FIELD: engineering industry.
SUBSTANCE: invention refers to tubular threaded connections. Tubular threaded connection consists of a male tubular element including a male threaded part, and a female tubular element that includes a female threaded part that is connected by being screwed with the male threaded part. Threaded connection includes at least one movement zone that can transfer bending load between elements and that is separated axially from threaded parts wherein male and female elements have corrugated surface and plain surface facing each other. Corrugated surface consists of a number of rounded annular ribs that come into contact with plain surface with radial overlapping with tightness.
EFFECT: improving connection reliability.
34 cl, 4 dwg
