Duct filter Dimensions lindab | safe STR L Ød 1 Description The duct filter fits in all circular ventilation fittings. To install the filter in a T-piece means a simple mounting and replac- ing. The special tapered shape gives 4 times larger filter area than the equivalent duct cross section area, giving lower pressure drop and longer exchange intervals than the equiv- alent flat filter. The diagram shows the pressure drop across a clean filter, including T-piece. The filter can be used to twice this pres- sure drop. It is a good idea to dimension the system for the average value. The filter is delivered as standard filter class Coarse 65% according to ISO 16890. Also available in class Coarse 95%. Max temperature = 100 °C Highest recommended air speed in the duct: Coarse 65% = 10 m/s Coarse 95% = 4,5 m/s Ød 1 L tolerance Nm [mm] [mm] 100 220 ± 20 125 260 ± 20 160 340 ± 20 200 420 ± 25 250 540 ± 30 315 670 ± 30 400 860 ± 35 500 1100 ± 50 630 1350 ± 50 Filter class: Coarse 65% 1000 500 100 50 area m² 0,04 0,05 0,09 0,14 0,22 0,34 0,55 0,89 1,37 m [kg] 0,04 0,08 0,12 0,16 0,23 0,36 0,59 0,72 0,91 Ød 1 [mm] v m ax = 10 m/s Δ p t [Pa] 100 125 160 200 250 315 400 500 630 10 5 5 10 50 100 500 1000 5000 [l/s] 50 100 500 1000 q 5000 10000 [m 3 /h] Filter class: Coarse 95% 500 Ød 1 [mm] Δ p t [Pa] 100 125 160 200 250 315 400 500 630 100 v m ax = 4,5 50 m/s Ordering example Product Dimension Ød 1 Filter class STR 200 65 10 5 2 10 50 50 100 100 500 1000 2000 [l/s] 500 1000 q 5000 [m 3 /h] Lindab reserves the right to make changes without prior notice 1 2021-06-07
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