To provide a supply gas valve sealing device, comprising a lock member restraining a handle opening/closing a supply gas valve at the main valve closing position and a cylinder lock for locking the lock member.
This supply gas valve comprises a panel that rotates integrally with the handle, the supply gas valve body rotatably supporting the panel, and a locking through hole formed in the side part of the the supply gas valve body. The locking member comprises a first lock piece securing a lock pin inserted into the through hole at an intermediate position and a second lock piece part pivoted on the first lock piece and forming a frame of generally box-shape in cross section, capable of restraining the handle by fitting onto the projected portion of the handle at a locking member closing position. The second lock piece comprises a receiving hole for receiving the end of the lock pin at the closing position. A pair of through holes, overlapping each other at the lock member closing position, are formed in the first and second lock pieces. The cylinder lock is applied to the through holes to lock it at the locking position.
| JP6892879 | Lockout tagout device and valve |
| WO/2015/020209 | HIGH-PRESSURE AUTOMATIC DIAPHRAGM VALVE |
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FUJISAKI KENGO
ISHII TOSHIHIRO
MIYAUCHI SHINYA
FUKUDA MASAAKI
HANEDA KATSUAKI
YASUDA AKIHIRO
YONEYAMA NORIKATSU
YAMAMOTO KOJI
TAKAHASHI NOBORU
KEIYO PLANT ENGINEERING KK