| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealing ring made of a PTFE so as to give an effective sealing property under a low pressure by preventing an axial gap of end faces forming mating faces. SOLUTION: The mating face 2 is arranged on a part of a circular body 1 made of the PTFE, and one end face of the opposing end faces forming the mating faces 2 is set to be a convex cut face 3a that becomes the vertex of a central portion of a width in an axial direction. The other end face is set to be a concave cut face 3b fit into the convex cut face 3a, and an axial gap is prevented by engagement between the convex cut face 3a and the concave cut face 3b. COPYRIGHT: (C)2006,JPO&NCIPI
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