| 摘要 |
A both sides direction junction coupling device for airtightness is provided to prevent a plug ring fitted into a connector body from being released outsides by high pressure acting inside a pipe. A connector(10) consists of a capnut connection parts(12,12') in which male screws(121,121') are formed on both sides of peripheral part of a hollow connecting body(11). A packing settling unit(122) in which packings(40,40') inserted to the inner surface of the inlet of each capnut connection part in plug rings(30,30') are placed is integrally formed. A plug ring comprises the respective pressing ring parts(31,31') which contact with the outer periphery of the hollow type.
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