| 摘要 |
FIELD: machine building. ^ SUBSTANCE: invention relates to connections of pipelines. It is described modular tubular member for pipeline structures, including pipe of circular section and specified length, allowing the first covering end portion and the second covering end portion with complementary shapes, so that the first covering end portion of the first modular tubular member is butt to the second covering end portion of the second modular tubular member, providing gas-tight joint between the first and the second tubular members. The first covering end portion of pipe contains thread segment at its end, corresponding to the first end of this pipe, and adjacent intermediate tightening section, allowing in essence barrel-like shape. The second covering end portion of pipe contains in essence parallel portion at its end, corresponding to the opposite second part of mentioned pipe, and adjacent intermediate thread segment. ^ EFFECT: invention increases reliability of joint. ^ 11 cl, 4 dwg |
