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70°C fire damper
70 degree fire damper is used on air conditioning supply and ventilation system pipelines; Normally open, close in case of fire, interlock the fan, an
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70 degree fire damper
70 degree fire dampers are used on air conditioning supply and ventilation system ducts; Normally open, close in case of fire, interlock the fan, and turn off the fan;
70 is normally open for fire protection.
Close in case of fire.
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