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The SMC PNEUMATICS AS4002F-13 is an in-line air flow control valve designed to regulate airflow and actuator speed in pneumatic systems. Built with a polybutylene terephthalate body, it accepts 1/2-inch outside-diameter tubing and controls flow in the in-flow direction, making it a one-way flow and speed control device. Operating temperatures range from -5 degrees C to 60 degrees C, suiting it for a broad range of industrial and automation environments. Pneumatic system technicians and automation specialists install this valve inline with tubing runs to manage cylinder speed and airflow volume without requiring additional fittings.
The AS4002F-13 is used in pneumatic control circuits where actuator speed tuning is required. Typical applications include factory automation, assembly line equipment, and industrial machinery where consistent, adjustable airflow control is critical to repeatable cycle times. The in-flow configuration means flow restriction applies to air entering the actuator, giving operators direct control over extension or retraction speed depending on circuit orientation.
Designed as an OEM-style replacement or direct-install flow and speed control valve for pneumatic systems using 1/2-inch OD tubing connections.
Installation should be performed by a qualified pneumatic systems technician. Depressurize and lock out the pneumatic circuit completely before removing or installing any flow control valve. Ensure tubing is cut cleanly and squarely and inserted fully into the push-in fitting to prevent leaks. Adjust the needle valve incrementally after restoring pressure to dial in the desired actuator speed.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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