| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for installing a valve casing capable of preventing a boring means from damaging the valve casing side by a load generated in boring without enlarging an opening flange of the casing. <P>SOLUTION: A fixture 5 is interposed detachably between an opening flange 3b of a casing 2 and a case body 8, and a hole 1c is formed at a fluid pipe 1 in the casing 2 by a forming means 9b provided in the case body 8, and a valve casing 13 is inserted into the case body 8 to be installed in a sealed state on the opening flange 3b of the casing 2, and then the case body 8 and the fixture 5 are detached from the opening flange 3b of the casing 2. <P>COPYRIGHT: (C)2013,JPO&INPIT |
