| 摘要 |
The valve has a shut-off device (13) with a flow duct (31), and a lateral duct (43), which opens on one side in a flow duct and opens on another side in device surface. The lateral duct has a flow path between an inlet and an outlet. A seat seal is arranged with permeability in an area between a valve body (3) and sealing surfaces (33, 35) against the device. The permeability is provided by a transmission duct (45). |
