Material selection is an important factor when evaluating #manufacturersoffiredampers for HVAC applications. Airmaster Emirates’ AFD 3 Fire Damper uses galvanized steel throughout key structural components. The frame is constructed from 1.6 mm high-quality galvanized steel sheet, while the interlocking blades are roll formed from 1 mm galvanized steel. The blade ramp is also made from 1.6 mm galvanized steel. This construction is combined with stainless steel constant-force springs and UL-listed fusible links.
https://airmasteremirates.com/product/fire-damper/
IOGOOS Ltd
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