PROBLEM TO BE SOLVED: To provide an inspection implement capable of certainly detecting returning abnormality of a slide valve which is constantly energized in the valve closing direction in the slide type gas valve serially integrated with a plug part on which a socket is installed free to connect and disconnect to and from it.;SOLUTION: This inspection implement is constituted of a socket part 1 in which a connecting mechanism free to connect and disconnect like a socket and advancing and retreating shafts 21, 22 built in it free to advance and retreat and energized toward the connecting side (one side) with a plug part, an end part of one 21 of the advancing and retreating shafts is at a position to be inserted into the plug part, the advancing and retreating shafts 21, 22 are at specified setting positions in a non-contact state of the socket part 1 with a gas valve, size of energizing force of the advancing and retreating shafts 21, 22 and their advancing and retreating loci are set so as to be projected in the other direction by a specified distance from the aforementioned set position at the time when the slide stopper connects the socket part 1 to the plug part at the normal valve closing position, and it is constituted so that the above advancement and retreat can be seen from outside.;COPYRIGHT: (C)2001,JPO
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