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Reactive-absorptive vent silencers - Model 413 industrial grade, all welded construction - dB Noise Reduction



  • High pressure vents
  • Safety relief valves
  • System blowdowns
  • Pressure reducing valves
  • Process control valves
  • Purging applications

Design features

  • Reactive-absorptive design for attenuation of low frequency, as well as mid and upper band frequency noise
  • Absorptive acoustic media protected by high temperature cloth and 304 ss mesh liners
  • Custom designed and manufactured to meet the attenuation needs of each application
  • Single and multiple end intake, as well as side intake connections available


  • Mounting brackets, support legs, stands, saddles for vertical or horizontal installation
  • 150 lb ANSI inlet flanges standard (300 lb, 600 lb, and higher ratings available)
  • Tail pipes, rain cowls and discharge elbows
  • Flow limiting orifice plates

For other customized silencer designs, please contact us and we will be happy to assist you.


Download our Vent Silencer Data Form.
You can fill it out and send it back
to us for a quick quote.

Request a quote | dB Noise Reduction


Reactive-absorptive vent silencer features

Reactive-absorptive vent silencer features   Absorptive muffler bullet details

Reactive-absorptive vent silencer features - image - dB Noise Reduction

Product details


Up to 600,000 scfm (standard)

Upstream Pressures:

Up to 2,500 psig


Up to 1,200° F for standard materials


Connection ID's from 4" to 60"
Casing OD's from 12" to 144"

Unit weight:

Up to 25,000 lbs


Carbon and stainless steels


12 ga to 3/8" casings with 12 ga internals
designed for thermal expansion

Paint finishes:

High heat aluminum or black, as well as a
variety of low temperature paints

For other customized muffler designs, please contact us and we will be happy to assist you.


Servicing clients in the US, Canada, Mexico, and many international locations worldwide.