Twin-Blade Louver Damper


  • 100 % isolation with seal air, providing "man-safe" sealing



  • Twin-blade louver dampers have been developed for the demanding conditions in FGD plants as a superior alternative to double louver dampers
  • Process industries, gas turbines, coal fired and environmental applications



  • Reduced flange to flange size
  • Reduced weight
  • Floating blade design eliminates thermal distortion
  • Upstream and downstream blades may be supplied in different materials
  • Suitable for cladding with alloy stainless steels
  • Low pressure drop
  • Insulated blade design available



Size: up to 100 m²
Temperature: up to 670 °C
Pressure: up to 100 mbar
Materials: carbon steels, stainless steels
Actuation: manual, electric, pneumatic or hydraulic
Insulation: internal, external