1/8" BSP ultra sensitive flow control valve available with standard or lock nut style knob in unidirectional and bidirectional versions.
Unidirectional version restricts the flow in one direction only (full flow in the other) and is often used for control of cylinder speed.
Bidirectional version restricts flow in both directions.
The ultra sensitive flow control valve has a finer pitch on the adjustment thread than the standard version, which gives more accurate control over the air flow.