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DIBD230 UL 555 3 hr. Dynamic, Curtain Type, 4,000 fpm and 4″ w.g. max, 12″ Integral Frame/Sleevee

The DIBD230 is a UL555 Classified Curtain Type Dynamic Fire Damper. It features:

  • An integral sleeve that ensures appropriate sleeve installation and allows delivery direct to the job site.
  • 3-Hour Rating
  • Vertical and horizontal closure spring operation for assured closure under airflow (fans on) in HVAC systems.
  • Galvanized steel construction.
  • Maximum velocity 4,000 fpm.
  • Maximum 4” static pressure.

Description
APPLICATION

DIBD20, 40, 60 fire dampers can be installed vertically in walls or horizontally in floors with fire resistance ratings of less than 3 hours. The DIBD20, 40, 60 carry an 11/2 hour UL fire damper label and are classified as a dynamic damper for use in HVAC systems that remain in operation during a fire.

DIBD230, 430, 630 can be installed vertically in walls or horizontally in floors with fire resistance ratings of 3 hours or more. The DIBD230, 430, 630 carry a 3 hour UL fire damper label and are classified as a dynamic damper for use in HVAC systems that remain in operation during a fire.

OPTIONS
  • FM Approvals as Specification Tested Product.
  • Switch Package to remotely indicate a damper blade position.
  • FAST Angle for one side angle installation
  • DIBD10 for easy all from one side installation.
  • G Style for grille applications.
  • FireStop Caulk Installation.
NOTE:
  • Dimensions shown in parentheses ( ) indicate millimeters.
  • Damper Sleeves ma need to be sealed in the field to pass local duct leakage requirements
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