Type: Rolling Steel Fire Shutter to be manufactured by Asta Door Corporation. Rated 3/4 hr, 1-1/2hr and 3hrs.
Operation: Manual push-up operation standard through ten feet wide. Awning crank available for all sizes.
Mounting: To be interior face mounted on a prepared opening.
– Opening preparation, access panels, finish or field painting are in the scope of the work of other sections or trades.
Curtain: Interlocking curtain slats roll-formed from 22 gauge galvanized steel. Lateral slat movement and curtain wear controlled by galvanized malleable cast endlocks fastened to every other slat. Flat slats, (FS) cover 1-1/2″ high by 1/2″ deep.
Bottom Bar: Fabricated from hot-dipped galvanized steel or (optional) stainless steel angle bolted to curtain.
Barrel: Fabricated from minimum 4-1/2″ O.D. pipe. Deflection under full load not to exceed 0.03″ per foot of span. Barrel provided with threaded rings or lugs welded to the barrel assembly for curtain attachment.
Springs: Spring tension end of the barrel assembly fabricated with self-aligning ball bearing assembly. Curtain weight with self-aligning ball bearing assembly. Curtain weight counterbalanced by oil-tempered, helically wound torsion springs, greased packed and mounted on steel torsion shaft.
Head Plates: Head plates for mounting curtain, hood and barrel assemblies fabricated from minimum 1/4″ steel plate. Drive side of barrel to be provided with precision sealed ball bearing in cast iron housing.
Drive: Manual push-up operation standard through ten feet wide. Awning crank available for all sizes.
Releases: 165-degree fusible links provided (standard). Fail-safe time delay releases, smoke detectors, audible and visual warning devises (option). Closing speed regulated by viscous governor. Closing speed to be between 6″ to 24″ per second per NFPA 80.
Contact American Overhead Door to install or answer any question about Asta Door Corporation products at (256) 772-5775.