| 摘要 |
The valve has a cylindrical or square shaped valve body (1) that is closed by a lid (2). The lid is articulated about an axis (3) that is provided parallel to an axis of the valve body, where the lid is pressed against the valve body. Adjustable pressure is exerted by the former axis to obtain a sealing that is necessary to the valve device by the lid in closing position. Edge of the lid is in contact with an end of the valve body. |
