" " Butterfly Dampers - Wafer Dampers - Effox-Flextor - CECO Environmental


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Butterfly Dampers / Wafer Dampers

Butterfly Dampers/Wafer Dampers are typically used for moderated flow control when precision is not critical. Our Effox-Flextor brand Butterfly Dampers are uniquely designed with heavy-duty blades and housing, to provide maximum resistance to heat stresses, corrosion, metal fatigue and distortion. With decades of experience, we are able to deliver custom tailored solutions, configured to your specific size and application requirements.

Each damper is engineered to fit your needs, ensuring maximum reliability and durability during harsh and abrasive environment conditions, with features that include drive options such as electric, pneumatic or hydraulic, multiple seal options, and quality construction materials for long service life.



  • Low Total Cost of Ownership
  • Premium quality construction materials for severe environment conditions and a long service life



  • Sizes range from 2” to 120”+ diameters
  • Seal options include tadpole seal, bar stop and elastomeric seals
  • Electric, pneumatic, or hydraulic actuation with fail safe configurations
  • Optional blade designs include simple blades, structural blades, thermally compensating blades and profiled blades
  • Applications where heat retention is necessary, blades can be insulated
  • Internal refractory/ceramic wool linings available for high temperature applications


Butterfly Wafer Dampers from Effox-Flextor

With industry experience that stretches over 50 years, the Effox-Flextor brand has become a world leader in developing and manufacturing first-class, flexible fuel combustion and exhaust equipment. It is crucial that any equipment that deals with the severe temperatures and extreme forces involved in solid fuel combustion is dependable, strong, and, safe. Facilities across the globe use Effox-Flextor Butterfly Wafer Dampers and expansion joints to limit greenhouse gas emissions and other potentially dangerous pollutants. We are proud to make this contribution to clean air.

The commitment we have to protect the environment is matched only by our commitment to build quality equipment for your business. You can trust a brand that is as dedicated as you are to controlling emissions. From conception to execution, we design and build products unequaled in reliability and quality necessary to comply with the most intense regulations. For custom designed emission systems, our engineers are ready to help. We have the finest staff ready to assemble the perfect system for your facility. When you choose Effox-Flextor, you are choosing a product for life