RCSA: Round Dissipative Sound Attenuator for Ducts

The RCSA is a high-performance round dissipative sound attenuator (silencer) designed specifically for HVAC systems with circular ducts. Engineered to provide an effective solution for all HVAC discharge noise, the RCSA features a central “POD” that minimizes air pressure loss and regenerated noise, ensuring your system runs quietly and efficiently.

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Key Features & Construction

• Optimized for Round Ducts: Designed exclusively for use in round ductwork, the RCSA provides a seamless and effective solution for noise reduction in circular HVAC systems.
• Streamlined Central POD: The central “POD” is engineered with a radiused end, which helps minimize air pressure loss and regenerated noise while providing a powerful acoustic barrier.
• Durable & Protected Build: Constructed from a robust 20-gauge galvanized frame, the silencer is built for long-term reliability. The acoustic infill is compressed and contained behind a perforated metal sheet, which prevents fiber erosion from high-velocity air.
• Customizable Acoustics: The central POD can be removed for diameters greater than 14”, allowing for greater flexibility and customization of acoustic performance.

Specifications & Options

• Materials: 20-gauge galvanized steel (18-gauge or 16-gauge options available)
• Standard POD: 8″ wide, radiused at one end
• Diameters:
  • Minimum: 6” (without POD), 14” (with POD)
  • Maximum: 60” (special orders available)
• Lengths:
  • Minimum: 24”
  • Standard: L = 1D or L = 2D (for diameters ≥ 26”)
• Flange: Standard galvanized 2″ flange (50mm)
• Other Options: Aluminum Construction

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