RPB RG Series Intumescent Louver

RESSA grille consists of the aluminum alloy frame and graphite based intumescent material core in the middle.

When meet fire the pull spring will recover its elastic function because of the the easy melting plate of grille will start smelt and break.

The fire grille will be closed automatically when fire is encountered and the inside intumescent material will be rapidly expand to seal the gaps to prevent the air circulation of two spaces.

It will effectively prevent the fire, smoke, toxic gas and heat go through to make sure the human body have enough time to escape from fire.