Duct Fire Damper

Duct Fire Damper is a fire damper specially designed for built-in installation in air ducts. It can be directly embedded inside ventilation ducts without major modification to the original pipeline structure, and is an ideal choice for ventilation system upgrading of existing buildings and fire protection upgrading of narrow air ducts. It remains normally open in daily operation, and the valve body transitions smoothly with the inner wall of the air duct without generating additional eddy currents, which does not affect the normal ventilation efficiency of the air duct. When the flue gas temperature in the pipeline reaches 70℃, the temperature-sensitive triggering mechanism of Duct Fire Damper acts automatically, driving the damper blades to close rapidly, forming a tight fire compartment inside the air duct and blocking the transmission path of fire and smoke.

Our Duct Fire Damper adopts an ultra-thin valve body structure, which can adapt to ventilation ducts of different wall thicknesses and cross-sections. After installation, it has a high fit with the inner wall of the air duct and has minimal impact on the ventilation performance of the original air duct. The valve body is made of high-quality galvanized steel sheet, which is anti-corrosion and durable, with flexible rotating damper blades and tight closing. The product design fully considers the on-site installation requirements of renovation projects, with fine-tunable installation dimensions and strong adaptability. With 23 years of manufacturing experience in ventilation and fire protection equipment, our Duct Fire Damper has been specially optimized in structural compactness, wind resistance control and operation reliability. It can not only strictly meet fire protection specification requirements, but also maximize the ventilation performance of the original air duct.

• Renovation projects: Fire protection upgrading of existing building ventilation systems, old air duct fire protection renovation projects
• Narrow scenarios: Narrow air ducts in small pipe shafts, ceiling interlayers, and equipment rooms
• Industrial scenarios: Fire compartmentation of production workshop air ducts and equipment supporting air ducts

We have established special quality inspection standards for the application scenarios of Duct Fire Damper. In addition to conventional operation performance and sealing performance tests, we additionally add air duct adaptability test and wind resistance test to ensure tight fit with the air duct after installation and ventilation resistance meeting design requirements. Multiple quality control nodes are set from raw material incoming to finished product delivery, and 100% full inspection is implemented before packaging. Each product comes with factory inspection records. We support on-site inspection by third-party institutions, and the products come with a one-year warranty upon delivery to ensure each delivered product meets performance standards.

We provide exclusive technical support for renovation project customers. Pre-sales on-site survey assistance and model selection suggestions are available. In-sales installation guidance can be provided. After-sales service includes one-year free warranty and lifetime technical support. In response to the urgent needs of air duct renovation projects, we can open a fast response channel to give priority to after-sales problems. For product quality problems within the warranty period, customers can enjoy the three-guarantee service. After the warranty period, maintenance and replacement services are provided with only component cost fees. We regularly follow up on project operation to ensure long-term reliable operation of products.

We support non-standard customization of Duct Fire Damper. The valve body structure and size can be adjusted according to customers' air duct size, wall thickness and installation space to adapt to various special-sized air ducts. For different renovation scenarios, different installation fixing methods and control modes can be customized to meet the personalized needs of projects. The minimum order quantity is 1 piece, and the development cycle of customized samples is about one week, which can quickly respond to the urgent procurement needs of various renovation projects.

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