Current book for Ultra Silent duct fans
Current catalog for
Ultra Silent duct fans
ImageNameAirflow(m³/h)Voltage(V)Frequency(Hz)AC/DC/ECDimensions(mm)Sound Pressure(dB(A))Sound Power(Bel)Speed
LONGWELL LWDE-150 (6″)S-MWN-04 Ultra Silent duct fans LONGWELL LWDE-150 (6″)S-MWN-04 Ultra Silent duct fans720CMH220-24050/60EC150/353400
LONGWELL LWDE-200 (8″)U-MWN-03 Ultra Silent duct fans LONGWELL LWDE-200 (8″)U-MWN-03 Ultra Silent duct fans700CFM110-12060EC200/1403300
LONGWELL LWDE-250 (10″)U-MWN-03 Ultra Silent duct fans LONGWELL LWDE-250 (10″)U-MWN-03 Ultra Silent duct fans1219CFM110-12060EC250/1953000
LONGWELL LWDE-125 (5″)U-MWN-03 Ultra Silent duct fans LONGWELL LWDE-125 (5″)U-MWN-03 Ultra Silent duct fans410CFM110-12060EC125/353350
LONGWELL LWDE-100 (4″)S-MWN-04 Ultra Silent duct fans LONGWELL LWDE-100 (4″)S-MWN-04 Ultra Silent duct fans697CMH220-24050/60EC100/353350
LONGWELL LWDE-100 (4″)U-MWN-03 Ultra Silent Duct Fans LONGWELL LWDE-100 (4″)U-MWN-03 Ultra Silent Duct Fans410CFM110-12060100353350
LONGWELL LWDA-150S-PWN-13 Ultra Silent duct fans LONGWELL LWDA-150S-PWN-13 Ultra Silent duct fans55623050AC150309802550
LONGWELL LWDA-200S-PWN-14 Ultra Silent duct fans LONGWELL LWDA-200S-PWN-14 Ultra Silent duct fans123623050AC2003911302500
LONGWELL LWDA-125S-PWN-11 Ultra Silent duct fans LONGWELL LWDA-125S-PWN-11 Ultra Silent duct fans31923050AC125185402550
LONGWELL LWDA-100S-PWN-15 Ultra Silent duct fans LONGWELL LWDA-100S-PWN-15 Ultra Silent duct fans31923050AC100185402550

Ultra Silent duct fans

– Material: Plastic / Metal – Customizable features include time delay, temperature sensors, humidity sensors, and other tailored functionalities. – Integrated backdraft damper to prevent the return of air and entry of insects. – Ensures stable performance with slow start-up, unaffected by voltage fluctuations. – Double diameter connection provides a sealed, leak-proof, and shockproof design. – In automatic mode, the controller adjusts the fan to high speed when air quality (temperature, humidity, VOC value) exceeds the set threshold, and the fan stops once the air quality drops below the set value. By drawing inspiration from industry leaders while maintaining a distinct brand voice, Longwell can effectively communicate the superior design and performance of its products to customers.

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