Fleyenda QT Series Electric Actuator
Fleyenda QT Series Electric Actuator
The QT Series ON/OFF, Regulating, Intelligent, IP68, EX actuator combines an IP68 and Ex d IIB T4 housing with stable torque output to ensure precise valve control in harsh or hazardous environments, delivering reliable operation supported by its 50–3000 Nm range, ISO 5211 mounting, and 4–20 mA/Modbus compatibility.
| Output Torque Range | 50–3000 Nm |
| Rotation Angle | 90° ±5° |
| Ambient Temperature Range | –20°C to +70°C |
| Body Material | Hard-anodized aluminum alloy |
| Connection Standard | ISO 5211 |
| Actuator Type: | ON/OFF, Modulating, Intelligent |
| Voltage Options | AC220V, AC110V, AC380V, DC24V |
| Control Signal Type | Dry Contact, 4–20 mA, 0–10 V, RS485/Modbus |
| Protection Grade | IP68, Ex d IIB T4 (optional) |
| Design Standard | ISO 5211, IEC 60034, IEC 60079 |
| Testing Standard | IEC 60529, EN 61000-6 |
| 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 torque range is recommended when selecting the QT Series ON/OFF, Regulating, Intelligent, IP68, EX for valve automation?
• Choose a torque rating 20–30% above the valve’s operating torque
• The QT Series electric actuator supports 50–3000 Nm for ball and butterfly valves
• Oversizing ensures reliable ON/OFF and modulating operation
2. Is the QT Series ON/OFF, Regulating, Intelligent, IP68, EX suitable for hazardous or explosive areas?
• Ex d IIB T4 construction supports use in chemical, oil & gas, and solvent-handling environments
• The explosion-proof actuator maintains safe operation in Zone 1/Zone 2 locations
• Reinforced housing protects internal components from ignition risk
3. Does the QT Series ON/OFF, Regulating, Intelligent, IP68, EX work with PLC, DCS, and SCADA automation systems?
• Supports 4–20 mA, 0–10 V, dry contact, and RS485/Modbus
• Intelligent module provides real-time diagnostics and valve feedback
• Compatible with global valve control and automation platforms
4. Can the QT Series ON/OFF, Regulating, Intelligent, IP68, EX operate in submerged, outdoor, or corrosive environments?
• IP68 enclosure ensures long-term underwater and outdoor operation
• Aluminum alloy housing resists corrosion in marine and chemical applications
• Designed for harsh conditions in water treatment and coastal facilities







