lindab | air valves Exhaust valve KSU Technical data 1 Air flow, q [l/s] and [m3/h], total pressure drop, Δpt [Pa], and A-weighted sound power level, LWA [dB], for different 2 settings, a [mm], are shown in the graphs. Sound power level, LWok [dB], in octave bands 3 is calculated as LWA + Kok. Kok is found in the table below. 4 Ød Valve nom mounted in Centre frequency [Hz] 63 125 250 500 1K 2K 4K 8K 100 Duct -6 -6 -3 -3 -4 -9 -13 -27 5 125 Duct -7 -7 -6 -5 -8 -4 -12 -28 160 Duct -3 -3 -7 -5 -2 -12 -16 -29 200 Duct -5 -5 -7 -8 -2 -9 -13 -30 6 Tolerance ±3 ±2 ±2 ±2 ±2 ±2 ±2 ±3 7 Sound attenuation, ΔL, [dB] 8 Ød Valve nom mounted Centre frequency [Hz] in 63 125 250 500 1K 2K 4K 8K 100 Duct 23 18 14 12 12 14 5 6 9 125 Duct 21 17 12 11 12 11 7 6 160 Duct 19 14 12 11 11 14 5 7 10 200 Duct 15 13 11 11 13 12 7 7 Tolerance ±6 ±3 ±2 ±2 ±2 ±2 ±2 ±3 11 Measurement of air flow Data is available in a separate brochure. 12 13 14 15 16 Δ pt [Pa] xx Ø 100 -15 200 100 50 20 -12 -10 -5 0 a [mm] 5 10 40 35 30 LWA [dB(A)] 10 5 20 Ø 125 200 100 50 10 20 30 40 50 [l/s] 50 100 180 [m3/h] q a [mm] -10 -5 0 5 10 40 35 30 LWA [dB(A)] Δ pt [Pa] 20 10 5 20 Ø 160 200 100 50 10 20 30 40 50 80 [l/s] 50 100 200 [m3/h] q a [mm] -10 -5 0 5 10 15 40 35 30 LWA [dB(A)] Δ pt [Pa] 20 10 10 40 15 20 30 40 50 100 200 q 100 130 [l/s] 300 400 [m3/h] 17 18 40 We reserve the right to make changes without prior notice 2014-03-07
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