Brand: HEE-Duall

Duct, Hoods and Stacks

Duct, Hoods and Stacks

HEE-Duall

Offered separately or as an integral component of our scrubber systems, our HEE-Duall brand custom fiberglass reinforced plastic (FRP) exhaust Duct, Hood, and Stacks are an ideal and preferred method of venting in a variety of applications over traditional materials.

Our manufacturing process ensures uniform thickness and the highest quality finish, and we use premium quality resin and glass systems with rich resin interiors for corrosion resistance and fire-retardant exteriors that are UV stabilized.

We manufacture both round and rectangular duct. Round duct is available in standard 3-to-144-inch diameters, with non-standard and rectangular sizes available designed to suit your specific needs. Our duct and fittings are manufactured utilizing filament winding and hand lay-up techniques that comply with applicable ASTM (American Society for Testing and Materials) and National Bureau of Standards (NBS) standards.

For over four decades, HEE-Duall has been a global leader in the design and supply of purification systems. With state-of-the-art technology, our products are designed to remove hazardous and volatile exhaust compounds in multiple industries. We craft everything you need for collecting, handling, and controlling corrosive wastes. Our Duct, Hoods and Stacks provide superior venting for our scrubber systems, which are the premier choice for cleansing harmful industrial exhaust streams. When you utilize HEE-Duall products, you can be confident your emissions are cleansed effectively and efficiently.

HEE-Duall’s superior products can be custom-designed for systems to meet your unique situation, regardless of how large or small the job may be. Our system components are flexible and capable enough to handle almost any job. We can deliver the right equipment for your application, and we will assist you each step of the way. Our staff of experts are knowledgeable in all purification processes, and our customer support team gets a gold star for service. Choosing the right purification equipment for your company is a significant decision. But when you choose HEE-Duall, the choice is easy. Choose the most advanced, most reliable, and most carefully crafted equipment in the industry.

Download our brochure  
Request info  

FEATURES u0026 BENEFITS

  • Low Total Cost of Ownership
  • Longer product life with our premium quality resin and glass systems for corrosion resistance and fire-retardant exteriors
  • Material strength and integrity – our duct and fittings are manufactured utilizing filament wound and hand lay-up techniques

Wet Packed Bed Scrubber System, Vertical

Wet Packed Bed Scrubber System, Vertical

HEE-Duall

Scrubbers are used for gaseous and particulate control, by means of utilizing water, or other liquid, to remove pollutants from an exhaust stream.

The HEE-Duall brand Wet Packed Bed Scrubber System comes in two efficient and distinct designs: vertical and horizontal. Each of our design configurations provide a reliable and practical means of removing acidic and caustic mists and gases from corrosive exhaust streams.

With years of delivering high quality and reliable scrubbers, we can custom design our packages to fit your needs for specialty applications.

For almost half a century, the CECO HEE-Dualll brand has been a global leader in the design and supply of purification products. Our technology is at the forefront of the industry for managing hazardous and volatile exhaust compounds across a broad range of applications. Our diverse product line includes everything required for managing the clearing out of corrosive airstreams, gases, mists, and vapors. Our wet scrubbers excel at the removal of harmful elements from industrial exhaust streams that can destroy equipment and harm the environment. You can be confident that your emissions are cleaned effectively and efficiently when you purify with HEE-Duall.

Along with excellent products, our custom solutions can be designed to meet your project needs, no matter the size or scope. Our products can be configured to handle a large variety of jobs. Choose from our expansive line to determine the perfect equipment for your application; we will be with you from start to finish. Our knowledgeable team of expert engineers understands every aspect of purification processes; our customer support staff defines the industry standard. Selecting the optimal purification equipment for your company can be a daunting task. When you choose HEE-Duall, the choice is easy. Go with the most advanced, reliable, and carefully crafted equipment you can get. Choose HEE-Duall.

Download our brochure  
Request info  

FEATURES & BENEFITS

  • Capacities up to 100,000 CFM
  • Counter-current flow
  • Enhanced removal efficiencies
  • Easy access to sump for cleaning
  • Easy maintenance and user friendly
  • Low Total Cost of Ownership
  • Maximum efficiency and minimum pressure loss
  • Floorspace savings

Tubeaxial & Vaneaxial Exhaust Fans

Tubeaxial & Vaneaxial Exhaust Fans

HEE-Duall

Each of our HEE-Duall brand Tubeaxial and Vaneaxial Exhaust Fans are custom engineered to deliver maximum performance, efficiency and durability, even in the harshest applications. Ideal applications include roof ventilation and odor control facilities where conventional metal fans break down when exposed to the corrosive environment. We are a leading brand for corrosion resistant fans, which are manufactured from fiberglass reinforced plastic (FRP) materials and glass.

Our inline axial fans are designed for applications requiring large amounts of air volume at low to medium static pressures. From the plating shop to the semiconductor facility, tubeaxial and vaneaxial exhaust fans have proven extremely effective in moving air with less horsepower.

For nearly fifty years, the HEE-Duall brand has been a global leader in the fabrication and delivery of purification products. Our state-of-the-art technology is designed for the management of hazardous and volatile exhaust compounds found in industries worldwide. Our comprehensive product line includes every component needed to build a system for collection, handling, and control of corrosive airstreams, gases, mists, and vapors. Our Tubeaxial and Vaneaxial Exhaust Fans provide maximum performance under harsh conditions. When you rely on HEE-Duall, you can be certain that your emissions are cleansed effectively and efficiently.

Along with extraordinary crafting, HEE-Duall can provide systems that are custom-designed for your application, large or small. Our components are flexible and strong enough to take on almost any job. Choose the right equipment for your site from our diverse product line, and we will walk you through each step of the process. Our expert staff offers unequalled knowledge in all aspects of purification processes, and our customer service sets the gold standard in the industry. Making the right choice when it comes to purification equipment for your company is a big job, but when you choose HEE-Duall, we make it easy. Choose the most advanced, most reliable, and most carefully crafted equipment in the industry.

Download our brochure  
Request info  

FEATURES & BENEFITS

  • Capacities up to 80,000 CFM at static pressures to 4-inch WC
  • Available in sizes from 12 inch to 54-inch diameter
  • Fiberglass encapsulated steel inner tub
  • Sealed bearing and shaft center tub
  • Extended lube lines
  • Low Total Cost of Ownership
  • High value and low maintenance
  • Premium and quality materials preserve the value in your fans and minimize the total cost of operation
  • High reliability
  • Factory balanced to ASTM (American Society for Testing and Materials) specifications

Radial Exhaust Fans

Radial Exhaust Fans

HEE-Duall

A radial fan is ideal for use in applications where corrosion resistance and material handling (such as particulate in the airstream) are required. Each of our HEE-Duall brand Fiberglass Reinforced Plastic (FRP) Radial Exhaust Fans are designed to move low to medium quantities of air at high static pressures up to 20+ inches WC. Our self-cleaning wheel design allows materials in the airstream to be sloughed off as the wheel rotates, reducing the likelihood of buildup. With a wide performance range of 440 to 50,000 CFM, our radial fans are sure to meet your requirements.

For more than forty years, the HEE-Duall brand has been a worldwide leader in creating and providing purification products. We develop cutting-edge technology to manage hazardous and volatile exhaust compounds for a multitude of applications. Our all-inclusive line of components includes everything needed to collect, handle, and control corrosive vapors, airstreams, gases, and mists. Our Radial Exhaust Fans deliver maximum performance in the most rigorous conditions and environments. Purify with HEE-Duall, and you can be confident that your emissions are cleansed effectively and efficiently.

Along with superior products, HEE-Duall designs customized systems to meet your individual specifications, no matter the size or scope. HEE-Duall products are flexible and capable; they can handle the job. Choose from our complete line of components to find the system that works for you, and we will help you each step of the way. Our staff are experts in purification processes, and our customer service is the industry gold standard. Choosing the right purification equipment is an important decision. But when you work with HEE-Duall, the choice is easy. Choose the most advanced, most reliable, and most carefully crafted equipment in the industry.

Download our brochure  
Request info  

FEATURES & BENEFITS

  • Capacities from 440 to 50,000 CFM at static pressures to 20+ inch WC
  • Self-cleaning wheel design
  • Eight discharge positions
  • Standard arrangements 1, 8 (direct coupled) and 9 (belt driven) with others available
  • Low Total Cost of Ownership
  • High value and low maintenance
  • Premium and quality materials preserve the value in your fans and minimize the total cost of operation
  • High reliability
  • Factory balanced to ASTM (American Society for Testing and Materials) specifications

Quencher Scrubber

Quencher Scrubber

HEE-Duall

HEE-Duall designs and manufactures an innovative two-stage scrubber solution for applications involving corrosive air from hot processes and corrosive air contaminants from processes such as thermal or catalytic oxidizers – HCl, HF, SO2, Cl2, HB. We custom design each of our Quencher Scrubbers in accordance with your specific application. Our Model HQS Quencher Scrubber is a two-stage system consisting of:

  1. Quencher stage designed to cool the hot gases
  2. Scrubber stage to remove the corrosive gases and mists

For almost half a century, the HEE-Duall brand has led the industry in the design and supply of purification products. Our visionary technology can manage hazardous and volatile exhaust compounds for a wide range of situations. The diversity in our product line covers everything needed to deal with the collection, handling, and control of corrosive airstreams, gases, mists, and vapors. Our two-stage Quencher Scrubber excels at removing corrosive air and contaminants in industrial processes. When you depend on HEE-Duall for your purification needs, you can be confident that your emissions are cleansed effectively and efficiently.

In tandem with our superior craftsmanship, we create custom-designed solutions to match your specific needs, simple or complex. Our products are flexible and durable for managing an array of projects. Choose from our comprehensive line of products to find the components that fit your needs, and we will assist you through the entire process. Our expert staff offers extensive knowledge in every aspect of purification systems, and our customer service is the best in the market. Selecting the right purification equipment for your company can be challenging. But when you choose HEE-Duall, the choice is a cinch. Choose the most advanced, most reliable, and most carefully crafted equipment in the industry.

Download our brochure  
Request info  

FEATURES & BENEFITS

  • Capacity up to 120,000 CFM
  • Corrosion resistant construction
  • The Quencher stage of our system is constructed of a suitable metallic material.
  • The Scrubber stage is constructed of FRP material and is filled with a high efficiency packing material, mist eliminator and liquid distribution system.
  • Each Quencher scrubber system is equipped with a list of standard components, and we can include a list of popular options for a complete and simple to operate system
  • Low Total Cost of Ownership
  • High efficiency – Up to 99.9% removal efficiency of acid or toxic gases
  • Maximum reliability and value with corrosion and chemical resistance materials

Packed Bed Wet Scrubbers System

Packed Bed Wet Scrubbers System

HEE-Duall

Scrubbers are used for gaseous and particulate control, by means of utilizing water, or other liquid, to remove pollutants from an exhaust stream.

HEE-Duall brand pre-engineered and customized packed bed odor control scrubbers and systems are available to meet customer specific needs. Pre-engineered models include:

  • F Series horizontal “cross-flow” design and PT Series vertical “counter-current” design with capacities to >65,000 CFM
  • FW Series vertical scrubbers with integral fan and capacities to 17,500 CFM

We can design a customized system to meet even the strictest requirements. Major design criteria evaluated include:

  • Size of unit
  • Packings
  • Moisture extractor
  • Scrubbing liquid
  • Recycle rate
  • Material of constructions

HEE-Duall Packed Bed Scrubbers for Municipal and Industrial Odor Control

For almost five decades, the HEE-Duall brand has been recognized as a global leader in the configuration and fabrication of purification products. We create cutting-edge technology for the management of hazardous and volatile exhaust compounds for a wide range of industries. Our versatile line of merchandise includes everything needed for the collection, handling, and control of corrosive gases, mists, airstreams, and vapors. Our wet scrubbers excel at removing particulates that can be harmful to your equipment and surroundings from industrial exhaust streams. When you trust HEE-Duall products, you can be confident that your emissions are clean.

Along with excellent craftsmanship, HEE-Duall’s solutions can be custom-designed to meet your specific requirements, regardless of the size or scope. Our products are flexible and able to handle a wide variety of tasks. Choose from our expansive line to find the right equipment for your application, and we will stand beside you through every step of the process. Our expert team offers a thorough understanding of purification processes, and our customer service sets the standard for the industry. Choosing the right purification equipment for your company is not a simple decision. But when you choose HEE-Duall, the choice is easy. Choose the most advanced, most reliable, and most carefully crafted equipment in the industry.

Download our brochure  
Request info  

FEATURES & BENEFITS

  • Low Total Cost of Ownership
  • On demand chemical addition minimizes operating costs
  • Offers the greatest design flexibility
  • Economically treats large volumes of process air with infinite turndown ratio, accommodating virtually all choices of chemistry
  • High mass transfer rates achieved in a relatively small equipment footprint
  • High liquid recirculation rates guarantee sufficient chemical is always available to absorb odors
  • Counter-current flow maximizes the driving force for absorption
  • Cross flow (horizontal) scrubbers are available to meet low profile requirements
  • Utilizes non-plugging spray nozzles and packing media
  • No solid waste disposal

Packed Bed Spray Nozzle (Spray Nozzles for Wet Packed Bed Scrubbers)

Packed Bed Spray Nozzle (Spray Nozzles for Wet Packed Bed Scrubbers)

HEE-Duall

Choosing the Best Spray Nozzle

A properly designed Wet Scrubber removes a variety of air contaminants. Wet Packed Bed Scrubbers remove air contaminants and impurities by washing the airstream with a water liquid. Air contaminants are removed by the scrubbing liquid by impaction, reaction with a chemical solution or absorbed into the liquid. Air contaminants and the scrubbing liquid come into contact with other in the packed section of a wet scrubber filled with a high efficiency packing. Spray nozzles will spray small droplets and evenly introduce the scrubbing liquid above the packed bed section, which then flows down through the packing to the bottom of the scrubber sump. A mist eliminator section located above the spray nozzles removes liquid entrained in the cleaned exhaust airstream prior to entering the atmosphere.

Spray nozzles are selected at the lowest possible operating pressure to produce a uniform spray pattern with larger rather than smaller droplets. Any liquid particles that become airborne but do not wet the packing surface defeats the purpose of a scrubber. The function of the spray nozzle is to distribute liquid over the packing, not to test the operation of the mist eliminator. While the mist eliminator will capture the larger airborne droplets, agglomerate them and eventually drain back down to the packing, we do not want 80% of the liquid volume heading to the mist eliminator but instead onto the packing area. Selecting a spray nozzle with a larger particle size without creating a significant amount of smaller droplets than can become airborne and operating at lower operating pressure would be a better choice. In general, spiral spray nozzles should be avoided.

Download our brochure  
Request info  

FEATURES & BENEFITS

Several common spray nozzle types are candidates for use in a wet packed bed scrubber:

  • Spiral spray also nozzles (TF and TFXP), also called pigtail nozzles producing a round spray pattern
  • Full cone clog resistant nozzles (MP) giving medium to course droplet size
  • Full cone whirl nozzles (SC and NC) with course atomization, available in round and square spray patterns

Packed Bed Scrubbers for Municipal and Industrial Odor Control

Packed Bed Scrubbers for Municipal and Industrial Odor Control

HEE-Duall

Scrubbers are used for gaseous and particulate control, by means of utilizing water, or other liquid, to remove pollutants from an exhaust stream.

HEE-Duall brand pre-engineered and customized packed bed odor control scrubbers and systems are available to meet customer specific needs. Pre-engineered models include:

  • F Series horizontal “cross-flow” design and PT Series vertical “counter-current” design with capacities to >65,000 CFM
  • FW Series vertical scrubbers with integral fan and capacities to 17,500 CFM

We can design a customized system to meet even the strictest requirements. Major design criteria evaluated include:

  • Size of unit
  • Packings
  • Moisture extractor
  • Scrubbing liquid
  • Recycle rate
  • Material of constructions

For almost five decades, the HEE-Duall brand has been recognized as a global leader in the configuration and fabrication of purification products. We create cutting-edge technology for the management of hazardous and volatile exhaust compounds for a wide range of industries. Our versatile line of merchandise includes everything needed for the collection, handling, and control of corrosive gases, mists, airstreams, and vapors. Our wet scrubbers excel at removing particulates that can be harmful to your equipment and surroundings from industrial exhaust streams. When you trust HEE-Duall products, you can be confident that your emissions are clean.

Along with excellent craftsmanship, HEE-Duall’s solutions can be custom-designed to meet your specific requirements, regardless of the size or scope. Our products are flexible and able to handle a wide variety of tasks. Choose from our expansive line to find the right equipment for your application, and we will stand beside you through every step of the process. Our expert team offers a thorough understanding of purification processes, and our customer service sets the standard for the industry. Choosing the right purification equipment for your company is not a simple decision. But when you choose HEE-Duall, the choice is easy. Choose the most advanced, most reliable, and most carefully crafted equipment in the industry.

 

Download our brochure  
Request info  

FEATURES & BENEFITS

  • Low Total Cost of Ownership
  • On demand chemical addition minimizes operating costs
  • Offers the greatest design flexibility
  • Economically treats large volumes of process air with infinite turndown ratio, accommodating virtually all choices of chemistry
  • High mass transfer rates achieved in a relatively small equipment footprint
  • High liquid recirculation rates guarantee sufficient chemical is always available to absorb odors
  • Counter-current flow maximizes the driving force for absorption
  • Cross flow (horizontal) scrubbers are available to meet low profile requirements
  • Utilizes non-plugging spray nozzles and packing media
  • No solid waste disposal

NOx Control Wet Scrubbers

NOx Control Wet Scrubbers

HEE-Duall

The HEE-Duall brand corrosion-resistant BetaNox® Control Wet Scrubbers provide a unique, high-efficiency wet oxidation/reduction approach to controlling nitrogen oxide (NOx) emissions. Single and multiple stage systems provide more than 99% efficiency on total NOx removal and elimination of the red/brown NOx exhaust plume.

The CECO HEE-Duall brand has been a global leader in the purification product industry for more than four decades. We create breakthrough technology that manages hazardous and volatile exhaust compounds in a wide range of industries. Our extensive selection of merchandise covers every component needed to deal cleansing corrosive airstreams, gases, mists, and vapors from exhaust streams. Our wet scrubbers perform beyond expectations in removing harmful substances from industrial exhaust that can damage both equipment and the environment. When you purify with HEE-Duall, you can be confident that your emissions are effectively and efficiently cleansed.

Along with extraordinary craftsmanship, HEE-Duall also offers custom solutions to meet your specifications, regardless of the project. Our products are built to excel in a variety of applications. Choose from our all-inclusive product line to put together the equipment that is right for you; we will assist you each step of the way. Our expert staff understands every aspect of purification processes, and our customer support team provides superior service. Choosing the right purification equipment for your company can be stressful. But when you choose HEE-Duall, the decision is easy. Choose the most advanced, most reliable, and most carefully crafted equipment in the industry.

Download our brochure  
Request info  

FEATURES & BENEFITS

  • Professionally engineered stamped equipment designs
  • Low profile, space saving design
  • Low Total Cost of Ownership
  • More than 99% efficient on total NOx removal
  • Safe oxidation / reduction technology
  • Eliminates the red NOx plume
  • Minimal maintenance due to our homogenous thermoplastic construction for complete corrosion resistance

Mist Eliminator Model HPE

Mist Eliminator Model HPE

HEE-Duall

Mist Eliminators are designed to separate liquids from gas or vapor flow, effectively reducing condensate solids emission. Our HEE-Duall HPE Series Mist Eliminator operates utilizing direct compaction combined with centrifugal force to remove liquid entrainment from exhaust streams, thereby ensuring maximum performance and durability at minimal investment cost.

For nearly fifty years, the HEE-Duall has led the world in the fabrication of purification products. Our state-of-the-art technology is designed to manage dangerous and volatile exhaust compounds across a range of industries. Our diverse product line includes everything needed to handle the collection, management, and control of corrosive gases, airstreams, mists, and vapors. Our HPE Series Mist Eliminator excel at removing liquid contaminants from industrial exhaust streams, preventing damage to equipment and the environment. When you use HEE-Duall products, you can rest assured that your exhaust streams are effectively and efficiently cleaned.

Download our brochure  
Request info  

FEATURES & BENEFITS

  • 18 standard sizes and capacities to 40,000 ACFM
  • Patented profile mist eliminator blades
  • Easy maintenance and cleaning
  • High velocity design for a smaller footprint
  • Corrosion-resistant for long life
  • Removes 10-to-3-micron droplets with optional mesh pad
  • One piece construction for leak-free operation
  • Low Total Cost of Ownership
  • Optimal efficiency – Greater than 99% removal efficiency
  • Energy savings due to low pressure loss
  • High value and high reliability – Constructed of premium polyester resin to assure superior corrosion resistance for a wide variety of chemical applications
CECO Environmental

APPLICATIONS

With years of delivering quality systems with maximum efficiency, easy maintenance and high reliability, we can custom-design our packages to fit your needs for specialty applications:

  • Circuit board manufacturing
  • Chemical manufacturing and processing
  • Metal plating and finishing
  • Power plants
  • Battery manufacturing