Refractory Dampers
Kelair’s refractory dampers are manufactured to withstand temperatures up to 2100 F.
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High quality refractory dampers from Kelair are fabricated to withstand high temperatures
Most Kelair Damper products can be made as a refractory. These high-temperature dampers fit into a wide range of industrial combustion processes, including in the waste incineration and oil refining industries. Almost any industrial damper manufactured by Kelair can be produced as a refractory damper able to withstand temperatures up to 2100 degrees F. This added level of customization allows us to provide the widest range of damper solutions possible to our customers.
All of Kelair industrial dampers are engineered to order – adding the high-temperature refractory component is fast and easy. Call us today for a refractory diverter, refractory louver, butterfly refractory or another of our products to fit your needs. We are here to process your quote or order as simply as possible.
Types of High-Temperature Dampers and Their Functions
Kelair designs a full range of refractory dampers for different system needs:
- Butterfly Dampers & Round Butterfly Dampers: Compact, cost-effective solutions for shutoff or modulating control in high-temperature ducts.
- Louver Dampers: Ideal for airflow regulation in large duct runs, offering low pressure drop and reliable throttling.
- Diverter & Tee Dampers: Redirect or split airflow between duct legs; refractory-lined to handle corrosive flue gases.
- Guillotine Dampers: Heavy-duty isolation dampers designed for complete shutoff, even in extreme temperature zones.
- Backdraft Dampers & Stack Caps: Prevent reverse flow and protect stacks from heat loss and debris intrusion.
- Inlet Vane Dampers & Volume Control Dampers: Regulate fan capacity and energy use with precise airflow control.
All designs can be enhanced for high-temperature service with refractory lining, ensuring heat and erosion resistance across a wide range of industrial applications.
Butterfly Dampers
Butterfly dampers used by Kelair have the simplest design and the fastest turnaround. They are the economical choice for applications ranging from light duty to heavy duty and low temperature to high temperature.
Industrial Ducting
Kelair's custom-designed industrial ductwork is used in various applications, including pneumatic conveying, air pollution control, and industrial ventilation systems.
Isolation Valves
Isolation valves are typically placed at specific points throughout a pipeline or system. Among the most common spots for isolation valves to be installed include places where pipes branch off in multiple directions or at junctions.
Butterfly Valves
Louver Dampers
Kelair's Louver Dampers are applicable for both light, and heavy-duty industrial ventilation for high volume flow control, and isolation applications. This damper modulates the flow of air and gas in dry or wet conditions or can shut them off altogether.
Slide Gate / Guillotine Dampers
These types of slide gate or guillotine dampers are used primarily as shut off devices. Kelair's rugged, heavy duty designs are available round or square with sizes from 4" up to 96" making them an ideal solution for industrial applications.
Diverter & Tee Dampers
Diverter Dampers or Tee Dampers are used to redirect air stream from one outlet to another. These types of dampers are widely used in incineration systems to divert process air and gas to the incinerator or by-pass to the atmosphere.
Refractory Dampers
Kelair’s Refractory dampers are manufactured to withstand temperatures up to 2100 F in corrosive, particulate and/or process gas environments. This unique design helps reduce heat loss and provide erosion protection for the frame.
Inlet Vane Dampers
Inlet Vane Dampers work with fans and blowers to enhance their performance by controlling air volume and fan shut-off. Kelair’s design boasts no external linkage, eliminating pinch points and damage to the assembly.
Backdraft Dampers
Kelair’s Backdraft dampers are engineered to allow airflow in one direction and prevent reverse airflow. Backdraft dampers control airflow in ventilation systems either to modulate or to shut off moving air through a fan opening when it is turned off.
Stack Cap Dampers
Kelair's Stack Cap Dampers isolate the stack opening to prevent foreign material from entering and conserve warmth when the stack is shut down. The dampers deliver accurate airflow and isolation at high temperatures, reducing the stack effect.
Applications & Industries Using High-Temperature Dampers
Refractory dampers are essential to facilities that operate at extreme heat or require high-efficiency exhaust and combustion control. Common industries include:
- Power generation
- Petrochemical and refining
- Cement and aggregate production
- Pulp and paper
- Biomass energy systems
- Waste incineration and pollution control
- Glass and metals processing
- Mining and smelting
These dampers protect downstream equipment, improve thermal efficiency, and help plants meet emissions and safety standards. Their role in industrial ventilation, flue-gas management, and combustion isolation is critical to reliable system performance.
Custom Engineering & Configuration Options with Kelair
Each Kelair refractory damper is engineered to order. Our team collaborates with plant engineers to configure solutions based on:
- Temperature rating, pressure, and gas composition
- Damper geometry: round, square, or rectangular (4″ to 96″+)
- Actuation options: manual, pneumatic, or electric, including fail-safe and smoke/fire damper options
- Mounting compatibility: custom flange patterns for seamless installation
This high level of customization ensures precise performance and reduces costly retrofitting or modifications during commissioning.
- Which damper should I choose for high-temperature isolation?
- What about pressure drop?
- Can Kelair retrofit existing systems?
- How can I extend damper life?
