657.78 GBPPCE
WH25Motorised fire damper
Circular fire damper for air duct system that penetrate fire resistance walls or floors. With 25 mm thick closing blade made from refractory material. Casing leakage performance class C according to Standard EN1751:2014 section C.3.
| Characteristic | Value |
|---|---|
| Size | 100 - 315 |
| Variety | GALV |
| Type | DSB, GEN, VSB |
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