UL 555S Class I, Galvanized, Airfoil
Blade, 4,000 fpm and 8" w.g. max.
Product Features:
The SD60 is a UL555S Classified Leakage Class I smoke damper. It features:
UL555S Class I.
Maximum velocity of 4,000 fpm.
Maximum 8" static pressure.
With factory furnished actuator, provides fail-safe operation (the damper
automatically goes to the desired fail-safe position when fire interrupts
power.)
Available with factory furnished sleeves.
Airfoil blades, which have greater strength, less static pressure, superior
sealing, superior fire protection, and produce less noise.