Acoustic Attenuators and Silencers

Sonic Acoustic Attenuators deliver superior noise reduction (10-50 dB(A)) with minimal pressure loss, durable construction, and customisable designs for HVAC, industrial, and high-temperature applications.

Home » Products » Acoustic Attenuators and Silencers

Superior Noise Reduction – Reduces sound levels by 10 dB(A) to 50 dB(A) while maintaining airflow efficiency.
Durable Construction – Made from galvanised steel or aluminium with internal fibreglass or foam linings for enhanced noise absorption.
Customisable Designs – Available in cylindrical and rectangular configurations, with podded or unpodded options to suit various applications.
Tested & Certified – Compliant with ISO 7235:2023, ensuring optimal acoustic performance and minimal pressure drop.
Versatile Applications – Ideal for HVAC systems, tunnels, data centres, and industrial machinery, meeting strict noise control standards.

Sonic Attenuator Performance

Noise Reduction from 10 dB(A) to 50 dB(A) – Effectively lowers sound levels across various environments.
Minimal Pressure Loss – Maintains airflow efficiency while reducing noise.
High-Temperature Applications – Suitable for extreme environments where traditional materials may degrade.
Easy Integration – Seamlessly fits into existing duct and ventilation systems.
Podded or Unpodded Options – Available to suit different noise reduction and airflow requirements.

Sonic Attenuator Construction

- Heavy-Duty Materials – Manufactured from galvanised steel or aluminium for durability in harsh environments.
- Acoustic Linings – Internal fibreglass or foam layers enhance noise reduction.
- Custom Designs – These are available in cylindrical or rectangular configurations to suit different applications.
- Circular Silencers – Designed for suction pipelines, offering efficient airflow with minimal resistance.
- Rectangular Attenuators – Ideal for large-scale HVAC systems, ensuring optimal noise control in rectangular air channels.
Podded Cylindrical Silencer
- Enhanced Noise Reduction – The internal pod disrupts sound waves, increasing absorption and reflection.
- Efficient Airflow – Maintains airflow while reducing unwanted noise in HVAC systems.
Unpodded Sonic Acoustic Attenuator
- Alternative Noise Control – Uses airflow direction changes, turbulence, and specialised internal geometries.
- Durable Metal Construction – Made from galvanised steel or aluminium with perforated surfaces for effective sound diffusion.
Accessories
- Acoustically & Thermally Rated Expansion Joints – Custom-manufactured to fit attenuator casings.
- Exhaust Stacks – Built to withstand environmental loads.
- Fabrication Compliance – Manufactured to AS4100 and AS1554 standards.

How to Specify Sonic Acoustic Attenuators

Specify Flexshield Sonic Acoustic Attenuators – Painted in Dulux Grey Nurse colour.
Determine Noise Reduction Needs – Designed to meet required insertion loss (dB) at specific frequency bands (125 Hz – 4 kHz).
Fabrication & Installation – Built to manufacturer specifications, with quantity and sizes referenced in project drawings.

Phone: 1300 799 969

Email: sales@flexshield.com.au

Superior Noise Reduction – Reduces sound levels by 10 dB(A) to 50 dB(A) while maintaining airflow efficiency.
Durable Construction – Made from galvanised steel or aluminium with internal fibreglass or foam linings for enhanced noise absorption.
Customisable Designs – Available in cylindrical and rectangular configurations, with podded or unpodded options to suit various applications.
Tested & Certified – Compliant with ISO 7235:2023, ensuring optimal acoustic performance and minimal pressure drop.
Versatile Applications – Ideal for HVAC systems, tunnels, data centres, and industrial machinery, meeting strict noise control standards.

Sonic Attenuator Performance

Noise Reduction from 10 dB(A) to 50 dB(A) – Effectively lowers sound levels across various environments.
Minimal Pressure Loss – Maintains airflow efficiency while reducing noise.
High-Temperature Applications – Suitable for extreme environments where traditional materials may degrade.
Easy Integration – Seamlessly fits into existing duct and ventilation systems.
Podded or Unpodded Options – Available to suit different noise reduction and airflow requirements.

Sonic Attenuator Construction

- Heavy-Duty Materials – Manufactured from galvanised steel or aluminium for durability in harsh environments.
- Acoustic Linings – Internal fibreglass or foam layers enhance noise reduction.
- Custom Designs – These are available in cylindrical or rectangular configurations to suit different applications.
- Circular Silencers – Designed for suction pipelines, offering efficient airflow with minimal resistance.
- Rectangular Attenuators – Ideal for large-scale HVAC systems, ensuring optimal noise control in rectangular air channels.
Podded Cylindrical Silencer
- Enhanced Noise Reduction – The internal pod disrupts sound waves, increasing absorption and reflection.
- Efficient Airflow – Maintains airflow while reducing unwanted noise in HVAC systems.
Unpodded Sonic Acoustic Attenuator
- Alternative Noise Control – Uses airflow direction changes, turbulence, and specialised internal geometries.
- Durable Metal Construction – Made from galvanised steel or aluminium with perforated surfaces for effective sound diffusion.
Accessories
- Acoustically & Thermally Rated Expansion Joints – Custom-manufactured to fit attenuator casings.
- Exhaust Stacks – Built to withstand environmental loads.
- Fabrication Compliance – Manufactured to AS4100 and AS1554 standards.

How to Specify Sonic Acoustic Attenuators

Specify Flexshield Sonic Acoustic Attenuators – Painted in Dulux Grey Nurse colour.
Determine Noise Reduction Needs – Designed to meet required insertion loss (dB) at specific frequency bands (125 Hz – 4 kHz).
Fabrication & Installation – Built to manufacturer specifications, with quantity and sizes referenced in project drawings.