Features: <br>Actuator + air valve: The electric air valve is composed of two parts: the actuator and the air valve. <br>The actuator has the characteristics of small size, high and long service life. <br>It adopts bidirectional control and can be according to different requirements.<br>High- valve leaf: The air valve leaf adopts high- aluminum plate stamping molding, equipped with silicone sealing ring, good airtightness, easy wear and corrosion resistance, and stable and product .<br>Mirror: round air valve adopts high motor, beautiful and operation, low failure rate, the material of the valve body is made of mirror, corrosion resistance, high- appearance.<br>Can be equipped with a temperature controller: can be used with a series of thermostats, automatic switch, so the controlled environment is effectively controlled, so energy-saving comfort and no noise.<br> Air Duct Valve / Electric Air Duct Damper / Motorized Damper 125MM 220V<br>Both the valve opening and the valve closing need to be energized, and the actuator will automatically shut off after completing an action. <br>An action time is about 10 seconds.<br>This damper is suitable for controlling the air volume from full to shut off<br>The damper is constructed with stainless steel and come with aluminum valve plate<br>It can work with thermostat, open and automatically.<br>colour: Silver<br>Material: stainless steel<br>size: Height: 19mm<br>Outside diameter: 125mm<br>Package Contents: <br>1* electric air valve<br>Only the above package content, other are not included.<br>Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.