| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent such an accident that when a packing holder fixing unit is replaced, a packing holder and a packing slip off to cause a fluid, such as LNG, to leak out from the inside of an enclosure to the outside. <P>SOLUTION: A replacement jig for a packing holder fixing unit used on a valve mechanism includes a packing holder clamping portion 23 capable of clamping a packing holder from the outer diameter side in the direction of a valve rod diameter, an enclosure clamping portion 24 capable of clamping an enclosure from the outer diameter side in the direction of the valve rod diameter, a connecting portion 25 capable of fixing and connecting the packing holder clamping portion 23 to the enclosure clamping portion 24 in the direction of a valve rod axis, and a move regulating portion which has one end fixed to the enclosure clamping portion 24 and the other end that comes in contact with a flange to regulate the move of the enclosure clamping portion 24 from the inside to the outside of the enclosure. <P>COPYRIGHT: (C)2012,JPO&INPIT |
