| 摘要 |
The control valve has a valve body biased against a valve seat, a controller for moving the valve body and a movable pressure equalization element (8) subjected to the pressure difference between two pressure chambers (1,2) and connected to the valve body to balance the forces of the pressures acting on the valve body. The pressure chambers are sealed with respect to each other near the pressure equalization element, which has a membrane (9) for separating the chambers. |
