Steam Valve And Power Generation System

Abstract: A steam valve according to at least one embodiment of the present disclosure comprises: a valve body including a steam passage for passing steam and a valve seat that is provided at a midpoint of the steam passage and has an opening; a valve stem that extends in an axial direction along which the axis of the valve stem extends and can move forward and backward in the axial direction; and a stop valve including a first valve body that is fixed at the distal end portion of the valve stem and is brought into contact with the valve seat to close the steam passage. The valve stem is divided into two valve stems: a first valve stem on which the first valve body is fixed and a second valve stem different from the first valve stem. The positions of division of the first valve stem and the second valve stem in the axial direction are located outside a pressure boundary separated from the steam passage in terms of pressure.

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