| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable a device to surely prevent a leak from a connection part by a relatively simple structure, while maintaining simplicity of mounting/ demounting work. SOLUTION: This device is constituted such that the fellow flanges 11, 13 are placed mutually butt, two pipe parts 10, 12 are water-tightly connected through a mounting/demounting mechanism 14. Here, between these flanges, a retaining ring 20 is provided, in its internal peripheral side, a floating ring 26, where force received from fluid by a pressure receiving surface toward the first flange 11 is increased larger than force received by a pressure receiving surface toward the second flange 13, is stored fine movably along a flow direction.</p> |
