SVI BREMCO is your source for innovative custom engineered industrial noise control solutions

It is not uncommon for the exhaust from a large ID fan to produce a tonal noise in the far field that can be disruptive to your community.  While it may seem that a frequency-shifting silencer makes sense, at SVI BREMCO, we offer a more effective and innovative solution by custom-designing a silencer tuned to target the tonal noise.  Fans can produce a tonal noise that correlates to the blade pass frequency and the first harmonic frequency of the fan.  A tuned silencer is a silencer that we install in the exhaust gas path of your fan that will target the problem frequencies and reduce the tonal spike.  The dissipative part of the silencer also provides over broadband attenuation reducing the overall fan exhaust noise.  If additional broadband attenuation is required, we can use a tuned silencer in conjunction with an absorptive (splitter or parallel baffle) silencer.

Contact us for help with your first frequency-shifting harmonic silencer.

Find Your Solution

Download our Stack Inspection Checklist from SVI BREMCO'S Experts

We’ve developed a stack inspection checklist to help you identify problems before they lead to plant downtime. There are several good reasons to inspect your stack:

  • Do you want to prevent downtime?
  • Have you noticed significant degradation of any structural component?
  • Has your stack experienced an unusual event such as an explosion, earthquake, fire or overheating?

Knowing what you should inspect annually and every three years saves you time, money, and stress.

Download our Stack Inspection Checklist

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