| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a flange fitting of a hose fitting capable of sealing without an O-ring, allowed to be repeatedly tested, and capable of lowering the test cost, and preventing generation of dust. SOLUTION: The reference numeral 1 designates a test hose, and 3 designates a hollow cylindrical hose fitting mounted through a socket 2. The reference numeral 4 is a hollow cylindrical adapter connected to a high pressure fluid supply source, and 5a, 5b designate abutting end faces of the hose fitting 3 and the adapter 4. A counter bore surface 9 tapered toward the center of the inside is formed in the abutting end face 5a of the hollow cylindrical hose fitting 3, and a projecting part 11 having a tapered inclined surface 10 fitted to the counter bore surface 9 is integrally formed on the abutting end face 5b of the adapter 4.</p> |
