| 摘要 |
PURPOSE:To improve work performance at the time of valve assembling- disassembling time and heighten maintainability. CONSTITUTION:In a main steam separating valve with a valve element fitted in the freely reciprocating state in a valve casing 11 so as to open/close a fluid passage, valve element drive mechanism 14 is fitted to the valve casing 11 through a Grayloc joint 24, removably from a valve cover 58 or the valve casing 11, and a valve element drive mechanism 14 fitting/removing part 22 is provided to connect-support and fit/remove the valve element drive mechanism 14 in relation to the valve cover 58 or the valve casing 11. A valve stem 13 connected to the valve element 12 is connected to the valve element drive mechanism 14 by a valve stem fitting/removing part 19, and an independent removable type gland part 20 slidingly seals a space between the valve cover 58 and the valve stem 13. |
