lindab | fire dampers Fire damper Technical data Mechanism type: WK25B - Manual basic WK25M - Manual with magnet WK25 VSB/DSB - Belimo motorized version WK25 VSS/DSS - Siemens motorized version Mechanism type c d e mm mm mm WK25B 84 88 28 WK25M 104 151 51 WK25VSB/DSB 74 92 164 WK25VSS/DSS 78 73 107 WK25 2 We reserve the right to make changes without prior notice
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