Check valve with pilot control
![](../res/img/uni_lang/hyd/Hyd.ShutoffValve.CheckValvePilotToOpen01.png)
![](../res/img/uni_lang/hyd/152852.jpg)
If the input pressure is higher than the output pressure, the check valve opens. Otherwise it is shut. In addition, the check valve can be opened via a control line, allowing flow in both directions.
Adjustable parameters
Designation | Range | Default value |
---|---|---|
Area ratio | 0.1 ... 10 | 3.3 |
Hydraulic resistance | 1e-6 ... 1000 bar.min2/l2 | 0.093 |