lindab | fire dampers Fire damper WHS25 Technical data Fire resistance classification according to EN 13501-3 Rigid wall Flexible wall EI 120 S (500 Pa) EI 120 S – Installation within vertical rigid wall Wall min. thickness 100 mm Wall min. thickness 100 mm Wall min. density 550 kg/m³ ve (i < > o) Dry sealing method Ø min 100 max 315 EI 120 S – Installation within vertical light wall (plasterboard) Wall min. thickness 100 mm With metal frame around fire damper Without plastboard infill panel ve (i < > o) Wall rock wool density up to 80 kg/m³ (optional) Dry sealing method Ø min 100 max 315 EI 120 S – Installation within vertical light wall (plasterboard) Wall min. thickness 100 mm Without metal frame around fire damper With plastboard infill panel ve (i < > o) Wall rock wool density up to 80 kg/m³ (optional) Dry sealing method Ø min 100 max 315 EI 90 S – Installation within vertical light wall (gypsum block wall) Wall min. thickness 70 mm Wall min. density 995 kg/m³ ve (i < > o) Dry sealing - method EI 120 S – Installation within vertical light wall (gypsum block wall) Wall min. thickness 100 mm Wall min. density 995 kg/m³ ve (i < > o) Dry sealing method Ø min 100 max 315 EI 90 S – Installation within floor Floor min. thickness 100 mm Floor min. density 650 kg/m³ ho (i < > o) Dry sealing - method EI 120 S – Installation within floor Floor min. thickness 150 mm Floor min. density 650 kg/m³ ho (i < > o) Dry sealing method Ø min 100 max 315 Floor EI 90 S (500 Pa) Ø min 100 max 315 Ø min 100 max 315 Ø min 100 max 315 Ø min 100 max 315 Ø min 100 max 315 Ø min 100 max 315 Ø min 100 max 315 EI 60 S (500 Pa) Ø min 100 max 315 Ø min 100 max 315 Ø min 100 max 315 Ø min 100 max 315 Ø min 100 max 315 Ø min 100 max 315 Ø min 100 max 315 Ø min. - max. nominal diameter ve vertical installation ho horizontal installation (i < > o) origin of fire is irrelevant Pa negative pressure E integrity I thermal insulation S smoke seal We reserve the right to make changes without prior notice 2 2018-03-09
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