| 摘要 |
PROBLEM TO BE SOLVED: To allow sufficient airtightness using an O-ringless, and to fully secure attaching strength for a vortex-detecting member. SOLUTION: In this vortex flowmeter, an engaging part 23 of the vortex detecting member 21 made of fluororesin is engagement-inserted into a vortex-detecting member attaching hole 18 of a measuring instrument body 11 made of the fluororesin, a ring-like protruded part 25 formed in the outer circumference of the engaging part in the vortex-detecting member 21 is thereby pressed against an inner circumferential face of the vortex-detecting member attaching hole 18 to be elastically deformed, and air-tight sealing is carried out by elastic deformation. COPYRIGHT: (C)2005,JPO&NCIPI
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