The direct-driven centrifugal fans are intended for air movement and designed for continuous operation. The permissible temperature of the air to be moved ranges from -30°C to +70°C. They are designed to operate under high available pressure and have a very low noise level. The complete product range of 12 different types of direct-driven centrifugal fans, with air volumes ranging from 250m3/h to 7,000m3/h, is available from stock.