The control steering devices are used if, for various reasons required by the starting or operating conditions, it is necessary to adjust the industrial fan to a different operating mode than the basic one. They regulate the fan flow, so that the operating point moves on the characteristic curve, establishing other parameters of flow and pressure.
The steering devices are axial, they are also designed for the economic adjustment of the fan and they are mounted on the suction mouth of the industrial fan. They can be delivered with manual actuation or with servomotor, offering safety in operation, in the conditions of a mechanical work of reduced adjustment.