Complete set with a mesh is used in the absence of special requirements for the external design of the installed ventilation equipment to protect against unauthorized access to the damper and its actuator and prevent external mechanical impact and ingress of foreign objects.

Vandal-proof mesh can be used as part of any fi re or smoke damper of both round and rectangular cross-section, including sectional-type damper.

Mesh is made of sheet steel by cutting holes (perforated steel sheet), the cell size is 30 mm. The mesh is made of low-alloy galvanized steel, on request it can be made of carbon steel with a paint coating or stainless steel