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4 Yrs
No. 112, Fairview Avenue
Wind Gap (County), Pennsylvania-18091, United States+(1)-610-8636300
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Ventilation Silencers High

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HVAC in-line circular model CM4 silencers with sound absorbing center bullets ready for shipment.Industrial forced draft fan with model 3RL rectangular inlet silencer, support legs and transition.
  • Predictable acoustic and aerodynamic (pressure loss performance)
  • Source and path control
  • Suitable for new and retrofit applications
  • Available in round, rectangular, oval and custom configurations
  • Durable galvanized steel construction (other materials also available)
  • Special designs for hospital, pharmaceutical and food processing
  • Standard lab tested designs available
  • Can be customized with flanges, brackets, transitions, etc.
  • Spot weld construction for low pressure applications and continuous wel construction for high pressure service over 15" w.g.
  • Building ventilation systems
  • Laboratory hood exhaust systems
  • Process/industrial fans, blowers and compressors
  • Dust collectors
  • Incinerator systems
  • Atmospheric vents
  • Enclosure and mechanical space ventilation systems (louvers)
  • Clean air emissions control systems
  • Induced draft and forced draft fans
  • Highway tunnel ventilation systems
  • Glass tempering/quenching operations
  • Fan powered VAV boxes
  • Fan inlet box silencers
  • Fan filter silencers

About BRD HUSH DUCT™ Silencers:

Schematic representation of series C circular silencers (top) and series R rectangular silencers (bottom).
BRD silencers consist of parallel baffles or bullets constructed of perforated metal with rounded aerofoil design. The baffles are filled with sound absorptive material. A durable outside casing (solid sheet) provides the structural integrity of the unit while acting as a barrier to contain and reflect sound waves into the packed sections. Controlling the baffle and airflow passage thickness and spacing allows HUSH DUCT™ silencers to be tuned to reduce the most offending tones or frequencies. BRD sales engineers have the experience and knowledge to help you determine the requirements of your project and select hte most cost-effective standard or custom design for the application. Thin profile acoustical louvers (4" to 12") are available for building ventilation applications to/from mechanical equipment rooms.


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