| 摘要 |
<p>The method involves opening a smaller valve (2) to lower the gas pressure difference on a larger valve (3) that is arranged parallel to the valve (2), such that the valve (3) is depressurized. The valve (3) is then opened. Two valve locking units are arranged in a valve housing, where one valve locking unit is connected with another valve locking unit via an arresting device. An independent claim is also included for a valve arrangement for controlling gas flow.</p> |
