| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint having high airtightness at a connection part in connecting a flexible pipe to a sprinkler head mounting pipe. SOLUTION: In this pipe joint, air tightness is maintained by pressing a packing between the flange of the flexible pipe and the mounting pipe with the tightening of a cap nut. A tapered cutout is formed in the opening end inner diameter surface of the mounting pipe. COPYRIGHT: (C)2005,JPO&NCIPI
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