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us apart - Technical data and
specifications- Silencers
- Mufflers
- Vent silencers
- Flexible connections
- Noise panels & enclosures
- Other products & assessories
- Rectangular weather hoods & cowls
- Circular weather hoods & cowls
- Filter boxes
- Resources
- Contact us
Circular silencers - Model 212 and 222
standard grade, sheet metal construction
Applications
- Fan inlet and outlet silencers
- Pressure blower silencers
- 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%
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
Circular silencer features
Alternative construction - Model 213 and 223, industrial grade, all welded construction
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
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
For other customized silencer designs, please contact us and we will be happy to assist you.
