Industrial Commercial Roof Ventilator Heavy Duty Extractor Fan Cowl

  
SD-series roof fans are designed for ventilating utility buildings, as well as warehouses with a low level of air pollution. Fans designed for vertical operation are adapted for installation on roofs with a maximum pitch of 15°. They have a much-higher compression than traditional fans, so they can work with central exhaust-ventilation systems. Thanks to the use of 3-speed motors, it is possible to adjust the fan's parameters to the user's needs, depending on the connection method.