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Fan Muffler Resistive muffler

Subway fan silencers are mainly resistive silencers. When the noise is complex, impedance composite types are used, mostly with a sheet structure. Non-combustible sound-absorbing materials are selected to adapt to large air volume working conditions, balancing noise reduction effect and air flow resistance, and meeting the fire protection and noise reduction requirements of subways.
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ModelImpedance composite mufflerFan silencergas venting mufflers
One cubic meter of weight (kg)150~250150~250150~250
ShapeCircle/SquareCircle/SquareCircle
‌Acoustic Splitting VaneYESYESYES
Thickness(mm)100100100~150
noise reduction(dB)20~2520~2520~30
CustomizedYESYESYES

The mufflers we produce, whether they are resistive mufflers, reactive mufflers, composite mufflers or gas venting mufflers. All materials are uniformly made of high-quality steel plates, high-quality perforated plates (with a perforation rate of ≥ 23%), and high-quality sound-absorbing cotton. The noise reduction of all mufflers ranges from 20 to 45 decibels, and there will be certain differences in noise reduction among different muffler specifications. Therefore, we recommend that the purchaser provide the corresponding on-site data so that we can carry out the design, thereby enabling the muffler to achieve the best noise reduction effect.


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