Pneuforce NASC-15 is a inline adjustable flow control valve. Adjust the needle restriction to set airflow through the pneumatic circuit. Determine whether the application requires meter-in or meter-out control; mounting direction affects the result.

The primary port designation on this model is 1/2 NPT. Some multiport valves use different exhaust-port dimensions; consult the full product data before selecting fittings.

Meter-in restricts air entering an actuator; meter-out restricts air leaving it. Cylinder speed control commonly uses meter-out to resist overrunning loads.

The source specification lists an adjustment lock nut for this series. Tighten it after setting the required airflow.

Verify model number, pressure and temperature limits, air preparation, direction of flow and the port/thread arrangement against the system design.