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@juerajuera: This real fire test shows how a 70℃ fire damper works in actual high-temperature scenarios. Under direct flame heating, the standard fusible link melts instantly. The fire damper fully closes in just seconds without electricity or manual operation. Fast and reliable temperature-triggered shutdown effectively blocks fire and smoke spread through ventilation ducts, protecting building safety in critical moments. #FireDamper #70CFireDamper

Ventilation Air Duct
Ventilation Air Duct
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Region: US
Monday 21 September 2026 10:04:42 GMT
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hard.ly.home
Rick,Randel :
never had one that wasn't a bitch to put in lol
2026-09-24 13:05:53
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