Duct Silencers & Acoustic Louvers
Rectangular and circular duct silencers, as well as acoustic louvers, control the noise generated by air moving equipment. Air duct silencers and acoustic louvers are commonly used at the intake and exhaust openings to reduce noise to an acceptable level.
The proper design addresses airflow and available pressure drop in conjunction with the exact sound levels that exist.
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Product Features
OES Rectangular and Cylindrical Attenuators
- Effective, predictable noise reduction
- More cost-effective than other noise reduction methods
- Manufactured with controlled acoustic performance levels
- Acoustic and aerodynamic performance
- Designed and manufactured to specific requirements designated by acoustical consultants, consulting engineers, owners and contractors
- Most economical choice for solving a wide range of noise control problems in HVAC engineering
Quiet-Vent® Duct Silencers
- Modern, low cost units
- Easy to install
- Permit circulation of air in either direction
- Effectively stops air passage noise through vents (in both directions)
Quiet-Duct® Rectangular Duct Silencers
- Suitable for conventional applications, including low-frequency silencers having acoustic performance
- Specifically engineered for the 63 Hz, 125 Hz and 250 Hz octave bands
Clean-Flow® Rectangular Duct Silencers
- Ideal for systems requiring a higher degree of cleanliness and hygiene, such as hospitals or clean room applications
- Linings on fill material guard against erosion of particulate matter into the air-stream
- Internal construction features protect lining against chaffing or premature failure
- Internal construction features maintain rated aero-acoustic performance
Conic-Flow® Tubular Duct Silencers
- Available for silencer applications, including low-frequency silencers having acoustic performance
- Specifically engineered for the 63 Hz, 125 Hz and 250 Hz octave bands
Related Applications
Popular applications for this product include:
Manufacturing & Industrial
Noise control problems in industrial & manufacturing sectors are solved with equipment noise isolation via machine noise enclosures, modular in-plant offices or a combination of both.
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Building Systems
Building systems—most notably HVAC systems and the mechanical rooms that contain them—can be a major source of noise without proper noise reduction treatments.
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Product Testing & Development
Acoustically-treated enclosures designed to provide consistent testing environments for precise measurements while providing sound isolation from external environments.
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Security & Law Enforcement Soundproofing
Soundproofing & noise control for security, emergency and law enforcement facilities. Our sound control solutions dramatically reduce noisy distractions caused by open-concept spaces, callers, respondents, equipment, etc.
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Radio, TV & Post Production
Studio soundproofing solutions allow for crisp, clear editing and production in recording studios, control rooms and editing rooms for radio, TV, music & movie environments.
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Restaurants, Hotels & Convention Centers
Noise control products and soundproofing for hotels, restaurants & other hospitality facilities is critical for keeping guests, employees and neighbors comfortable & happy.
Learn MoreOur Service Offerings
O'Neill Engineered Systems, Inc. offers complete noise control solutions to suit your specific needs. Click on one of our services below to learn more about what we can offer you.
Related Downloads
Click on a PDF below to download technical brochures with detailed specifications, images, graphs and more.