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Absorptive mufflers - Model 313 and 323 industrial grade, all welded construction - dB Noise Reduction



  • Turbine exhaust mufflers
  • Low pressure turbo engine exhaust mufflers
  • Engine and turbine intake mufflers
  • Centrifugal blower and compressor intake and exhaust silencers
  • Any application requiring low pressure and/or high mid-upper band attenuation

Model 313 mufflers

  • Straight through circular design with absorptive acoustic liner, but without a center bullet
  • No obstructions in the airstream
  • Good for smaller diameter connections and when low pressure drop is important

Model 323 mufflers

  • Circular design with acoustic liner and a center bullet when substantial noise reductions are required
  • Aerodynamically designed for maximum attenuation with minimum pressure drop

Design features

  • Sizes for any connection diameter to fit the equipment in question
  • Custom designed and manufactured to meet the attenuation needs and pressure drop constraints of each application
  • Absorptive acoustic media protected by high temperature cloth and 304 ss mesh liners
  • End intake and exhaust, as well as side intake and exhaust connections available


  • Mounting brackets, support legs, saddles and feet for muffler installation
  • Tail pipes, rain cowls and caps
  • Access panels for inspection of internals
  • Companion flanges and expansion joints
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Absorptive muffler features

Absorptive muffler features   Absorptive muffler bullet details

Absorptive muffler features - image - dB Noise Reduction

Product details


Up to 500,000 acfm


Up to 120" wg


Up to 1,200° F


From 3" ID X 24" long
to 120" ID X 240" long

Unit weight:

Up to 25,000 lbs


Carbon, stainless and corten 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.