Square Silencers

We manufacture five square silencer models which are customizable using the unique silencing calculator developed by HNA.

The reduction level varies between models according to their size and free space allowed for air passage.

  • EL model has an air passage area of 60% and is the model that produces the smallest pressure drop
  • Model L allows air passage area of 50%
  • Model M allows a transition area of 42%
  • Model H allows air passage area of 33%
  • Model SH allows air passage area of 25% and is the model which produces a maximum noise reduction at the expense of the air flow passage. 

All our silencers are manufactured in standard lengths (75 cm, 100 cm, 125 cm, 150 cm, 200 cm, 240 cm, 270 cm)

All silencers can be custom built to any specific dimensions.

Products

HNA L Model silencer, has 50% of free air space This model is most suitable for places where air flow rate is high.
The HNA EL model silencer has 60% free air space which produces a low pressure drop. This model is most suitable for places where air flow rate is very high.
HNA SH model silencer has 25% free air space
HNA Company H model silencer has 33% free-flow air passage.
HNA M model silencer allows 42% of free air passage