They can adjust the flow in a pneumatic circuit. Depending on the flow control used, the setting can be made both ways (Bidirectional Flow Control), or just one way (Unidirectional Flow Control). The Unidirectional Flow Control is particularly used to adjust the speed of pneumatic cylinders.
*Maximum working pressure:10 bar / 1 MPa / 145 psi
*Working temperature: 0 to 70 °C / 32 to 158 °F / 273 to 343 °K