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Rectangular Silencers - Model 112 standard grade, sheet metal construction - dB Noise Reduction



  • Fan inlet and outlet silencers
  • Pressure blower silencers
  • Ventilation intake and discharge silencers
  • HVAC duct silencers


  • Designed to match the dimensions of the connecting equipment or ductwork
  • No transitions or plenums required
  • Aerodynamic nose design and tapered tails to minimize pressure drop
  • Double the number of silencer baffle configurations available for more precise matching of silencers to applications

Advantages over welded silencers

  • 20% to 30% cost savings
  • Much lighter than welded silencers
  • Suitable for many light/medium industrial applications


  • Galvanized and stainless steel mesh bird, insect and safety screens
  • Flanges match drilled to connecting equipment or ductwork; rectangular or circular
  • Mounting brackets, support legs, saddles and feet for silencer installation
  • Access panels and doors for inspection of internals
  • Variety of fabric, film and mesh baffle liners available for different types of service
  • Pressure and flow measurement devices including pressure taps, rings and piezometer tubes

Design options

  • Cleanable/removable baffle designs for dirty applications including special silencers that can be serviced in-situ
  • Tapered transition/evase silencers for attenuation in restricted spaces
  • Insert silencers (baffles and support structure, without casing) for installation in pre-existing ductwork and stacks
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Rectangular silencer features

Rectangular silencer features - image - dB Noise Reduction

Alternative construction - Model 113 industrial grade, all welded construction

Product details


Up to 1.5 million acfm


Up to 30" wg


Up to 250° F


From 6" X 6" X 24" long
to 240" X 240" X 120" long
(modules provided in banks
for fast site assembly)

Unit weight:

Up to 1,500 lbs per module


Mill galvanized (standard). Stainless steels
and aluminum available


20 ga to 16 ga welded sheet metal casings
with 22 ga acoustic baffles

Paint finishes:

Alkyd and enamel finishes available

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


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