Air Louvers 1900ASG Fire-Rated Door Louvers provide controlled airflow while adding a welded security grille for protection in high-abuse or security-sensitive commercial environments. Operable Z-blades allow ventilation under normal conditions and automatically close when the fusible link activates during elevated temperatures. Heavy-duty steel construction and tamper-resistant installation make this model suitable for commercial, institutional, detention, and industrial applications requiring both ventilation and fire-rated performance.

Specifications
Application: Commercial wood doors, commercial steel doors, and composite fire doors
Door thickness: 1-3/4″
Frame material: 18 gauge cold rolled steel
Blade material: 16 gauge cold rolled steel
Security grille: 12 gauge steel with 13/16″ square openings
Blade spacing: 1″
Operation: Manual blade adjustment with automatic closure
Fusible link temperature: 165°F
Standard finish: Mineral bronze powder coat
Fasteners: #8 x 3/4″ and #8 x 1/2″ Phillips flathead screws
Minimum size: 10″ x 6″
Maximum size: 24″ x 24″
Door cutout: Order size (W x H)
Free area: 35%
Fire ratings: Up to 90 minutes
UL listings: ANSI/UL 10B, ANSI/UL 10C, CAN/ULC S104
Optional materials: Zinc plated steel
Optional finishes: Custom powder coat colors
Optional screens: Aluminum, bronze, fiberglass, stainless steel insect screens
Optional bird screen: 1/4″ x 1/4″ galvanized steel

Downloads
Louver-1900A-Submittal.pdf