| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a ball segment valve capable of standardization by simplifying working and assembling. SOLUTION: A valve chamber 23 provided with a circular annular valve seat 28, spherical lacked valve unit 26 rotatable with a rotary shaft 49 serving as the center, rotary mandrel 41 extended by penetrating one side surface of the valve chamber and a journal bar 43 are included, the rotary mandrel and the journal bar are connected to each other by a bow-shaped part 42 for forming a rotary unit 25. The journal bar is mounted in a cover 24 covering a hole, this hole is sufficiently large to a degree such as capable of inserting the rotary unit to its desired operating position through this hole. A set of legs 46, 47 connected to the rotary mandrel and the journal bar are provided in the bow- shaped part with a frame, the valve unit is mounted on the frame.</p> |
