Is it necessary to install fire damper for smoke duct?

أفضل جواب: SUPPLY AIR DUCT DAMPER AND RETURN AIR DUCT DAMER ARE CONNECTED IN REVERSE MANNER WHEN ONE WILL CLOSE THEN ... الإطلاع على المزيد

أفضل جواب: fire damper  is a damper used for avoid fire transfer from fire zone to another location of this damper d ... الإطلاع على المزيد

أفضل جواب: motorize damper is normally open during a normal operation, when fire alarm is activated , it will automa ... الإطلاع على المزيد

أفضل جواب: - smoke exhaust & fresh air make up inlets & outlets. - Rooms with fire protection FM200 & CO ... الإطلاع على المزيد