ELBD375E Automatic Exhaust Dual Combination Aluminum Louver

The ELBD375E Automatic Exhaust Dual Combination aluminum louver combines a drainable blade louver and an exhaust backdraft damper in a nominal 6” frame depth. Louver blades are .081” thick extruded aluminum at approximately 4” c-c spacing. Backdraft blades are .025” thick formed aluminum with concealed blade linkage, synthetic bearings and non-metallic blade seals. It features:

Approximately 45% Free Area
All aluminum construction for low maintenance and high resistance to corrosion
Operable blades that begin to open at approximately .03” w.g. pressure and are fully open at approximately .10” w.g. pressure
Maximum recommended exhaust free area velocity through louver: 1,500 fpm (457 m/min)