6 Inch High-Speed Exhaust Fan In-Line Duct Kitchen Extractor Metal Toilet Fan Industrial Fan ,High-Efficiency

APPLICATIONS:Combined supply and extract ventilation systems for various premises where high air flow at relatively low system resistance is required. MOTOR:The motor is equipped with ball bearings. SPEED CONTROL:Both smooth and step speed control is performed with the thyristor or autotransformer controller. Several fans can be connected to one controller in case the total power and operating current do not exceed the rated controller values. Mounting:fan is installed into the duct by means of clamps or directly inside the wall.