Enhanced Visibility and Scale: Many models feature a scale window for numerical flow management, with some including a vernier for precise 1/4-scale settings. The scale is visible from 360 degrees, improving accessibility for inspection and maintenance.
Ergonomic and Efficient Operation: The push-to-lock mechanism enhances needle valve locking operation, making setup faster and reducing setup time and potential errors. Some models also have a larger knob diameter (approximately twice as large) for easier adjustment.
Space-Saving and Lightweight Design: The compact design saves space, and some models achieve weight reduction of about 27%.
Easy Installation and Connection: Tube insertion and removal are facilitated with reduced insertion force (by up to 30%) and withdrawal force (by up to 20%) while maintaining pull-out strength. The 360° free orientation piping capability (in elbow/universal types) allows for flexible installation.
Durability and Specialized Specifications: Constructed with metal bodies (e.g., zinc alloy) or specific materials for standard use, with some offering stainless steel for corrosion resistance. Non-electrolytic nickel plating is standardized for some components. Options include cleanroom (low-dust generation) and corrosion-resistant models.
Integrated Functions: Certain variants combine a speed control valve with other functions, such as a residual pressure release valve (for one-button exhaust) or a pilot-operated check valve (for cylinder speed control and temporary intermediate stopping).
SMC's AS series speed control valves are primarily used to control the speed of pneumatic actuators by regulating the flow of compressed air.
Low-Speed Control : Specifically designed for low-speed control applications, such as achieving cylinder movement speeds between 1 mm/s and 50 mm/s, or 50 mm/s and 150 mm/s.
General Speed Regulation in Pneumatic Systems : Used for meter-out flow control (typically exhaust port throttling) in one direction, while allowing free flow in the opposite direction via a built-in check valve. This enables easy and constant speed setting.
Applications Requiring Compact and Efficient Components : Their space-saving and lightweight design makes them suitable for compact machinery and systems where efficient use of space is important.
Specialized Environments : Specific types are available for use in cleanrooms (low-dust generation) and environments requiring corrosion-resistant materials.
I hope this translation and summary is helpful for your understanding of the SMC AS series speed control valves. If you require more specific information regarding a particular model or application, feel free to ask.




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