F400 – fire resistance rating up to 400°C for 120 minutes
F300 – fire resistance rating up to 300°C for 60 minutes
F200 – fire resistance rating up to 200°C for 120 minutes
Operating parameters:
Highly effective smoke extraction and air supply within a very short time (SEF(V) standard reversibility at a level of approx. 70%)
The possibility of working in domestic applications also (PTC sensors are available as an option)
In the case of fans with a flow vane at the outlet (SEF(V)GV), these devices have considerably higher efficiency (up to 85%) and higher flow parameters
A short reaction time to a fire alarm signal
Easy system adjustment due to the possibility of using an inverter
Operation at a frequency of 50 Hz or 60 Hz
Operating principle
SEF(V)GV fans, due to the use of a vane, rectify the stream, which makes the air stream uniform and prevents possible additional turbulence directly downstream the fan. Such a solution significantly increases the efficiency and flow parameters. Thus eliminates additional, unpredictable pressure loss in the system directly downstream the fan.