Standard Construction
Sleeve/Frame: Integral 16" x 20" (406 x 1.0) galvanized steel with reinforcing beads.
Retaining Plates: Dual sided system suitable for round or square penetrations.
Blade: 14 ga. (2.0) equivalent galvanized steel - round.
Axles: 1/2" (13) diameter plated steel, D<8" (203), 3/4" (19), D≥8" (203).
Linkage: In the airstream.
Bearings: Bronze oilite, sleeve-type.
Seals: Silicone blade edge seal.
Actuator: 120 VAC, power-open, spring-close, external mount.
Fire Closure Device:
HS-10 (electric actuators)
PFV (pneumatic actuators)
Fire Closure Temperature: 165oF (75oC)
Minimum Size: 6" Ø" (152 Ø)
Maximum Size: 24" Ø (610 Ø)
Ratings
UL 555 Fire Resistance Rating: 1-1/2 hour (vertical and horizontal)
UL 555S Leakage Class: 1
Maximum Temperature: 350oF (177oC)