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IES Air Quality and Acoustical Ventilation Systems

IES engineers design quiet ventilation systems. Quiet ventilation is needed when breakout noise is a problem or when the ventilation system itself is the dominant noise source.

Industrial equipment creates heat build-up inside an enclosure or facility. Channeling air over the equipment supplies cooling and removes heat. Noise from equipment inside the building escapes through openings that intake and exhaust cooling air. These openings must be silenced if it is not to disturb the surrounding environment.

In some cases, the interior of the building is quiet but noise from the large ventilation fans that bring in and expel air is a problem that must be attenuated.

To treat noise breakout or fan noise, we utilize:

• Quiet fans (axial or radial)
• Acoustically lined ridge vents
• Acoustically lined weatherhoods
• Acoustically lined plenums
• Acoustically lined louvers
• Custom-designed silencers

Silenced Turbine Intakes & Exhausts

IES builds quiet into turbine intake and exhaust systems as part of our total acoustical facility design, treating intake and exhaust noise with:

• Inlet and exhaust silencers
• Air inlet filtration
• Duct sound abatement

Inlet and Exhaust Silencers

IES guarantees the quiet performance of the silencers we supply. Our silencers are tested for various DIL's (Dynamic Insertion Losses) to arrive at the silencer design requirements needed to meet the noise level target while maintaining acceptable pressure drops. We installs:

• Intake silencers
• Exhaust silencers in a vertical stack
• Exhaust silencers in horizontal ductwork
• HRSG (Heat Recovery Steam Generator) exhaust stack silencers

Air Inlet Filtration

Our acoustical, mechanical and structural engineers can design complete air inlet silencing systems, including filter houses of various configurations.

Duct Sound Abatement

Breakout noise and vibrations from intake and exhaust ducts can be enormous depending on engine size. To treat duct noise, IES offers acoustical:

• Lagging
• Double wall construction
• Vibration isolation
• Acoustic expansion joints

Gas Turbine Silencers (For specs on our line of standard silencers follow the link at the left of the page to Silencers)

The silencing of gas turbine installations in industrial environments is basically a problem of attenuating the noise from the atmospheric inlet and the exhaust openings. In installations in residential and rural areas, the sound from the gas turbine enclosure, auxiliaries, and driven equipment also must be considered in the silencing program. Some degree of attenuation can be attained by natural factors, such as divergence, directivity, air absorption, and duct configurations. Further sound control, however, must be obtained through the use of adequate silencers.

Silencers normally contain one or more passages which are lined with sound absorbing materials, incorporated in structures that protect them from erosion from air flow. To attenuate low frequency sounds, thick baffles widely spaced should be employed for optimal performance; whereas for high frequency sounds, the best absorption is obtained by using thin baffles closely spaced. Middle frequency sounds can be absorbed by both thick and thin baffles, but intermediate thickness baffles are more desirable. Increased attenuation, at times, may be achieved by incorporating bends or elbows into the silencer.

Silencers should be as short in length as possible, consistent with reasonable cross sectional areas and pressure drop. These aerodynamic considerations mean that silencers must permit airflow of the gas turbine unit to continue unhampered.

Dust Collectors by STEELCRAFT 

Model MP FILTREX® Pulse Jet Fabric Dust Collector Walk-In Tube Service Plenum Down-Flow Inlet Design Snap-Back Tube Collars Pre-Cleaning Distribution Baffle Optional Supports One-Piece Shipment Media to 3957 square feet

Model MPT FILTREX® Pulse Jet Fabric Dust Collector Walk-In Tube Service Plenum High Temperature Operation Snap-Back Tube Collars High Loading Inlet Design Optional Supports One-Piece Shipment Media to 4693 square feet

	Model MS FILTREX® Pulse Jet Fabric Dust Collector Walk-In Tube Service Plenum Down-Flow Inlet Design Snap-Back Tube Collars Pre-Cleaning Distribution Baffle Optional Supports Welded Sub-Assembly Design Media to 9880 square feet
	Model MST FILTREX® Pulse Jet Fabric Dust Collector Walk-In Tube Service Plenum High Temperature Operation Snap-Back Tube Collars High Loading Inlet Design Optional Supports Welded Sub-Assembly Design Media to 11,733 square feet

Model MT FILTREX® Pulse Jet Fabric Dust Collector Top Access Tube Service Down-Flow Inlet Design Snap-Back Tube Collars Pre-Cleaning Distribution Baffle Internal Cleaning System One-Piece Shipment Media to 2127 square feet

Model MTI FILTREX® Pulse Jet Fabric Dust Collector Inside Access Tube Service High Loading Inlet Design Quick Release Tube Clamps Low Headroom Requirements One-Piece Shipment Media to 1778 square feet

Model MR FILTREX® Pulse Jet Fabric Dust Collector/ Pneumatic Receiver Side or Top Tube Service High Loading Inlet Design Snap-Back Tube Collars or Quick Release Tube Clamps Optional High Pressure Design One-Piece Shipment Media to 1037 square feet

Model J FILTREX® Pulse Jet Fabric Dust Collector Rollout Side Tube Service Down-Flow Inlet Design Snap-Back Tube Collars Low Headroom Requirements Pre-Cleaning Distribution Baffle Modular Two-Piece Shipment Media to 1265 square feet

Model S FILTREX® Reverse Jet Fabric Dust Collector Walk-In Tube Service Plenum Cyclonic Pre-Cleaner with Baffle Involute Air Inlet Snap-Back Tube Collars Calibrated Reverse Jet Cleaning Flow Welded Sub-Assembly Design Media to 8892 square feet

Model SP FILTREX® Reverse/Pulse Jet Fabric Dust Collector Walk-In Tube Service Plenum Designed for Low Bulk-Density Materials Primary Cyclonic Separator Involute Air Inlet Snap-Back Tube Collars Pulse-Assist Cleaning System Media to 6620 square feet

Model C FILTREX® Pulse Jet Cartridge Dust Collector Roll-Out Side Cartridge Service Down-Flow Inlet Design Low Headroom Requirements Pre-Cleaning Distribution Baffle Modular Two-Piece Shipment Media to 20,000 square feet

Model CH FILTREX® Pulse Jet Cartridge Dust Collector Side Cartridge Service Down-Flow Inlet Design Low Headroom Requirements Inlet Distribution Baffle Modular Design Media to 36,000 square feet

	Adjustable NEMA Standard Motor Bases Belt or Chain Drive Single and Double Adjusting Screws NEMA Sizes in Inventory

Multiple Motor, Gear Reducer Mounting Systems Face Plate Patterns Fabricated to Specification Maximum Strength to Weight Ratio 7 Sizes to fit 41 Motor Frames

U to T-Frame Conversion Units Precise Adaption Fixed or Adjustable 8 Sizes in Inventory for Series 18x to 44x

In-plant Environmental System 2000 noise control and dust collection products

 

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Acoustical Enclosures, Weather-tight Enclosures, Humidity Control Enclosures, Portable Enclosures, Curtain Enclosures, Smoke Capture Enclosures, Mist Control Enclosures, Dust Collection..... for Blowers, Clean Rooms, Chippers, CNC centers, Compressors, Fans, Generators, Granulators, Grinders, Molders, Planers, Pumps, Test Cells, Turbines, Work Stations ...... any noise source. 

We knock out noise. Getting your work world down to 85dBA and below