FIELD: pipe line engineering. SUBSTANCE: joint has two pipes enameled from inside and bushing that is also enameled from inside and mounted coaxially inside the pipes with a spaced relation in the zone of the butt. The outer side of the bushing is provided with a ring groove. There are also radial stop projections that are made in block with the bushing body. Between the groove on the bushing and inner side of the pipes is a space filled with an adhesion material. Between the outer side of the ends of the bushing and inner side of the pipes is an adhesive material as well. EFFECT: enhanced reliability. 2 cl, 2 dwg
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