EFM, a leading global provider of damper and expansion joint engineering, technology and turnkey services, brings more than 50 years of proven experience. From custom engineering and manufacturing in the U.S. through to turnkey installation supervision, rigorous testing, start up and commissioning, EFM is the provider of choice in a range of mission-critical applications around the world. 
Customers trust the EFM team to ensure dampers and expansion joints are custom designed to meet the requirements of each project. This means long service life, high performance and safety in high-temperatures, extreme forces and other severe demanding conditions. 
Customers trust the EFM team to ensure dampers and expansion joints are custom designed to meet the requirements of each project. This means long service life, high performance and safety in high-temperatures, extreme forces and other severe demanding conditions. 
We help customers maintain efficient operations and meet their environmental goals and regulatory commitments—limiting greenhouse gas emissions and other potentially dangerous pollutants. 
Dampers include: Butterfly wafer dampers, diverter or stack isolation dampers, guillotine and slide gate dampers, louver dampers, metal seat RTO dampers, poppet dampers and radial or inlet vane dampers.
We provide parts and services including complimentary consultations, project management, and onsite services that include installation, start up, testing onsite, start up and commissioning.

Effox Flextor Mader (EFM)

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