Combination Fire/Smoke Damper - 3 Hour - Triple-V Blade - Class 2 - FSD-342

Standard Construction

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

Blades: 6" x 16 ga. (152 x 1.6) galvanized steel - triple-V.

Sleeve: 16" x 20 ga. (406 x 1.0) galvanized steel.

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

Linkage: Concealed in frame.

Bearings: Stainless steel oilite, sleeve-type.

Seals: Silicone blade edge seals and flexible metal jamb seals.

Actuator: 120 VAC, power-open, spring-close, external mount.

Fire Closure Device:
HS-10 (electric actuators)
PFV (pneumatic actuators)

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

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

Maximum Size:
Single Section: 36" x 48" (914 x 1219)
Multiple Section: 108" x 96" (2743 x 2438)
Stainless Steel: 36" x 48" (914 x 1219)

Ratings

UL 555 Fire Resistance Rating: 3 hour (vertical)

UL 555S Leakage Class: 2

UL HNLJ.V-5: Ventilation Duct Assemblies

Maximum Temperature: 350^oF (177^oC)