| 摘要 |
PURPOSE: To prevent an end surface part of a coupling member for a valve rod from causing a crack and the like. CONSTITUTION: A reaming hole 3r fit in a body part 2a of a valve rod 2 is formed at the inserting side of a tapped hole 3a of the coupling member 3 and the body part 2a of the valve rod 2 is fit in the reaming hole 3r of this coupling member 3 to connect them. Two-pieces divided parts 31 and 32 are formed so as to form a gap 3d between engaging surfaces of the two pieces divided parts of this coupling member 3 when the two pieces divided parts 31 and 32 of the coupling member 3 are clamped by a clamping bolt/nut 7 and 8. |
