Theatre diffuser lindab | we simplify construction CRP Dimension B B-20 A A-50 200 20 Description CRP is a rectangular displacement diffuser for installation under seats in theatres, auditoriums, etc. It is suitable for installation in a pressure chamber and has a fixed resistance that ensures even distribution of the air. The diffuser can be adapted to the correct air volume and pressure, specified according to the actual conditions. • It has built-in resistance that ensures even distribution over the diffusers. • The diffuser can be supplied with a specified pressure setting. • The diffuser is available in other dimensions. Maintenance The front plate of the diffuser can be removed to enable cleaning of the internal components. The visible parts of the diffuser can be wiped with a damp cloth. Materials and finish Diffuser: Front plate: Standard finish: Standard colour: Galvanised steel 1 mm galvanised steel Powder-coated RAL 9010 or 9003, gloss 30 The diffuser is available in other colours. Please contact Lindab’s sales department for further information. Order code Product Type CRP aaa Size : 4010, 4015, 5010, 5015 Example: CRP-4015 Size 4010 4015 5010 5015 A [mm] 400 400 500 500 B [mm] 100 150 100 150 Weight [kg] 1, . 60 2, . 20 2, . 00 2, . 70 Pressure, sound level ǻ p t [Pa] CRP 100 70 50 30 20 15 4010 5010 4015 305015 25 20 15 10 7 5 10 40 50 Size 4010 4015 5010 5015 63 125 5 -6 0 -4 7 -4 5 -3 Near zone v [m]/s CRP 0.5 0.4 L WA dB(A) 15 60 20 70 80 q V [l/s] 30 q V [m 3 /h] 90 100 Centre frequency Hz 250 500 1K 2K 4K 8K -5 -2 -4 -9 -17 -26 -1 0 -6 -10 -18 -27 -3 0 -6 -12 -18 -29 -1 0 -6 -11 -19 -30 ∆ T: -3 -2 -1 0.3 0.2 0.15 0.1 0.05 1 45 v [m/ s ] q V [l/(s m)] 2 3 4 5 7 10 15 20 30 40 50 70 100 150 q V [m 3 /(h m)] 7 10 15 20 30 40 50 70 100 150 200 300 400 The speed is measured 0.5 m from the diffuser. Lindab reserves the right to make changes without prior notice 1 2021-11-05
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