The actuator features a compact size, high torque, and long service life. It supports bidirectional control for flexible operation. The round air valve uses a high-quality motor for smooth, reliable operation and low failure rate. The valve body is made of polished stainless steel for a premium appearance and corrosion resistance. Compatible with thermostats for automatic on/off control, enabling effective environmental regulation, energy efficiency, quiet operation, and comfort. HVAC Air Duct Valve / Electric Air Duct Damper / Motorized Damper – 125 mm, 220 V AC Outside Diameter: 125 mm Rated Torque: 1 Nm Power Consumption: 4 VA Valve Angle: 0° / 90° Voltage: 220 V AC Cycle Life: 50,000 operations Both opening and closing require power; the actuator automatically de-energizes after completing each action. Action Time: Approximately 10 seconds Designed for precise airflow control from full flow to complete shutoff. Construction: Polished stainless steel housing with aluminum valve plate. Compatible with standard thermostats for automatic operation. Color: Silver Material: Stainless steel Package Includes: 1 × Electric Damper Note: Slight color variation may occur due to lighting and screen settings. Measurement tolerance: ±1–3 cm.