| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pressure vessel for a gas-insulated switch gear, for which there is no need for working of screw holes, workability is superior, material cost can be saved, which is light-weight, and in which the reliability for airtightness is high. SOLUTION: This vessel has a structure with plural stud bolts 3 being fixed by a welding part 8 at the outer face side of a flange 2 of the pressure vessel main body 1 having the flange 2, and through-holes 9 which are to be mutually fitted with these plural stud bolts 3 are formed, and that cap bodies 5 having connecting parts 5a to face the outer face of the flange 2 are pressed between the outer faces of the flange 2 and the connecting parts 5a via packings 4 to the outer face of the flange 2 with nuts 6 and washers 7 screwed with the stud bolts 3.</p> |
