| 摘要 |
PROBLEM TO BE SOLVED: To enable a seal ring in a seal groove to be easily removed.SOLUTION: A pressure container A comprises: a seal groove 27 communicated with an end part opposite to a storing space 11 in an interface S between a cylindrical part 15 and a ferrule 20 and having an opening 28 for removal; a first seal ring 51 closely contacted with the inner circumferential surface of the cylindrical part 15; a second seal ring 52 closely contacted with the outer circumferential surface of the ferrule 20; a holder 34 removable with respect to the seal groove 27; a first seat part 35 oppositely facing against the opening 28 for removal of the seal groove 27 with respect to the first seal ring 51; a second seat part 36 constituting the holder 34 oppositely facing against the opening 28 for removal with respect to the second seal ring 52; and an operating part 45 for removal adjacent to the storing space 11 when the holder 34 is stored in the storing space 11.SELECTED DRAWING: Figure 2 |
