Rectangular straight attenuator Smoke single compartment Dimensions ½ 200 Ss lindab | fire & smoke SLRSS2 b l Flow a Description Rectangular straight attenuator from the Aerodim™ series. SLRSS2 is built with the Aerodim™ attenuator splitter SLRA. The SLRA is manufactured with a frame of galva- nized sheet and absorption material type Lindtec™. The splitter is available in a width of 200 mm. Attenuator is equipped with flange profile RJFP. Due to the aerodynamic design, the SLRSS2 has a low pres-sure loss and a low generation of flow noise. To calcu- late the attenuator, you can use our IT-online tool LindQST or DIMsilencer, where width, height, length and splitter distance can be optimized for the best performance. On LindQST or DIMsilencer, this product is called SLRS. Tested according to ISO 7235 standard. SLRSS2 is tested with the whole Lindab smoke evacuation system according to EN 1366-9. CE-Certified according to EN 12101-7 Special materials and sizes, please contact Lindab sales. Order code Product SLRSS2 200 S* a b l c SLRSS2 Splitter width in mm 200 mm Splitter distance (S), in mm Calculate* Width (a) in mm Min. - Max. 400 - 1900 mm Height (b) in mm Min. - Max. 200 - 1700 mm Length (l) l nom i mm Min. - Max. 500 - 1500 mm Splitter type 1 = With perforated plate 2 = Without perforated plate Example: SLRSS2 - 200 - 100 - 1250 - 900 - 1500 - 1 * See how to calculate (S) from a given (a) in the seperate AeroDim-SLRA-SLRSS2 installations instruction page 4. Technical data examples Splitter distance S = 60 Length l nom [mm] Insertion loss [dB] for centre frequency [Hz] 63 125 250 500 1k 2k 4k 8k 750 1000 1250 1500 4 9 18 26 35 32 22 16 5 11 23 34 48 43 28 20 6 14 29 43 50 50 34 24 7 16 34 50 50 50 39 27 Pressure value x 8,9 10,2 11,5 12,9 Splitter distance S = 80 Length l nom [mm] Insertion loss [dB] for centre frequency [Hz] 63 125 250 500 1k 2k 4k 8k 750 1000 1250 1500 3 7 15 23 30 27 18 14 4 9 20 30 42 36 23 17 5 12 25 37 50 44 28 20 5 14 29 44 50 50 32 22 Pressure value x 4,9 5,6 6,2 6,9 Splitter distance S = 100 Length l nom [mm] Insertion loss [dB] for centre frequency [Hz] 63 125 250 500 1k 2k 4k 8k 750 1000 1250 1500 3 6 13 50 26 22 15 11 3 8 18 27 37 29 19 14 4 10 22 33 47 37 23 16 5 12 26 40 50 44 27 18 Pressure value x 2,8 3,2 3,6 4,0 Splitter distance S = 120 Length l nom [mm] Insertion loss [dB] for centre frequency [Hz] 63 125 250 500 1k 2k 4k 8k 750 1000 1250 1500 2 6 12 19 23 18 12 9 3 7 16 25 32 24 16 11 3 9 20 30 41 30 19 13 4 11 23 36 50 36 22 15 Pressure value x 1,8 2,0 2,3 2,5 Splitter distance S = 140 Length l nom [mm] Insertion loss [dB] for centre frequency [Hz] 63 125 250 500 1k 2k 4k 8k 750 1000 1250 1500 2 5 11 17 20 15 10 8 3 7 15 23 28 20 13 9 3 8 18 28 36 25 16 11 4 10 22 34 44 30 18 12 Pressure value x 1,1 1,3 1,5 1,7 NB. Max. attenuation specified is 50 dB. The pressure loss Δ p in Pa can be calculated from the pressure value ξ : Δ p = 0,6 × v2 × ξ , where (v) is the velocity on the face area of the attenuator. Lindab reserves the right to make changes without prior notice 1 2021-11-04
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