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Smoke Damper

KSD-333 · SKU: KSD-333-SMOKE-DAMPER In Stock

The KSD-333 is a UL555S Classified ultra-low leakage smoke damper designed for dynamic smoke management systems and applications requiring reliable smoke control. It is suitable for both vertical and horizontal installation, with airflow in either direction.The damper is engineered to operate under dynamic conditions with a maximum static pressure of 4 in. W.G. (1000 Pa), maximum airflow velocity of 4000 FPM (20.3 m/s), and operating temperature up to 350°F (177°C).

Brand
kbe
Min Order Qty
1
Material
Galvanized steel
kbe
kbe
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Technical Specifications

Model KSD-333
Product Type Smoke Damper
Classification UL555S
Application Dynamic Smoke Management
Leakage Rating Ultra-Low Leakage
Mounting Orientation Vertical and Horizontal
Airflow Direction Both Directions
Maximum Static Pressure 4 in. W.G. (1000 Pa)
Maximum Air Velocity 4000 FPM (20.3 m/s)
Maximum Operating Temperature 350°F (177°C)
Frame Material Galvanized Steel
Frame Thickness 16 Gauge (1.6 mm)
Blade Material Galvanized Steel
Blade Thickness 16 Gauge (1.6 mm)
Blade Design Three-V Formed
Bearing Type Oil-Impregnated Sintered Bronze
Axle Material Zinc-Plated Steel
Axle Size 1/2 inch (12.7 mm)
Linkage Material Zinc-Plated Steel
Jamb Seals 300 Series Stainless Steel
Blade Seals Silicone
Blade Seal Temperature Rating 450°F (232°C)
Standard Finish Mill Galvanized
Sleeve Shape Rectangular
Actuator Type Electric Spring Return or Pneumatic
Actuator Voltage 24V, 120V or 230V
Minimum Size 8 x 8 inches (203 x 203 mm)
Maximum Size 36 x 36 inches (914 x 914 mm)
Standards NFPA 90A, NFPA 92A/B
Optional Bearings Stainless Steel
Optional Construction Stainless Steel
Optional Sleeve Shapes Round, Oval and Special
Actuator Mounting Internal or External

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