Blade Type - Arrow

True Round Straight

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RA

Class I True Round Combination Fire-Smoke Damper

RA250, RA350

Maximum Velocity (FPM): 3000 fpm

Material Options: Galvanized Steel
Blade Type: True Round Straight
Frame Shape: Round
Pressure Drop: .015 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 3000 fpm (FPM)
Fire Resistance Rating (hrs): 1.5 hrs.
Temperature Rating (°F): 250 °F to 350 °F

RU

Class I True Round Smoke Damper

RU250, RU350

Maximum Velocity (FPM): 3000 fpm

Material Options: Galvanized Steel
Blade Type: True Round Straight
Frame Shape: Round
Pressure Drop: .02 in. w.g. @ 1000 fpm
Maximum Velocity (FPM): 3000 fpm (FPM)
Temperature Rating (°F): 250 °F to 350 °F