lindab | we simplify construction Perforated diffuser PCS Technical data Capacity Volume flow q v [l/s] and [m 3 /h], total pressure Δ p t [Pa], throw l 0.2 [m] and sound power level L WA [dB(A)] can be seen in the diagrams. Frequency-related sound effect level The sound effect level in the frequency band is defined as L WA + K ok K ok values are given in charts beneath the diagrams on the following pages. Quick selection Supply air Size 125 160 200 250 315 Minimum P i =5 Pa l/s m 3 /h 20 73 34 122 53 190 79 286 121 437 p t =50 Pa L WA =30dB(A) l/s m 3 /h 30 106 48 173 65 235 109 393 - - p t =50 Pa L WA =35dB(A) l/s m 3 /h 36 131 59 212 81 292 135 484 188 675 Extract Size 125 160 200 250 315 Minimum P i =5Pa l/s m 3 /h 20 73 34 122 53 190 79 286 121 437 P t =50 Pa L WA = 30 dB(A) l/s m 3 /h 29 104 32 117 63 225 109 391 - - P t =50 Pa L WA = 35 dB(A) l/s m 3 /h 43 156 62 222 104 376 146 525 191 687 Throw l 0.2 The throw is specified at a terminal velocity of 0.2 m/s. l 0.2 [m] 6 5 PCS-2 4 125 160 200 250 315 3 2 1 30 40 50 60 70 80 100 150 200 300 400 150 500 200 700 l 0.2 [m] q V [l/s] 300 q V [m 3 /h] 1000 Sound attenuation Sound attenuation of the diffusers Δ L from duct to room, including end reflection, see table below. Size 125 160 200 250 315 Centre frequency Hz 63 125 250 500 1K 2K 4K 8K 21 16 6 19 14 12 11 17 15 11 9 21 15 12 13 16 12 8 6 15 15 9 11 14 19 15 12 17 12 9 11 14 16 13 11 14 12 9 12 13 Balancing Balancing data is contained in a separate brochure. 2 Lindab reserves the right to make changes without prior notice 2020-12-16
Download PDF file