| 摘要 |
<p>The pipe joint (10) is a pipe joint (10) for connection of a connecting pipe (101), and has a pipe joint body (20) and a nut member (30). When the connecting pipe (101) having formed therein a bulging portion (101a) that bulges in the diametrical direction is connected to this pipe joint (10), a male thread portion (25) of the pipe joint body (20) threadably mates with a female thread portion (33) of the nut member (30), thereby wedging the bulging portion (101a) between a tapered surface (22) and a tapered surface (34). The joined sections of the bulging portion (101a) and of the tapered surface (22) form a first seal portion, while the joined sections of the bulging portion (101a) and of the tapered surface (34) form a first seal portion. The tapered surface (24) of the pipe joint body (20) is joined to the tapered surface (34) of the nut member (30), forming a third seal portion.</p> |
