Check valves are unidirectional flow control devices used to eliminate potential damage caused by backflow. Flow in the desired direction will cause a piston mechanism to open the valve, while backflow causes the valve to close.
Controls the speed of a cylinder or restricts air flow. Simply turn the needle valve to adjust air speed. Both sides have push-on connectors for tubing.
Controls the speed of a cylinder. Simply turn the needle valve to adjust air speed. Screw to your cylinder where the air enters (top, bottom, or both).