| 摘要 |
A centering insert device for centering two pipe elements that are to be welded together end to end, the device comprising a central body supporting a plurality of clamps. The clamps located at the center section planes have a circular conforming effect in at least one pair of central section planes of the two pipe elements. The clamps placed in at least one pair of end planes of the two pipe elements are adapted to become blocked against the inside walls of the pipe elements without deforming them, freezing the shape of the pipe elements in their initial state, i.e., their shape prior to the end clamps being actuated to come into abutment against the walls.
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