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Reactive-Absorptive Mufflers
Models 343 and 353

Reactive-Absorptive Mufflers - Model 343 and 353
Industrial Grade, All Welded Construction

Applications
  • Engine exhaust mufflers requiring substantial noise reduction
  • Intake and exhaust silencers on PD blowers operating above their critical speed
  • Compressor intake and exhaust silencers
  • Other applications where low frequency pulse control and high mid-upper band attenuation are both required
Design features
  • Multi-chamber reactive muffler section followed by an absorptive muffler section
  • Excellent noise reduction in all octave bands
  • Reactive section includes tuned chambers and perforated tubes to remove low frequency pulsations and noise
  • Absorptive section provided with an acoustic liner on Model 343 mufflers. Model 353 mufflers also include a center bullet
  • Acoustic media in absorptive section protected by high temperature cloth and 304 ss mesh liners
  • Custom designed and manufactured to meet the attenuation needs and pressure drop constraints of each application
  • End intake and exhaust, as well as side intake and exhaust connections available
Accessories
  • 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
Reactive-absorptive muffler features
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For other customized silencer designs, please contact us and we will be happy to assist you.

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Product details

Flows

Up to 60,000 acfm (standard)

Pressures

Up to 120" wg

Temperatures

Up to 1,200° F

Sizes

From 3" ID to 30" ID (standard)

Larger diameters available

Unit weight

Up to 25,000 lbs

Materials

Carbon, stainless and corten steels

Construction

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