| 摘要 |
<p>The key has a drive, and a key bar (12) that is provided with a boom (2). A coupling sleeve (3) is provided underside (5) of key bar, for connection to the shut-off valve. An integrated housing (4) is arranged in the key bar. A motor, control unit and/or power supply are housed in the housing. The housing is detachably connected with the key bar and/or coupling sleeve.</p> |
