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Circular Silencers
Models 212 and 222

Circular silencers - Models 212 and 222
Standard Grade, Sheet Metal Construction

Applications
  • Fan inlet and outlet silencers
  • Pressure blower silencers
  • Intake silencers on engines
  • Exhaust stack silencers
  • Ventilation intake and discharge silencers
  • HVAC duct silencers
Model 212 silencers
  • Straight through circular silencers with acoustic liner, but without a center bullet
  • No obstructions in the airstream
  • Good for smaller diameter connections and when low pressure drop and economy are priorities
Model 222 silencers
  • Circular silencers with acoustic liner and a center bullet when substantial noise reductions are required
  • Aerodynamically designed for maximum attenuation with minimum pressure drop
  • When used on inline axial fans, we can fine tune the center bullet so that it matches the fan hub diameter, reducing pressure drop by as much as 50%
Circular silencer features
features-img-7 Alternative construction - Model 213 and 223, industrial grade, all welded construction
View Model 213 and 223
Advantages over welded silencers
  • 20% to 30% cost savings
  • Much lighter than welded silencers
  • Suitable for many light/medium industrial applications
Accessories
  • Galvanized and stainless steel mesh bird, insect and safety screens
  • Drilled flanges matched to the connecting equipment or ductwork
  • 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 and removable liner/bullet designs for dirty applications
  • Tapered transition/evase silencers for use on axial flow fans and for attenuation in restricted spaces
  • Insert silencers (liner, bullet and support structure, without casing) for installation in pre-existing ductwork and stacks

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

Request a Quote

Product details

Flows

Up to 120,000 acfm

Pressures

Up to 30" wg

Temperatures

Up to 250° F

Sizes

From 6" ID X 24" long

to 60" ID X 120" long

Unit weight

Up to 1,500 lbs

Materials

Mill galvanized (standard). Stainless steels and aluminum available

Construction

20 ga to 16 ga welded sheet metal casings with 22 ga acoustic liners and center bullets

Paint finishes:

Alkyd and enamel finishes available