•  Commercial Complex, Sector - 51 Noida
  •  sales@envirotechltd.com
  • +(91)-93110-11131
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  • PRODUCTS
    • Acoustic Enclosure
      • Acoustic Enclosure For Power Plant
      • Acoustic Enclosure For Machines
      • Acoustic Enclosure For Turbine
      • Acoustic Enclosure For Blower
      • Acoustic Enclosure For Compressor
      • Acoustical Enclosure For Punch Press
      • Acoustical Enclosure For Fin Press
      • Acoustic Drop Over Canopy
      • Acoustical Blanket Enclosures
    • Acoustic Louvers And Sound Attenuators
      • Acoustic Louver for Chiller
      • Sand Trap Louver
      • Acoustic Louvered Screens
      • Engine Exhaust Silencers
      • Industrial Fan Silencers
      • Air Intake And Discharge Silencers
    • Anechoice Chamber
      • Noise Test Booth
      • NVH Test Chambers
      • Assembly Line Noise Test Chamber
      • Anechoic Chamber
      • Metallic Anechoic Wedges
      • Mobile Control Room
      • Mini Anechoic Chamber
      • Semi Anechoic Chamber
      • Hemi Anechoic Chamber
      • Portable Anechoic Chamber
      • Acoustic Test Chamber
      • Reverberation Room
      • Work Pods
    • Acoustics Products For Commercial
      • Acoustic Wall Tiles
      • Acoustic Ceiling Tiles
      • Acoustic Window
      • Acoustic Doors
      • Acoustic Curtains
      • Floating Floor
      • Acoustic Partitions
      • Acoustic PU Foams
        • Acoustic Wedges Foams
        • Acoustic Pyramid Foams
      • Noise Barriers
        • Absorptive / Reflective Noise Barriers
        • Polycarbonate Noise Barriers
        • Studio Box
        • Audiometric Screening Booth
    • Residential Noise Control
      • Acoustic Window
      • Acoustic Curtains
      • Noise Barrier For Boundry Wall
      • Acoustic Treatment For Home Theater
    • Noise Barriers
      • Noise Barrier Manufacturer
      • Mettalic Noise Barrier
      • Polycarbonate/PMMA Noise Barrier
      • Echo Barrier
      • Bi Absorbent Noise Barriers
      • Crash Barrier
    • Sliding Folding Partitions
      • Acoustic Sliding Folding Partitions
      • Glass Sliding Folding Partitions
      • Vertical Fold Partition
      • Semi Automatic Sliding Folding Partitions
      • Movable Wall Partition
      • Non Acoustic Sliding Folding Partition
    • Acoustic Doors
      • Acoustic Metal Door
      • Acoustic Wooden Door
      • Acoustic Cum Fire Metal Door
      • Acoustic Cum Fire Wooden Door
      • Steel Door
      • Stainless Steel Door
      • Acoustic Window Metal Frame
      • Acoustic Window Wooden Frame
      • 2Hr Fire Rated Metal Door
      • 2Hr Fire Rated Wooden Door
      • Fire Door
      • Blast Proof Doors
      • Halspan Core Fire Door
    • Acoustic Consultancy
      • Noise Survey
      • Noise Analysis Of Plant
      • Site Inspections
      • Sound Insulation Testing
      • Noise Mapping
      • Mechanical Plant Noise Mitigation
      • Enviromental Noise Monitoring
  • APPLICATIONS
    • Road And Highway Noise Barrier
    • Acoustic Treatment for Power Plant
    • Anechoic Test facilities
    • Railways and Aircrafts
  • INFRASTRUCTURE
  • PROJECTS
  • CLIENTS
  • COMPANY PROFILE
    • Our Business
    • Our History
    • Research & Development
    • Manufacturing Facility
    • Quality Assurance
  • CONTACT US
    • PRODUCTS
      • Acoustic Enclosure
        • Acoustic Enclosure For Power Plant
        • Acoustic Enclosure For Machines
        • Acoustic Enclosure For Turbine
        • Acoustic Enclosure For Blower
        • Acoustic Enclosure For Compressor
        • Acoustical Enclosure For Punch Press
        • Acoustical Enclosure For Fin Press
        • Acoustic Drop Over Canopy
        • Acoustical Blanket Enclosures
      • Acoustic Louvers And Sound Attenuators
        • Acoustic Louver for Chiller
        • Sand Trap Louver
        • Acoustic Louvered Screens
        • Engine Exhaust Silencers
        • Industrial Fan Silencers
        • Air Intake And Discharge Silencers
      • Anechoice Chamber
        • Noise Test Booth
        • NVH Test Chambers
        • Assembly Line Noise Test Chamber
        • Anechoic Chamber
        • Mobile Control Room
        • Mini Anechoic Chamber
        • Semi Anechoic Chamber
        • Hemi Anechoic Chamber
        • Portable Anechoic Chamber
        • Acoustic Test Chamber
        • Reverberation Room
        • Work Pods
      • Acoustics Products For Commercial
        • Acoustic Wall Tiles
        • Acoustic Ceiling Tiles
        • Acoustic Window
        • Acoustic Doors
        • Acoustic Curtains
        • Floating Floor
        • Acoustic Partitions
        • Acoustic PU Foams
          • Acoustic Wedges Foams
          • Acoustic Pyramid Foams
        • Noise Barriers
          • Absorptive / Reflective Noise Barriers
          • Polycarbonate Noise Barriers
          • Studio Box
          • Audiometric Screening Booth
      • Residential Noise Control
        • Acoustic Window
        • Acoustic Curtains
        • Noise Barrier For Boundry Wall
        • Acoustic Treatment For Home Theater
      • Noise Barriers
        • Noise Barrier Manufacturer
        • Mettalic Noise Barrier
        • Polycarbonate/PMMA Noise Barrier
        • Echo Barrier
        • Bi Absorbent Noise Barriers
        • Crash Barrier
      • Sliding Folding Partitions
        • Acoustic Sliding Folding Partitions
        • Glass Sliding Folding Partitions
        • Vertical Fold Partition
        • Semi Automatic Sliding Folding Partitions
        • Movable Wall Partition
        • Non Acoustic Sliding Folding Partition
      • Acoustic Doors
        • Acoustic Metal Door
        • Acoustic Wooden Door
        • Acoustic Cum Fire Metal Door
        • Acoustic Cum Fire Wooden Door
        • Steel Door
        • Stainless Steel Door
        • Acoustic Window Metal Frame
        • Acoustic Window Wooden Frame
        • 2Hr Fire Rated Metal Door
        • 2Hr Fire Rated Wooden Door
        • Fire Door
        • Blast Proof Doors
        • Halspan Core Fire Door
      • Acoustic Consultancy
        • Noise Survey
        • Noise Analysis Of Plant
        • Site Inspections
        • Sound Insulation Testing
        • Noise Mapping
        • Mechanical Plant Noise Mitigation
        • Enviromental Noise Monitoring
    • APPLICATIONS
      • Road And Highway Noise Barrier
      • Acoustic Treatment for Power Plant
      • Anechoic Test facilities
      • Railways and Aircrafts
    • INFRASTRUCTURE
    • PROJECTS
    • CLIENTS
    • COMPANY PROFILE
      • Our Business
      • Our History
      • Research & Development
      • Manufacturing Facility
      • Quality Assurance
    • CONTACT US
acoustic enclosure

Engine Exhaust Silencers

Acoustic Treatment, Acoustic Enclosure Some engines mainly generate noise from their exhaust outlet. In this case fitting the engine exhaust with a silencer will help in controlling the high noise level. Industrial Noise control is an area of concern and government regulations are very strict about the noise pollution.

There are two types of engine exhaust silencerswhich are as follows:
  •    Absorptive type silencer: The absorptive engine silencer has sound control levels between 15dB(A) to 25dB(A) (type SM15P and SM25P)
  •    Reactive type silencer: The reactive and wave phase shift has a noise control level of 30dB(A) to 50dB(A) (type SM30P, SM40P, SM50P)

The silencers can be installed with catalysts or SCR systems if required by the client. The silencers are usually cylindrical in shape with a circular or oval opening. They are made of a variety of materials which depends to a large extent on the application.

Key characteristics of IAC Engine Exhaust Silencers
Our exhaust silencers have the following key characteristics and attributes :
  •   Specific applications: co-generation, containers, marine, rail, generation unit (backup, primary, no break)
  •   Circular, rectangular, or oval design
  •   Diverse material types to suit application
  •   Radial or axial intakes
  •   To satisfy the current environmental requirement, all silencers can be supplied with catalysts or selective catalytic reduction (SCR) systems

Industrial Fan Silencers

The air fan in a machine is the primary part that generates noise. The noise passed through the draft requires acoustic treatment to meet the industrial noise regulation standards. The standard requirement is 90 dB(A) to avoid hearing impairment. 80dB(A) or less is the desired level.

To reduce the level of noise the fan is fitted with an industrial fan silencer.We offer a total solution for a range of machinery including turbines. Our industrial fan silencers are customised to provide the required solution from any air moving equipment. We use a computer enhanced technology which allows us to provide precise silencers at a competitive cost.

The features of our silencers include octave band filters and pressure drop. The specifications of the silencer depend on the equipment of application.

AIRINTAKE & DISCHARGE SILENCERS

Machine rooms or acoustic enclosures that need good air circulation with plenty of fresh air need openings that can provide the needful. The openings are specially designed with inlet and outlet silencers which have FD fan and ID Fan for their two way performance. These silencers muffle the noise and help in maintaining the environment noise pollution norms. Power generation equipment needs to have noise control measures in place to deal with the noise pollution.

Our turnkey solutions using air intake and discharge silencers for industrial machines are very effective especially for diesel generators, gas turbines, compressors, combined heat and power systems.

The noise reduction capabilities of the air intake and discharge silencer is from 10 dB(A) to 50dB(A). The design of the silencer can be rectangular or circular depending on the area of application. We also make specific designs for low frequency noise control.

Applications of Air Intake and Discharge Silencers

We has extensive experience and technical knowledge of air intake and discharge silencers for all types of applications and designs that include :
  •   Intake and discharge silencers for cooling and combustion air requirements
  •   Smoke and fire extract systems
  •   Noise reduction capability from 10dB(A) to 50dB(A)+
  •   Rectangular or circular design
  •   Special designs for low frequencies noise control e.g. diesel generators
  •   Wide range of noise reduction with minimal pressure loss
  •   Large thickness panels to ensure low frequencies attenuation.

VENT SILENCERS

Vent silencers are used in a number of applications. One typical area of use is to control the noise for systems that release pressurised gases. Air vents of acoustic enclosuressuch as steam boilers or heat recovery systems use a pressure relief valve which tends to make a very loud noise when the pressure valve is opened to release the pressures. A vent silencer is very effective in muffling the sound which usually is a shill high pitched noise.

Gas turbines would require a vent silencer fitted at the pressure release valve to reduce the sound created by the release of high velocity air. The silencer is made of heavy gauge perforated sheets and has a diffuser at the inlet nozzle. The vent silencer has tolerance for high temperature and is built with optimal space consideration.


Acoustic Doors

  • Acoustic Door
  • Acoustic Metal Door
  • Acoustic Wooden Door
  • Fire Door
  • Metal Fire Door
  • Wooden Fire Door
  • Acoustic Cum Fire Metal Door
  • Acoustic Cum Fire Wooden Door
  • Steel Door
  • Stainless Steel Door
  • Acoustic Window Metal Frame
  • Acoustic Window Wooden Frame
  • 2Hr Fire Rated Metal Door
  • 2Hr Fire Rated Wooden Door

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Envirotech Other Products

  •    Acoustic Enclosures
  •   Industrial Noise Control
  •   Acoustic Partitions
  •   ECHO Barriers
  •   Acoustic Louvers Sound Attenuators
  •   Acoustic Enclosure for Machine
  •   Metallic Noise Barrier

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Envirotech Systems Limited offers the all types of certified, high performance and best quality noise barriers to resolve the noise problems. These barrier systems are sound absorptive/ reflective either one or both sides and provide excellent sound transmission loss characteristics and are easy to assembled from pre-fabricated components/materials.

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