UNIT FOR CONNECTION OF BRANCH TO PIPE Russian patent published in 2025 - IPC F16L41/04 

FIELD: pipeline fittings.

SUBSTANCE: invention relates to pipeline valves, in particular, to devices for tapping a branch into an operating pipeline, mainly a free-flow pipeline of an internal sewage system. Assembly for connection of branch to pipe comprises connecting branch pipe with external thread for tension nut, one end of which is made with possibility of branch connection, and the other one is equipped with flange part arranged in pipe hole. A clamping element with a saddle-shaped surface, which repeats the shape of the external surface of the pipe, and a seal placed in a seat on the saddle-shaped surface, pressing this seal to the pipe when tightening the tension nut installed on the branch pipe, is installed on the branch pipe with the possibility of linear sliding. Essence of the solution lies in the fact that the flange part of the connecting branch pipe is made asymmetrically elongated along the axis of the pipe with the formation of sections of different lengths which lie opposite to the branch pipe, forming the maximum transverse dimension of the flange part, which does not exceed the diameter of the pipe hole, and the total longitudinal size, which is greater than the diameter of the pipe hole by the length of the larger section.

EFFECT: improving connection reliability of the assembly with the pipe due to increasing the contact area of the connecting branch pipe with the pipe with simultaneous exclusion of the dependence of the dimensions of the flange part of the connecting branch pipe on the diameter of the hole in which it is installed.

5 cl, 8 dwg