Fire Dampers: Greenheck
Greenheck has expanded its collection non-actuated fire dampers in the marketplace. Now available in widths as great as 144 in and heights up to 100 in, the company says the Model DFDAF-310 represents a 20% dimensional increase over dampers previously available for a 1.5-hour dynamically-rated fire damper with airfoil blade construction.
The electronically actuated 1.5-hour fire resistance rated airfoil blade combination fire-smoke damper product line has also grown. Models FSD-311 and FSD-312 have increased available sizes in their product classes by 20%, now offering widths as great as 144 in and heights up to 100 in.