lindab | dampers and measure units Damper with flow meter FMDU Pressure drop graphs with sound data for dimensioning Ø125 L WA [dB] 80 60 The solid lines show the pressure drop, Δ p t , across the unit 500 as a function of flow, q. The dashed lines give the A-weighted sound power data, L WA , in dB to the duct. Flow data for bal- ancing differ from these graphs. 100 Δ p t [Pa] 50 70 60 50 40 a [°] 40 20 0 Δ p t [Pa] Ø80 L WA [dB] 80 60 500 50 40 100 50 60 70 40 a [°] 20 0 80 10 30 50 200 100 300 400 500 q 200[l/s] [m 3 /h] Ø160 L WA [dB] 80 500 60 60 Δ p t [Pa] 50 100 40 50 α [°] 40 70 20 0 10 10 50 20 30 40 50 100 200 q 80 [l/s] [m 3 /h] Ø100 L WA [dB] 80 60 500 60 50 40 Δ p t [Pa] 100 50 70 a [°] 40 20 0 10 60 100 300 400 500 q 200 300[l/s] 1000 [m 3 /h] Δ p t [Pa] Ø200 L WA [dB] 500 80 60 50 100 50 40 α [°] 60 40 70 20 0 10 20 100 50 200 q 100 120[l/s] 300 400 [m 3 /h] 10 90100 400 500 200 300 400 500[l/s] 1000 q [m 3 /h] DUCT-MC Identification number 17.11.002 Lindab reserves the right to make changes without prior notice 3 2020-09-10
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