| 摘要 |
PROBLEM TO BE SOLVED: To provide a steam valve device which balances heat resistance and pressure resistance performance and workability of manufacture and maintenance, and to provide a method for assembling the steam valve device.SOLUTION: The steam valve device includes an outer casing, an inner casing, a sleeve material, an opening part, and an opening part opening/closing mechanism. The outer casing has an introduction part which introduces steam. The inner casing is accommodated in the outer casing and has a penetration part in the position corresponding to the introduction part of the outer casing. The sleeve material is inserted so as to communicate with the introduction part of the outer casing and the penetration part of the inner casing. The opening is provided on an axis line of the introduction part of both the outer casing and the inner casing. The opening is used for linearly attaching and detaching the sleeve material in the direction of the penetration part or the introduction part. The opening part opening/closing mechanism closes the opening part and can open the opening part when attaching and detaching the sleeve material. |
