Air louvers 1900a 20x12 b fire rated metal door louver adjustable with fusible link mineral bronze finish.
Fusible link door louver.
The blades are operated by a manual adjusting lever.
Only for 1 3 4 fire rated doors.
Cold rolled steel frame 18 ga.
Adjustable z blade louver with fusible link is ideal for use in fire doors up to 1 1 2 hour rating.
Install the rockwood lv fl fusible link louver for 50 free air flow.
165 f 74 c fusible link.
Cold rolled steel adjustable z blades mitered corners secured with reinforcing clips stainless steel spring 165o fusible link free area 40 8 x 3 4.
Stainless steel operating springs assure proper action when the 165 f 74 c fusible link releases the closing mechanism.
Fire rated door louvers a spring loaded fusible link locks the blades closed if the temperature reaches 167 f.
Fire rated fusible link louver for 1 3 4 thick doors up to 90 minutes 10c blades close when activated by fire heat 18 ga.
These louvers have been tested and certified to maintain the fire resistance of the door assembly but smoke may pass through the louver before the link melts.
Cold rolled steel frame and louver blades.
The self attaching frame style is ideal for installation in existing door cutouts.
A spring loaded fusible link mechanism is incorporated into the design.
This louver is made of galvannealed steel fastens on one side to ensure security.
Air louvers 1900a 18x18 b fire rated door louver adjustable with fusible link mineral bronze finish.
Adjustable z blade louver with fusible link is ideal for use in fire doors up to 1 5 hour rating.
Adjustable blades of 16 gauge 059 crs pivot on cadmium plated steel riots.
Louvers meet ul 10c fire requirements.
Ideal for installation in existing door cutouts.
In some cases louvers are prohibited even when the door is not required to be fire rated.