Galvanized steel volume dampers for SHN, SHVN, AHN, AHVN, ALG, SPN-V, SPN-VH, SDN-V and SDN-VH grilles
Brand
Cairox
Mounting
The damper can be fixed to the grille by screws or directly on the clips of the grille
The adjustment of the airflow can be set by a screwdriver trough the front of the grille (see drawing)
Other available products
For floor grilles ALG-F-0, ALG-F-15, ALG-TF-0 and ALG-TF-15 a damper is available upon request
Selection graph
Symbols and specifications
The graph presents the sound level in dB(A) as the sound power level without room attenuation for the combination of grille and damper DWN. The value of Vk on the graph is that for the grille without damper.
Ps = Pressure loss in Pa
Vk = Effective velocity of the corresponding grille (see selection tables SH(V)N, AH(V)N, ALG, SPN-V, SPN-VH, SDN-V and SDN-VH)