Flow meter lindab | dampers and measure units FMU Sound generation . Sound generation Velocity a pp. 5 [m/ s ] Ødidm 1 Centre frequency [Hz] 63 125 250 500 1k 2k 4k 8k Flow 25 [l/s] 80 49 45 42 33 22 14 11 11 Flow 40 [l/s] 100 50 45 39 30 18 6 2 7 Flow 60 [l/s] 125 45 40 33 24 11 1 1 8 Flow 100 [l/s] 160 41 39 31 24 13 0 0 3 Flow 150 [l/s] 200 41 36 32 23 7 0 0 4 Flow 250 [l/s] 250 44 37 31 22 17 15 17 17 Flow 400 [l/s] 315 51 35 29 19 14 10 5 6 Flow 600 [l/s] 400 46 37 30 22 19 14 9 7 Flow 1000 [l/s] 500 54 40 29 24 22 15 8 5 Flow 1500 [l/s] 630 53 43 32 28 25 19 14 10 Velocity a pp. 10 [m/ s ] Centre frequency [Hz] 63 125 250 500 1k 2k 4k 8k Flow 50 [l/s] 54 56 56 51 42 34 29 21 Flow 80 [l/s] 51 59 54 48 38 30 22 16 Flow 120 [l/s] 53 55 50 42 34 26 21 16 Flow 200 [l/s] 58 54 50 42 34 27 19 15 Flow 300 [l/s] 55 52 47 39 30 27 20 17 Flow 500 [l/s] 64 53 48 39 28 27 26 22 Flow 800 [l/s] 64 55 46 38 34 31 32 28 Flow 1200 [l/s] 64 58 47 41 40 40 37 30 Flow 2000 [l/s] 64 58 47 41 40 40 37 30 Flow 3000 [l/s] 68 61 50 44 43 45 42 35 Velocity a pp. 15 [m/ s ] Centre frequency [Hz] 63 125 250 500 1k 2k 4k 8k Flow 75 [l/s] 68 62 61 59 54 44 41 34 Flow 120 [l/s] 60 64 62 59 50 43 38 34 Flow 180 [l/s] 61 62 61 53 45 38 35 33 Flow 300 [l/s] 66 64 61 52 46 41 35 31 Flow 450 [l/s] 64 62 58 48 42 38 34 31 Flow 750 [l/s] 72 64 58 49 44 40 39 29 Flow 1200 [l/s] 72 65 57 48 45 42 42 41 Flow 1800 [l/s] 75 69 59 53 51 52 51 46 Flow 3000 [l/s] 75 69 59 53 51 52 51 46 Flow 4500 [l/s] 78 73 62 56 54 58 57 48 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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