Fleyenda AT Series Pneumatic Actuator
Fleyenda AT Series Pneumatic Actuator
The Fleyenda AT Series Pneumatic Actuator delivers precise and fast valve automation with a dual-piston rack-and-pinion design. It supports double-acting and single-acting (spring return) modes, offers adjustable rotation angles, and complies with ISO5211, DIN3337, and NAMUR standards. Ideal for driving ball valves and butterfly valves in industrial, HVAC, and water treatment applications.
| Output Torque Range | 10 Nm – 4000 Nm |
| Rotation Angle | 90° ± 5° adjustable |
| Ambient Temperature Range | −20 °C to +80 °C |
| Body Material | Hard-anodized aluminum alloy |
| Connection Standard | ISO 5211 / NAMUR VDI/VDE 3845 |
| Actuator Type: | Rack and pinion, double-acting or spring-return |
| Voltage Options | 24 V DC (for solenoid valve control) |
| Control Signal Type | 3/2-way or 5/2-way pneumatic; 4–20 mA or 0–10 V with positioner |
| Protection Grade | IP65 / IP67 (optional IP68) |
| Design Standard | ISO 5211 / EN 15714-3 |
| Testing Standard | ISO 9001 / EN 12266 / API 598 |
| Certification | CE / RoHS / ISO 9001 / IP65 (Actuator) |
| Customization | Above Are Standard Parameter Samples. If You Have Specific Parameters And Materials, We Can Customize Them All. |
Certified Quality for Industrial Valve Applications
Fleyenda valves and electric actuators are built for stable performance, reliable operation, and long-term industrial use. With certified quality support, they are suitable for water treatment, chemical processing, automation, and industrial process control systems.
FAQs That 80% Users Interest
1. What factors determine how fast a Pneumatic Actuator can operate?
• Cycle speed depends on air pressure, bore size, and flow rate within the system.
• Rotary types are affected by travel angle and spring tension in spring-return models.
• Smooth airflow through valves and flow controllers improves actuation response.
• Proper sizing and precise alignment reduce friction and ensure consistent performance.
2. How do I choose the right size and mounting for my Pneumatic Actuator?
• Determine valve torque and rotation angle before selecting actuator size.
• Match the mounting interface to ISO 5211 or NAMUR VDI/VDE 3845 standards.
• Choose quarter-turn, multi-turn, or linear actuation based on valve type.
• Select between double-acting and spring-return types depending on safety needs.
3. What maintenance extends the lifespan of a Pneumatic Valve Actuator?
• Keep compressed air clean, dry, and oil-free to protect seals and bearings.
• Inspect seals, bolts, and end-caps regularly to prevent air leakage or corrosion.
• Monitor actuator stroke and travel stops for wear or misalignment.
• Use proper lubrication and ensure filters are maintained for smooth cycling.
4. Can a Pneumatic Actuator work in harsh or hazardous environments?
• Industrial-grade models operate under extreme temperatures, moisture, and dust.
• Check IP65/IP67 protection for outdoor or corrosive applications.
• Use ATEX or SIL-certified versions for explosive or safety-critical zones.
• Select corrosion-resistant coatings and materials for chemical or marine use.