| 摘要 |
PROBLEM TO BE SOLVED: To provide a seal ring element for tube connection which is high in watertightness and facilitates a connection work. SOLUTION: The seal ring element for tube connection is used when the tube end of the one tube is fitted in the tube end of the other tube for connection. The seal ring element is characterized in that an annular space part annularly surrounding the ring element is formed in the internal part of the ring element, the sectional shape of the annular space is formed into a circular or an oval shape, and a cut part to intercommunicate the annular space part and the external part of the ring element is formed between the outer peripheral surface side of the ring element and the annular space in a manner to surround the ring element. COPYRIGHT: (C)2004,JPO&NCIPI
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