Large fire dampers
These UL Listed, non-actuated, dynamic fire dampers come in four models and are available to protect oversized openings in buildings.
These UL Listed, non-actuated, dynamic fire dampers come in four models. Four dynamic fire damper models are available to protect oversized openings in buildings. Featuring a fabricated steel 3V blade type, Model DFD-210 has a maximum size of 128×100 in. with a 1.5-hour fire resistance rating; Model DFD-230 has a maximum size of 72×48 in. with a 3-hour fire resistance rating. Featuring fabricated steel airfoil blades, Model DFDAF-310 has a maximum size of 128x 100 in. with a 1.5-hour fire resistance rating; Model DFDAF-330 has a maximum size of 120×96 in. with a 3-hour fire resistance rating.
Greenheck
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