Exhaust valve lindab | air valves KSU Technical data Air flow, q [l/s] and [m 3 /h], total pressure drop, Δ p t [Pa], and A-weighted sound power level, L WA [dB], for different settings, a [mm], are shown in the graphs. Sound power level, L Wok [dB], in octave bands is calculated as L WA + K ok . K ok is found in the table below. Ød Valve Centre frequency nom mounted in [Hz] 63 125 250 500 1K 2K 4K 8K 100 Duct -6 -6 -3 -3 -4 -9 -13 -27 125 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 Tolerance ±3 ±2 ±2 ±2 ±2 ±2 ±2 ±3 Sound attenuation, Δ L, [dB] Ød Valve Centre frequency nom mounted [Hz] in 63 125 250 500 1K 2K 4K 8K 100 Duct 23 18 14 12 12 14 5 6 125 Duct 21 17 12 11 12 11 7 6 160 Duct 19 14 12 11 11 14 5 7 200 Duct 15 13 11 11 13 12 7 7 Tolerance ±6 ±3 ±2 ±2 ±2 ±2 ±2 ±3 Measurement of air flow Data is available in a separate brochure. Δ p t [Pa] xx Ø 100 -15 200 100 50 20 -12 -10 -5 0 a [mm] 5 10 40 35 30 L WA [dB(A)] 10 5 20 Ø 125 200 100 50 10 20 30 40 50 [l/s] 50 100 180 [m 3 /h] q a [mm] -10 -5 0 5 10 40 35 30 L WA [dB(A)] Δ p t [Pa] 20 10 5 20 Ø 160 200 100 50 10 20 30 40 50 80 [l/s] 50 100 200 [m 3 /h] q a [mm] -10 -5 0 5 10 15 40 35 30 L WA [dB(A)] Δ p t [Pa] 20 10 10 40 15 20 30 40 50 100 200 q 100 130 [l/s] 300 400 [m 3 /h] We reserve the right to make changes without prior notice 39 2014-03-07
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