| 摘要 |
The invention relates to a pipe coupling comprising a socket component and an in sert component which is partially insertable to securely fit into the socket componen t. A ring groove between the socket component and the insert component is sealed by a ring seal. The socket component is releasably connected to the insert component by means of a union nut which contacts a shoulder of the insert component rearwardl y for joined movement into the closed position. The union nut is screwed onto the socket component along a cylindrical and/or conical exterior thread. The ring ga p between the union nut and the insert component is sealed. The ring gap between t he union nut and the socket component is also sealed. The thread connection between the socket component and the union nut is positioned between the two sealing positions.
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