Fire damper WK25. Dimensions

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1 Dimensions 310 d b e c a S2 S1 Description Rectangular fire damper for air duct system that penetrate fire resistance walls or floors. With 25 thick closing blade made from refractory material. Casing leakage performance class C according to Standard EN1751:2014 section C.3. The damper prevents fire and smoke from spreading through the air duct system. Tested and classified in accordance with EN and EN with 500 Pa negative pressure and CE marked in accordance with EN Product code Type WK Rectangular fire damper Series 25 Blade thickness 25 Manual coand B Manual coand Coand C Compact manual coand type Position indication microswitches Magnet M S0 S2 M0 MR MI Manual coand with magnet Without position microswitches With two position microswitches (included for MR/MI versions) Without magnet (only for coand type B and C ) With power supply interruption magnet through eletric board 24 V DC or 48 V DC With power supply input magnet through eletric board 24 V DC or 48 V DC Motorized VSS Siemens motor GRA 126 (24V) DSS Siemens motor GRA 326 (230V) Motor type VSB Belimo motor BFL24T (24V) DSB Belimo motor BFL230T (230V) TSB Belimo motor BFL24TST (24V) Base (a) XYZ Nominal dimension () Height (b) XYZ Nominal dimension () a b nom nom All combinations of base (a) and height (b) dimensions are available. It is possible to pair two dampers for bigger duct dimension. S1 S2 b (blade exposition) nom , , , , , , ,5 171, ,5 196, ,5 221,5 Ordering example Mechanism type Side a Side b Control mechanism M S2MR We reserve the right to make changes without prior notice 1

2 Mechanism type: B Manual basic M Manual with magnet VSB/DSB Belimo motorized version VSS/DSS Siemens motorized version Mechanism type c d e B M VSB/DSB VSS/DSS We reserve the right to make changes without prior notice

3 Fire resistance classification according to EN Rigid wall Flexible wall Floor Installation within vertical rigid wall Installation within vertical rigid wall Plasterboard and rock wool 100 kg/m³ sealing Dry sealing EI 180 S Installation within vertical light wall (plasterboard) Wall rock wool min. density 100 kg/m³ Dry sealing Plasterboard and rock wool 100 kg/m³ sealing Installation within vertical light wall (gypsum block wall) Wall min. thickness 70 Wall min. density 995 kg/m³ Plasterboard sealing Installation within vertical light wall (gypsum block wall) Wall min. density 995 kg/m³ Plasterboard sealing Installation within floor Floor min. thickness 100 Mortar sealing Installation within floor Mortar sealing EI 180 S Installation within floor Floor min. density 2200 kg/m³ Mortar sealing EI 60 S We reserve the right to make changes without prior notice 3

4 Fire Batt (Weichschott) sealings. Rigid wall Flexible wall Floor Installation within rigid vertical wall with Fire Batt (Weichschott) sealing Installation within vertical light wall (plasterboard) with Fire Batt (Weichschott) sealing Wall rock wool min. density 100 kg/m³ Installation within floor and Fire Batt (Weichschott) sealing Wall min. density 995 kg/m³ Installation within floor and Fire Batt (Weichschott) sealing EI 60 S 4 We reserve the right to make changes without prior notice

5 Installations remote from the construction support. Rigid wall Flexible wall Installation remote from the vertical rigid wall Installation remote from the vertical rigid wall with Fire Batt (Weichschott) sealing Installation remote from the vertical light wall (plasterboard) Wall rock wool min. density 100 kg/m³ Plasterboard and rock wool 100 kg/m³ or mortar or plaster putty sealing Installation remote from the vertical light wall (plasterboard) with Fire Batt (Weichschott) sealing Wall minimum thickness 100 Wall rock wool minimum density 100 kg/m³ Installation remote from the vertical light wall (gypsum blocks wall) Wall minimum thickness 100 Wall minimum density 995 kg/m³ Installation remote from the vertical light wall (gypsum blocks wall) with Fire Batt (Weichschott) sealing Wall minimum thickness 100 Wall minimum density 995 kg/m³ Installation remote from the floor he (i o) Installation remote from the floor Floor min. thickness 100 he (i o) Installation within vertical light wall (Shaft wall). Flexible wall EI 60 S Installation within vertical light wall (Shaft wall) Wall minimum thickness 90 Plasterboard and mortar or plaster putty sealing EI 60 S We reserve the right to make changes without prior notice 5

6 nominal dimensions of damper ve vertical installation ho horizontal installation (i o) origin of fire is irrelevant Pa negative pressure E integrity I thermal insulation S smoke seal For more detailed information visit: The fire resistance classifications refer to the conditions obtained by rigorously applying the instructions indicated in the Technical Manual, with reference both to the construction of the wall/ceiling and the installation of the damper. 6 We reserve the right to make changes without prior notice