| 摘要 |
Planar flange 1 has a mounting hole formed through it having portions formed of different diameters 1', 3 the wider portion receiving an annular resilient sealing member 4. The pipe P has a radially expanding annular portion P'' engaged with the peripheral edge 1' of the mounting hole. Within the mounting hole, the end 5 of the pipe is enlarged or a part of the pipe-diameter portion is radially expanded to press the resilient sealing member 4 and to clamp the radially inwardly projecting peripheral edge 1' of the mounting hole between the radially expanded portion P'' and the enlarged end or radially expanded end portion 5, thereby fixedly connecting the flange and the pipe. <IMAGE>
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