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Industrial Noise Control

Purchase Industrial Noise Control Products

SysTech is experienced in developing industrial noise control strategies that meet OSHA and NIOSH regulations for a wide range of industrial environments and manufacturing sites. Noise is a big problem that companies need to keep working on, whether it’s inside a building and affecting the workers or outside a building and affecting the people who live nearby.

Read about our noise attenuation techniques, the products and systems we use, and the manufacturers we most commonly work with.

“Noise in an industrial environment can be a difficult, but necessary, problem to tackle. SysTech has the experience and products to achieve regulatory (OSHA) and/or municipal compliance to noise regulations and ordinances.” – Matt Glover 2009

Occupational & Outdoor Noise Control

Occupational noise is regulated in the workplace and corrective steps are documented to protect employees in the workplace from excessive exposure. Specifically, employees who encountering continued excessive noise levels might develop hearing loss and high-stress levels along with compromised safety issues.

Industrial non-occupational environmental noise compliance is typically defined by attenuation requirements or noise impact at a critical receptor point or at the property line.  The noise source may be construction activities, manufacturing/production operations, or upset condition alarms. Agencies governing this type of noise are typically at the local level, but this can vary by state and municipality. Typical ordinances include:

  • Allowable noise levels during daytime or nighttime hours
  • Classification of areas into residential, commercial or industrial
  • Defined decibel levels deemed to be acceptable for each category

How does SysTech address these potentially adverse acoustic issues?

Lo-Noise Fan Modules

Compressor buildings are pressurized with SysTech attenuated supply fans that expel heat build-up from large compressors and engines. These “drop-in” fan modules attenuate compressor, drive motor, and fan noise to meet Regulations/Codes at adjacent properties.

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Machine Noise Enclosures

Loud machinery is isolated by encapsulating it with noise blankets attached with Velcro closures to a framework structure. These enclosures are constructed with viewing windows, access panels, man doors, or overhead panels for crane access. 

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Fan Noise Control

Noise from industrial exhaust fans discharging into a tall stack is attenuated with outlet silencers packed with fiberglass absorptive media. And the drive motors have noise enclosures with fan housings wrapped with acoustic blankets.        

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Industrial Process Silencers

Industrial processes have a broad range of attenuation requirements, and industrial process silencers are available with features specifically designed for compressors, PD blowers, vents, blow-offs, and stacks.

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Fan & Blower Silencers

Fans are rotating equipment and produce elevated sound levels from their inlet and outlet, which may be objectionable. Industrial fan silencers are designed using the fan manufacturers’ sound data and applied as required to meet local noise criteria.

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Industrial Noise Enclosures

Encapsulating a high-level noise producer at its’ source is accomplished using double-walled modular panels with acoustic fill, often mounted on a structural base. These are custom designs with options that include windows, access panels, or man doors.

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Custom Noise Enclosures

Noise enclosures can be designed and installed as a wrap-around wall panel system using double-walled panels that encapsulate a plant’s machinery area. Custom design options include lighting, controls, doors, and ventilation/ dust collection systems.

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Acoustic Louvers

Acoustic louvers allow air movement through a building area or enclosed space. Internally generated noise transmitted to outside low-noise designated areas is attenuated, along with rain entrainment kept to a minimum.

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In-line Duct Silencers

Rooftop-mounted supply fans may introduce objectionable sound levels into staffed low-noise production areas. These are addressed with an in-line duct silencer integrated with a distribution plenum that reduces air velocity noise.

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Fan Housing Noise Reduction

While fan inlet and outlet noise are addressed with silencers, different fan designs will generate varying levels of housing noise, requiring that they be wrapped with an acoustic blanket to meet overall sound attenuation requirements.  

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FRP Fan Silencers

Fan silencers should be constructed of materials suitable for their airstream constituents. If the airstream contains aggressive chemistry, the silencers can be built of fiberglass (FRP) and sized for the inlet or outlet flange connection.   

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Fan Discharge Silencers

Exhausting high heat loads from buildings using multiple roof-mounted fans may produce elevated sound levels. This elevated noise is addressed with SysTech Lo-Noise attenuated fan packages having “drop-in” roof designs to facilitate installation.

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Noise and Vibration Control Engineering Services

Knowing and defining the noise intensity, those impacted by the noise, and who is requesting noise controls be put in place are all essential parts of a noise control solution. It is critical to determine the extent of the noise issue before formulating an attenuation scheme.

And it is important to remember that when a single piece of machinery needs to be attenuated, knowing the other noise producers in the vicinity and the building construction impact the final noise solution.

Some of our services, offerings, and tasks include:

  • Noise modeling
  • Analysis and control of “noisy” machines and process equipment
  • Noise and vibration engineering design, research, and control
  • Sound intensity measurements
  • Sound power measurements
  • Plant noise surveys
  • Community noise surveys
  • Rotating equipment measurements
  • Structure-borne noise and vibrations analysis
  • Noise source analysis and control
  • Noise source identification and measurement
  • Zoning compliance measurements
  • Noise barrier design
  • Occupational noise measurements
  • Noise enclosure design
  • Personnel sound booths and control room


Industrial Noise Control Products and Systems

The environmental impact caused by industrial processes such as vent blow-offs, rooftop fans and HVAC equipment, chillers, cooling towers, oil and gas building ventilation systems, power gen engines, and other noise generating processes can be addressed by installing various types of noise abatement equipment. We partner with the leading manufacturers of industrial noise control products and systems to offer a broad range of reliable industrial noise control solutions.

Industrial Fan Silencers – Fans are found in almost all industrial applications and can be large contributors to the problem of industrial noise. Exhaust and supply fan silencers can significantly reduce noise in both indoor and outdoor environments.

Axial fan attenuators

Skid mounted packaged axial fan attenuators

Acoustic Louvers – Where ventilation air is required, addressing noise concerns from a processing area within a building or machinery noise mitigation from a facility, acoustic louvers are a proven means of attenuation.

Industrial Exhaust Silencers – In addition to selecting the right noise control equipment, SysTech will access the entire noise attenuation application and reduce the overall sound level.  Process silencers are applied to PD blower and compressor exhausts, stack discharges, and the venting or blow-off of high-pressure gases.

Noise Control Enclosures – Engineered acoustically for superior noise control, sound enclosures are an extremely effective means for containing industrial equipment noise.

Duct Silencer – Where noise radiates from a ducted system or enclosure, duct silencers are typically applied with success.

Acoustic Building Ventilation Systems – When very high equipment noise levels are present in a building caused by large compressors, engines, generators, and motors, and heat removal ventilation systems are required, SysTech offers customized acoustic ventilation systems to meet both ventilation and noise reduction requirements.

Duct Lining – Ventilation systems using acoustic absorbent material such as foam or fiberglass will effectively decrease airborne noise.

Vibration Isolation Pads – Vibration control, employing anti-vibration machine mounts such as springs or neoprene will reduce transmission of noise created by vibration.

Acoustic Flexible Connectors – They serve a dual purpose in containing noise generated by the fan blade rotation and that induced by vibration.

Acoustic Blankets/Wraps – Attenuate noise from the equipment casing with high-density sound blankets.


Industrial Noise Control Product Manufacturers

We represent the leading industrial noise control manufacturers and are able to offer a complete range of noise attenuation products to meet noise control needs or requirements.

Noise Suppression Technologies Inc.
Noise Suppression Technologies engineers and manufactures custom-designed acoustic, soundproofing, and industrial noise control solutions. Whether your noise control problem is industrial, commercial, or residential, this line of cost-effective soundproofing solutions will provide the answer.

VAW Systems Ltd.
VAW is an industry leader in the design and manufacturer of industrial noise control products. From industrial silencers on the intake or discharge of fans and blowers, to industrial-duty acoustic enclosures and barrier systems, they know what it takes to get the noise out.  Also, they offer engineered vent and blow-off silences for air, steam, and natural gas along with custom designed packages for inlet filtration systems.

Optional Industrial Noise Control Walkthrough, Inspection or Troubleshooting

We can help remotely if needed! Industrial noise control walkthroughs will help us to better understand the magnitude of the noise issue and important space constraints that might inhibit a specific mitigation technique. Noise data is collected that will give us an order of magnitude and suggest possible solutions.

Let SysTech be part of your Noise Abatement Solution

SysTech is experienced in developing industrial noise control solutions for a wide range of industrial environments. Call SysTech to discuss your industrial noise control needs.


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