Performance Attenuation for Rectangular Connections

Typically used in rectangular duct systems, with AHU systems, and on plant that requires a high level of attenuation. Our rectangular silencers feature variable splitter configurations allowing for a balance between system resistance and acoustic performance.

Our High-Performance R02 Rectangular Silencers:

Designed for use with AHU systems and plant systems requiring high levels of attenuation, our high-performance rectangular attenuators offer excellent noise reduction.

  • Excellent Attenuation: Achieved with sound-absorbing infill splitters retained by a perforated liner.
  • Seven Standard Lengths: 600mm, 900mm, 1200mm, 1500mm, 1800mm, 2100mm, and 2400mm.
  • Customizable Dimensions: Available in 1mm increments, with no maximum size, as large units are assembled in modules.
  • Automated Engineering Options: Easily select plenum at entry or exit, circular or rectangular offset spigots, various flange connections, and special interfaces
  • High Performance: Suitable for system pressures up to 1500 Pa.

Our rectangular duct-mounted splitter silencers are “mass customised” to balance airflow volume, resistance, self-generated noise, and insertion loss according to your specific requirements.

Product Data Sheet

The resistance to airflow is a function of the face velocity and length. It is not recommended to select the R02 Silencers with a face velocity above certain limits, depending on the model, without asking advice regarding re-generated self noise. We can advise on the selections and can perform system analysis to ensure the correct unit is specified.

Material & Finish

All components are manufactured from mill finish hot dip galvanised mild steel conforming to EN10327 (BS2989). To prevent erosion of absorbing materials, our rectangular silencers are fitted with perforated splitters manufactured from galvanised mild steel conforming to EN10327 (BS2989). Rectangular silencers utilise acoustic grade mineral fibre absorbing infill and are manufactured to the HVCA specification DW144 class B and M&E 100 for sheet steel thickness and stiffening.

  • Pressure up to 1500 Pascals positive and negative.
  • Temperature -12° to +100°C.
  • Location internally & externally mountable.

We can also supply custom materials such as 304 and 316 grade stainless steels, cold reduced (CR4) mild steel and aluminium.

Connection Extras

Circular spigot end caps, MEX Flanges, Ductmate Flanges and more are available!

Painted Finish

We have a range of finishes including painting to your bespoke needs.

Optional Melinex Lining

For critically clean applications, Melinex lining can be included to prevent fibre migration.

Looking for Residential Silencers? We Have You Covered!

Bespoke Rectangular Silencers

Looking for something more bespoke?

As well as our standard silencers, we can also offer bespoke attenuator construction for use in industrial and marine applications.

This can include, but not limited to, the following specifications:

  • Full fabrication and welded seams
  • Stainless steel specification
  • Heavy-duty gauges up to 10mm
  • Lightweight aluminium/aluzinc specification

For more information, please get in touch via the contact form below.

Interested? Make an Enquiry
Fill in the form below or call 01206 852389.

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