When closed the protection device fulfils all the requirements for a highly sensitive room regarding: Fire resistance value, flue-gas tightness, water retention, level of protection against burglary, pressure resistance, etc.!

 

The balanced, heavyweight protection device only requires a very low input of power (12 or 18 nm) in order to open and close, this results in a very high functional capacity – even in the event of an MCA (maximum credible accident).

 

In the event of fire, the protection device for ventilation ducts closes automatically via a spring return actuator, without electricity!

 

Download the product description

 

Download the application examples for ventilation ducts