FIELD: measurement equipment.
SUBSTANCE: tightening mandrel (200) is provided. Tightening mandrel (200) includes plate (206) of tightening mandrel. At least one cut-out (201) is made in plate (206) of tightening mandrel. Tightening mandrel (200) also includes at least one petal (202) being at least partially deformed, located at least near one cut-out (201) and drawn out of plate (206) of tightening mandrel. Tightening mandrel (200) can be brazed to flow tube (205). At least one petal (202) allows the penetration of brazing filler into connection assembly (210) formed between at least one petal (202) and flow tube (205).
EFFECT: possibility of providing rather large cut-out in the tightening plate so that the flow tube can be arranged without any damages to it; at that, minimum gap is provided, as well as the connection of tightening plate to flow tube(s) is provided by brazing so that brazing filler can fill in the whole gap without any cavities.
20 cl, 3 dwg
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