We work with top manufacturers who engineer industrial fan silencers—also known as attenuators—designed to reduce fan-generated noise without significantly compromising airflow or system performance. Whether installed on the inlet or discharge side of axial or centrifugal fans, these silencers use precision-tuned acoustic materials and baffle arrangements to attenuate mid- to high-frequency noise. With typical reductions ranging from 10 to 20 dBA, they offer an effective solution for compliance with OSHA and environmental noise regulations, while preserving fan efficiency.
These silencers are available in a range of configurations, including circular, rectangular, and elbow designs, with options for custom duct transitions to match your system layout. They are built using robust materials such as galvanized steel, stainless steel (304 or 316), aluminum, or FRP (fiberglass reinforced plastic) —each suited for specific environments ranging from high-temperature exhausts to corrosive industrial atmospheres. Optional coatings and finishes are available for added protection against chemicals, weather, or abrasive airflow conditions.
Each unit is engineered for the lowest pressure drop possible to ensure optimal system performance. Split-body and flanged designs allow for easy installation, even in tight or constrained spaces. High-temperature and high-pressure configurations are available for demanding applications, along with cleanable versions for dust-laden or dirty air streams. For systems with tonal noise or specific frequency concerns, custom-tuned silencers are also available to deliver enhanced attenuation performance.
Common applications include: HVAC sound attenuation, dust collection and fume extraction systems, industrial exhaust stacks, and process ventilation ducts. These solutions are widely used in power plants, manufacturing facilities, and process industries—anywhere that quiet operation and regulatory compliance are critical.
With nearly 50 years of experience, DMC Sales, Inc has aligned themselves with manufacturers that design each attenuator to meet the real-world demands of harsh environments and high-performance systems. If you need guidance selecting the right attenuator—or require a custom-engineered solution—our team is here to help. Contact us today to discuss your application and ensure safe, quiet, and efficient system operation.
