Overview of impedance muffler

Impedance muffler is generally installed at the air inlet and outlet of the fan to reduce the noise during the operation of the fan. The muffler is a resistive muffler, which is divided into round and square. The inner wall is made of galvanized perforated plate, the interlayer is filled with ultra-fine glass wool as sound-absorbing material, the cladding is glass silk cloth, and the galvanized perforated plate is made into resistive sound-absorbing sheet. The product has less air resistance loss and good sound-absorbing effect. When the section of the square muffler is ≥ 630x630 mm, the resistive sound-absorbing sheet shall be added appropriately.