Round Fire Damper

Round Fire Damper is a special fire damper designed for circular ventilation pipelines. It adopts a cylindrical valve body structure, can be directly connected to various circular air ducts and ventilation shafts, and is widely used in pipe shafts, ceiling pipelines and small ventilation systems with compact space. It remains normally open to meet the normal ventilation needs of the system in daily operation. When the flue gas temperature in the pipeline reaches 70℃, the built-in fusible temperature-sensitive element of Round Fire Damper automatically triggers and fuses, and the built-in spring-driven mechanism drives the damper blades to close rapidly, forming an effective fire compartment in the circular pipeline and preventing the spread of fire and high-temperature flue gas along the pipeline.

Our Round Fire Damper adopts a cylindrical valve body formed by integral rolling, made of high-quality galvanized steel sheet, with compact structure, smooth air flow transition, and wind resistance in fully open state far lower than rectangular valves of the same specification. The damper blades adopt a circular closed structure, with annular seals on the edges, which fit tightly after closing, with extremely low leakage and excellent sealing performance. The product is standard-equipped with a manual operating mechanism, supports on-site manual opening and closing, and can be equipped with an electric actuator and signal feedback device according to project requirements. With 23 years of air valve manufacturing experience, our Round Fire Damper has high dimensional accuracy, good adaptation to circular air ducts, and convenient installation. It can effectively improve engineering installation efficiency, and is especially suitable for pipeline scenarios with limited space.

• Building pipe shafts: Ventilation shafts, circular pipelines in ceilings, fire compartmentation in pipe shafts
• Small systems: Fire protection for split ventilation systems in small commercial spaces and residences
• Industrial scenarios: Fire partition of equipment supporting circular air ducts and local ventilation systems

We provide customers with full-cycle after-sales service guarantee. In view of the characteristics of small-batch and multi-specification procurement of Round Fire Damper, we have established a fast-response after-sales mechanism. The products come with a one-year free warranty upon delivery. For quality problems within the warranty period, customers can enjoy the three-guarantee service of repair, replacement and refund. After the warranty period, maintenance and replacement services are provided with only component cost fees. Common specification accessories are kept in stock for quick reissue. We regularly follow up on customers' usage and respond to various after-sales problems in a timely manner to ensure long-term stable operation of products.

We support non-standard size customization of Round Fire Damper. The valve body specifications can be customized according to customers' air duct diameter and wall thickness requirements to adapt to various special-sized circular pipelines. For special working condition requirements, we can provide customized versions with stainless steel materials and high-temperature seals, and can also customize functions such as electric control and remote linkage. The minimum order quantity is 1 piece, the development cycle of customized samples is about one week, and free samples are available for large quantities, which can quickly respond to the customization needs of various special projects.

In view of the transportation characteristics of circular products, we adopt an exclusive protective packaging scheme. Each product is individually bagged and reinforced, with buffer material filled inside to prevent extrusion deformation and collision damage during transportation. Layered spacers are used for multi-piece stacked transportation to avoid friction damage to the valve body. We support multiple trade terms such as EXW, FOB, DDP, and can customize export packaging according to customer needs. The standard production cycle of standard products is one week, small-batch orders can be scheduled for quick delivery, and progress information is synchronized during the production process.

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