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RN 450х400

RN 450х400
RN 450х400
  • RN back view.

Color scheme

 Beige RAL 1015  Black RAL 9005  Blue RAL 5005  Brown RAL 8017  Grey RAL 7001  White RAL 9016

ParameterValueUnit
Material
Aluminum
Form
Rectangular
Adjustment
Non-regulated
Air pass
0.087
m² 
Connected air duct size
450х400
mm
RN 450х400
SizesLH
mm450400

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Calculation formula   Correction factor К
LWA = LWAO x K   Sap [m2] 0.03 0.05 0.07 0.1 0.15 0.2 0.3 0.4
  K [dB(A)] 4.5 3 1.5 0 +1.5 +3 +4.5 +6

Designation:

ΔP - pressure loss [Pa];
LWA - sound power level [dB(A)];
LWAO - sound power level for air pass 0,1 m2 [dB(A)];
K - correction factor for sound power level calculation depending on air pass [dB(A)];
Sap - air pass [m2];
V - rated speed [m/s].