The actuator features a compact design, high torque output, and long service life. It supports bidirectional control and can operate according to varying requirements. The round air valve is equipped with a high-quality motor for smooth, reliable performance and low failure rate. The valve body is constructed with a mirrored finish, offering resistance to corrosion and an elegant appearance. Compatible with a temperature controller, this damper can be used with various thermostats for automatic switching, enabling effective environmental control with energy efficiency, quiet operation, and enhanced comfort. Product: HVAC Air Duct Valve / Electric Air Duct Damper / Motorized Damper Diameter: 125mm Rated Torque: 1Nm Power Consumption: 4VA Valve Angle: 0°, 90° Voltage: 220VAC Service Life: 50,000 cycles Operation: Both opening and closing require power; the actuator automatically cuts off power upon completion of each action. Action Time: Approximately 10 seconds This damper is designed to regulate airflow from full flow to complete shut-off. It features a polished stainless steel construction with an aluminum valve plate. It is compatible with thermostats for automatic open/close functionality. Color: Silver Material: Stainless Steel Package Includes: 1 x Electric Damper Note: Accessories shown in images are not included. Slight color variations due to lighting conditions or display settings may occur. Measurement tolerance: ±1–3 cm.