High-Efficiency Low-Noise Mixed Flow In-Line Fan Series

The high-efficiency low-noise axial-flow fan is a novel type of fan situated between axial-flow and centrifugal fans. Featuring a larger airflow capacity than centrifugal fans and a higher static pressure than axial-flow fans under the same model designation, it offers high efficiency, energy savings, low noise, and convenient installation. The fan primarily consists of an impeller, casing, inlet flow collector, guide vanes, and an electric motor. The impeller utilizes twisted blades with meridional acceleration characteristics welded onto the hub, which undergo dynamic balancing inspection and overspeed testing to ensure superior aerodynamic performance. The casing is integrated with a streamlined flow collector featuring sound-attenuation functions and houses internal guide vanes, providing optimal airflow distribution and stable pressure. The fully enclosed high-temperature motor is built-in and equipped with a dedicated motor cooling system to reduce the surrounding operating temperature of the motor. This type of fan can serve a dual purpose for high-temperature smoke exhaust and general ventilation, and can operate normally for 60 minutes in a 300℃ high-temperature environment. It is ideal for high-temperature smoke extraction in tunnels, underground parking lots, underground shopping malls, underground warehouses, and high-rise buildings, making it a preferred fire protection matching product favored by design institutes and users. In the event of a fire, it can rapidly expel smoke to ensure safe personnel evacuation, serving as essential equipment for fire safety. The performance parameters listed in the fan's performance tables represent the peak efficiency range, categorized into five performance points by airflow volume; fan selection shall strictly be based on these performance tables. Factory-qualified fans exhibit a total pressure error not exceeding 5% under rated flow conditions. The performance selection tables reflect performance under standard atmospheric conditions; both technical documentation and ordering requirements shall be governed strictly by these standard conditions.