An ideal option for round ductwork where low leakage isolation, flow control, or both is required. Single and multi-blade designs.

ButterFly Dampers provide low-cost isolation and flow control of flue gases.

  • Process Temperature: up to 1900˚F
  • Configurations: round, square, & rectangular
  • Construction: stainless steel or carbon steel (other materials available upon request)
  • Shutoff: up to 99%
  • Seal Options: tadpole, metal seat, swing-thru
  • Actuation: manual, electric, & pneumatic (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. Self-lubricated, sleeve bearings available upon request.
  • High temperature carbon sleeve bearings standard over 400˚F
butterfly wafer metal industrial damper