reactive silencer for roots blower

Reactive silencers are used to attenuate low frequency octave band noise – up to attenuation of 30 dB (A)- produced by the exhaust of rotating machines such as diesel / gas engines, compressors, pumps …

Reactive silencers reduce noise pollution from exhausts. They are found on a wide variety of industrial sites.

Reactive silencers reduce noise pollution from exhausts. They are found on a wide variety of industrial sites.

The shape of reactive silencers is usually cylindrical. These silencers include several gas expansion chambers communicating via impedance tubes. The length of the tubes depends on the frequency of the rotating machine and the harmonic frequencies. 

The length of the tubes and the number of chambers are calculated by proprietary software providing satisfactory performance as proven with our reference list. 

An additional stage with acoustic absorbent can be added to obtain the proper noise attenuation. 

An additional stage with acoustic absorbent can be added to obtain the proper noise attenuation.

 With its proven technology, SAI is able to design equipment with extreme process conditions. As example: steam/gas flow rate up to 500 tons per hour, temperature up to 500°C with a pressure at entry reaching 50 bars.