Fire Damper - 1-1/2 Hour - Out of Partition - Airfoil-Blade - FD-150-OP

Standard Construction

Frame: 5" x 1" (127 x 25) galvanized steel hat channel with interlocking corner gusset. Equivalent to 13 gauge (2.4) channel frame. Low profile head and sill used on sizes less than 13" (330) high.

Blades: 6" x 14 ga. (152 x 2.0) galvanized steel - airfoil.

Sleeve: 14" x 20 ga. (406 x 1.0) galvanized steel with 1" (25) flange and factory installed thermal insulation on four sides.

Axles: 1/2" (13) diameter plated steel hex.

Linkage: Concealed in frame.

Bearings: Stainless steel oilite, sleeve-type.

Seals: Silicone blade edge seals integrally rolled and mechanically fastened to blades. Flexible metal jamb seals.

Fire Closure Device: Fusible link.

Fire Closure Temperature: 165^oF (75^oC).

Minimum Size: 8" x 6" (203 x 152)

Maximum Size:
32" x 36" (613 x 914) Max Single
36" x 36" (914 x 914) Max Multiple

Ratings

UL 555 Fire Resistance Rating: 1-1/2 hour (vertical and horizontal)

Maximum Dynamic Closure Rating: 4,000 fpm (20.3 m/s)

Maximum UL555S Rated Pressure:
6 in. wg. (1.5 kPa)
4in. wg. (1.0 kPa) below 8" in height