Rectangular Commercial Control Dampers - SEVCD-33

The SEVCD-33 is a low leakage airfoil blade control damper with 316 stainless steel construction. The applications are in medium to high pressure and velocity systems. Pressure: Up to 8 in. wg (2 kPa) Leakage: Class 1A @ 1in. wg (0.25 kPa); Class 1 @ 4-8 in. wg (1 - 2 kPa) Velocity: Up to 4000 fpm (20.3 m/s) Temperature: Up to 250°F (121°C) Blade and Jamb Seal