Combined Smoke Damper

When a fire occurs, smoke exhaust systems must work. Our 280℃ Smoke Exhaust Fire Dampers stay open during normal operation. This allows the smoke exhaust system to function. When smoke temperatures reach 280℃, a fusible alloy melts. The damper closes quickly by spring action. This stops flames and high-temperature smoke from spreading through the exhaust ducts. It protects fire equipment and the building structure. The damper provides signal feedback. It can link with fans and fire control systems to stop fans and trigger interlock controls. Yancheng Lima Air Conditioning Engineering Co., Ltd. has been providing fire safety products since 1996.

Building codes require these dampers in specific places. Our 280℃ Smoke Exhaust Fire Dampers must be installed at the main inlet of smoke exhaust fans. They are also required where exhaust ducts pass through fire compartments. Other locations include the connection between vertical exhaust shafts and horizontal branch ducts. Any exhaust duct node with fire resistance requirements needs these dampers. Proper installation helps contain fire and smoke, protecting lives and property.

When temperatures rise, the damper must still work. Our 280℃ Smoke Exhaust Fire Dampers are built with strong materials. The body and blades are made from stainless steel, galvanized steel, or aluminized zinc steel. These materials resist high temperatures without deforming. They provide reliable closure when needed. Our factory in Yancheng uses advanced equipment for precision manufacturing. We test each damper to ensure it meets safety standards. You can trust our dampers to protect your building.

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