Annular ring circular silencers - Model 243
industrial grade, all welded construction

Applications

Excellent alternative to parallel baffle circular silencers. Ideal for use on large axial fans requiring low pressure, symmetric airflow
Good choice for use as insert silencers and when small passage widths are required for mid to high frequency attenuation

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

Cleanable and removable annular baffle ring designs for dirty applications
Insert silencers (annular rings and support structure, without casing) for installation in pre-existing ductwork and stacks

Annular ring circular silencer features - image - dB Noise Reduction

Alternative construction - Model 242, standard grade, sheet metal silencers

Up to 500,000 acfm

Up to 120" wg

Up to 250° F (standard)
Up to 1,200° F (special)

From 36" ID X 36" long
to 120" ID X 240" long

Up to 25,000 lbs

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

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

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

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