75 or less times the height of the step at the outer edge of the body (2), and the distance of the end of the pipe (4) from the inner corner of the body in the axial direction of the pipe (4) is less than three times the wall thickness (e) of the pipe (4).