| 摘要 |
The valve has a sealing unit (3) cooperating with an actuator and a valve seat. The sealing unit includes two segments (3.1, 3.2), where the segment (3.2) slides transversally to an axis of the valve. A casing has an actuator chamber (10) and a pressure chamber (11). The segment (3.1) traverses a guiding channel (13) to reach the pressure chamber, and the segment (3.2) is placed in the pressure chamber. |
