The one way flow control valve is not usually used in the unit pneumatic system, mainly work with other directional valve. They supply the great assistance to the directional valve. It is a basic element for changing air flow direction in pneumatic system.
Specifications
1:RE Series Air Flow Control Valve 
2:Use to control the air flow of air system 
3:Port size: 1/8, 1/4, 3/8, 1/2 
4:Good quality
Feature:                                                                                                 
1:FC-01, FC-02, FC-03, FC-04 Series flow control valve.
2:Use for control the air system. 
3:Port size:  1/8", 1/4", 3/8", 1/2"
4:Good quality, easy to control and maintain.