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Circular Silencers
Models 213 and 223

Circular Silencers - Model 213 and 223
Industrial Grade, All Welded 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 213 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 223 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-6 Alternative construction - Model 212 and 222, standard grade, sheet metal silencers
View Model 212 and 222
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.

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Product details

Flows

Up to 500,000 acfm

Pressures

Up to 120" wg

Temperatures

Up to 250° F (standard)

Up to 1,200° F (special)

Sizes

From 6" ID X 24" long

to 120" ID X 240" long

Unit weight

Up to 25,000 lbs

Materials

Carbon, galvanized and stainless steels, aluminum, special alloys, high temperature steels, FRP and PVC

Construction

16 ga to 3/8' welded casings with 18 ga acoustic liners and center bullets

Paint finishes:

Alkyd, enamel, high heat, inorganic zinc, epoxy and polyurethane