Performance Design Save & Print Air Volume (cFm): cu.m/h: Cross Section (cm x cm): X sqm: Operating Diameter (mm): POD: Free Area (sq/m): Real Velocity (m/sec): Ft/Mnt Length (m): Length (m): Depth (mm): Pressure Drop (Pa): Frequency (Hz) 63 125 250 500 1000 2000 4000 "A" Noise Reduction (dB) Frequency (Hz) 63 125 250 500 1000 2000 4000 "A" Source Noise Power Level (dB): Source Noise Power Level (dB): Source Noise Power Level (dB): Sound Pressure Level at m (dB) Sound Pressure Level (dB): Sound Pressure Level (dB): Silencer Noise Reduction (dB): Expected Noise Level at m (dB) Expected Noise Level(dB) "A" Weighting Filter (dB): -26 -16 -9 -3 0 +1 +1 "A" Weighted Noise Level (dB): Total expected Noise dB(A) Please type the title for this design Your email address Silencer Type: Choose Product EL.......... Extra Low Pressure Drop L........... Low Pressure Drop M........... Multi Purpose Silencer H........... High Performance SH.......... Super High Performance AL-33....... AL-33-S..... S Shaped Louver 33% AL-33-W..... W Shaped Louver 33% AL-50....... AL-50-S..... S Shaped Louver 50% AL-50-W..... W Shaped Louver 50% RDS-NP-1D... Short Round Silencer - No Pod RDS-NP-2D... Long Round Silencer - No Pod RDS-WP-1D... Short Round Silencer - With Pod RDS-WP-2D... Long Round Silencer - With Pod