| 摘要 |
In this double-sealed terminal header, for use in portions of penetration through low-temperature tanks for storing liquefied natural gas or the like: one end of a first annular seal fitting (5) is fixed to an inner circumferential surface of a large-diameter hole portion (11) in a separating wall flange (1); one end of a second annular seal fitting (6) is fixed to a prescribed part of a first outer diameter portion (21) of a ceramic sleeve (2); the first annular seal fitting and the other end of the second annular seal fitting are fixed to one another; one end of a third annular seal fitting (7) is fixed to an inner circumferential surface of a small-diameter hole portion (12) of the separating wall flange; a fourth seal fixture (8) is fixed to a predetermined part of a second outer diameter portion of a small-diameter hole portion of the ceramic sleeve; and the third seal fitting and the other end of the fourth seal fixture are fixed to one another. |
