High-Quality Butterfly Dampers
Kelair’s Butterfly dampers were developed in response to our customers’ desire for an economical industrial damper which could be used in most applications.
Appropriate for flow control and low leakage in systems that regulate clean air, gas or light particulate, Kelair’s Butterfly dampers can also be engineered to process highly corrosive, abrasive or high heat air flows.
These types of dampers can be a cost-effective means to control and isolate in air duct systems. Kelair’s Butterfly dampers are applicable for open-closed service or flow control balancing. Discover the variety of industrial-grade damper products available at Kelair.
*Operational testing and calibrating are completed at the factory prior to installation.
Product Specifications & Features
- Sizes: 6″ to 144″
- Process Temperature: up to 2200° F
- Configurations: round, square, & rectangular
- Construction: S.S. or painted C.S. (others available upon request)
- Shutoff: up to 99%
- Seal Options: tad pole, metal seat, swing-thru; control & balancing
- Actuation: manual, electric, pneumatic (spring return and failsafe available)
- Modulation: open/closed or modulating
- Pressure: up to 1-PSI & 4000 FPM process air (higher available upon request)
- Ball bearings and shaft packing glands standard up to 400°F
Other Dampers from Kelair Products
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.
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.
Kelair’s Refractory dampers are manufactured to withstand temperatures up to 1900 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.
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.