Arrow Logo


Class I Single Thickness Blade Mini Smoke Damper
Horizontal or Vertical Mount, 250°F/350°F Rated, 2000 FPM Max Air Velocity, 4 in. w.g. Max Static Pressure

Quick Specs - Smoke Dampers

Specifier Name(s)UR1H250, UR1H350, UR1V250, UR1V350
Material OptionsGalvanized Steel
UL Leakage RatingUL Leakage Rating: Class I UL Leakage Rating: Class I
Temperature Rating (°F)250 °F to 350 °F
Blade TypeSingle Thickness Blade
Maximum Velocity (FPM)2000 fpm
Pressure Drop.03 in. w.g. @ 1000 fpm
Panel Maximum Size(s)W: 24"x H: 24", (Rectangular)
Diameter: 22", (Round)
W: 22"x H: 22", (Oval)
Assembly Maximum Size(s)Only available as single panel

Detailed Specs

*For additional options/configurations see spec sheet or contact the factory.
*This info listed here is For Reference ONLY, Please Refer to the Submittal For Full Product Data

Product Submittal

Product Submittal
View / Download

Options & Product Literature

Quick Links

Other UR1 Literature

Are you looking for a

Sales Representative?

Find your local sales office right now!