| 摘要 |
PROBLEM TO BE SOLVED: To provide a piping joint superior in installation workability, by eliminating risk of leaking a refrigerant, even when applied to a refrigerating circuit of a carbon dioxide refrigerant. SOLUTION: This piping joint is characterized by having both a seal part using a rubber O ring for sealing a connecting part by being crushed in the radial direction of a flow passage and a metal seal part arranged in an outside position in the radial direction of the flow passage of the seal part. COPYRIGHT: (C)2008,JPO&INPIT
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