Absorptive Silencer
Broadband Attenuation Of Industrial Noise With Minimum Pressure Drops
Absorptive Silencers are providing a broadband attenuation of all industrial noises, with a high acoustic performance on medium and high frequency bands. Depending on the application, Burgess Manning is proposing tailor-made solutions:
Atmospheric Absorptive Silencers
Purely absorptive silencers are particularly suitable for atmospheric fans air intake and discharge, cooling applications, as well as for small and medium-sized gas turbines operating at atmospheric pressure. Using high-quality acoustic infill and materials, their performance is typically related to their size, with attenuations ranging from 15 up to 60 dBA. Burgess-Manning’s proven design ensures minimum pressure drop so that your silenced equipment’s efficiency is optimized.
Absorptive silencers can also integrate a reactive section to address dominant low frequencies and reduce the pulsations generated by reciprocating gas or diesel engines or positive displacement and screw blowers and compressors.
Pressurized Absorptive Silencers
Absorptive silencers can also be used at the suction or discharge side of centrifugal compressors to reduce the noise radiated by piping networks. In that case, silencers are generally designed according to major international standards as complete pressure vessels.
Burgess Manning ACA, ACB and CA silencers offer the standard ranges of absorptive silencers. Reference product sheets for detailed specifications.
Applications:
- Compressors
- Centrifugal fan
- Vacuum pumps
- Engines
- Gas Turbines
- Valves
Minimum Information Required For Getting A Quote
- Fluid type and molar weight
- Operating pressure and temperature
- Inlet and outlet connecting diameters
- Max allowable pressure drops through the silencer
- Noise source noise spectrum by octave or third-octave bands
- Required silenced noise level
- Location of the noise guarantee point
Acoustic Principles:
Absorptive – Cylindrical design, can be combined with a reactive section to address the specific noise frequencies’ emergence.
Product Features & Benefits:
- Guaranteed acoustic performance, up to 60 dBA attenuation.
- Minimum pressure drops.
- Atmospheric or pressure vessel design
Design:
Standard Units:
- See details in data sheets (CA, ACA & ACB), linked below
Custom/pressure vessel units (often called in-line silencer):
- Material: typical is Carbon Steel or Stainless Steel. But they can be fabricated from any metal.
- Dimensions : >2,5m diameter & 12m long
- Design pressure: 100 bar
- Design temperature: 650 °C
Certications:
- PED 14/68/EC
- UKCA
- ASME “U” stamp
Design Codes:
- ASME B31.1
- ASME B31.3
- ASME B31.8
- ASME VIII Div 1
- ASME VIII Div 2
- EN13445
- EN13480
Options:
- Vertical or horizontal installation
- Axial or side inlets and outlets
- Flanged or butt weld connection
- Supporting saddles or side supports
- Rain cap or elbow
- Roof passage
Design Overview
Design allows gas flows through an annular passage lined with perforated tubes backed by multiple layers of sound absorbing materials.
Absorptive Silencer Applications
- Compressors
- Centrifugal fan
- Vacuum pumps
- Engines
- Gas Turbines
- Valves
CONNECTION DIAMETER
Standard connection sizes range from 1” to 48” with a wide range of accessories to work with your silencer.
Relevant Industries
Related Products
Make every area of your facility quieter, safer and compliant. Explore all Burgess-Manning noise reduction products.
Vent Silencer
Reactive Silencer
Water Separator Silencer
In-line Silencer
Ready To Discuss Your Project?
