| 摘要 |
PURPOSE:To eliminate the need of a special seal material so as to improve reliability of a seal by connecting a flange welded on the outer periphery of one end part of a tubular coupling member to a connected member by a bolt, and connecting a pipe to the other end part where a pipe connecting tool engaging part of the tubular coupling member or the like is disposed. CONSTITUTION:A flange 1 is welded on the outer periphery of one end part of a tubular coupling member 2. A pipe 8 is inserted in the interior of the tubular coupling member 2 from the other end part and two fastening sleeves 3, 4 are fastened by a nut 5 to fix the pipe 8. Further, a bolt insert hole 9 is bored in the flange 1, and a flange connecting bolt 6 is inserted in the hole to connect the flange 1 to a connected member C. On the other hand, a male screw 1 and an engaging part 11 of a pipe connecting tool are respectively formed on the outer periphery of the other end part of the tubular coupling member 2. The distance A between the flange 1 and the engaging part 11 is set larger than the total length B of the flange connecting bolt 6. Thus, the bolt fastening tool is prevented from interfering with the engaging part 11. |
