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FGS

 

FGS

The anti-fire ventilation grid FGS is intended to divide fire sections and to prevent toxic gases, fume and flames from spreading. The anti-fire ventilation grid FGS is a component of the passive fire protection. The grid FGS is tested in compliance with EN 1364-1, ETAG 026 part 4 and PREN 1364-5:2014 and classified in compliance with EN 13501-2:2017.

The anti-fire ventilation grids FGS are intended for a fixed placing into the fire barrier construction with no attachment to onward ventilation duct. The anti-fire ventilation grids FGS are available with the manual control or with the servo drive.

The manually controlled anti-fire grids FGS

The release mechanism of the anti-fire grid FGS is activated if the ambient temperature reaches 74°C. In case of fire the grid automatically closes up within 10 sec after melting of the thermal cutoff. Once the grid is closed, the blades stay blocked in the closed position and can be opened only manually. Anti-fire grids equipped with microswitches can be also made-to-order.

The anti-fire grids FGS with the servo drive

The anti-fire grids FGS with the servo drive are standardly equipped with a thermo-electric cutoff activating the closure of the blades as the ambient temperature reaches 72°C. The temperature interrupts the servo drive power circuit and a spring closes the blades within 20 sec. All the grids controlled by the servo drive are equipped with microswitches signalling the blade position. Made-to-order, grids with a power supply and communication unit can be also available (activation mechanism DV9-T-ST). The ventilation grid FGS is equipped with a spring servo drive closing up the grid after a command from the BMS (EPS) system or after melting of the thermo-electric cutoff.

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