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VENTS ONF 350x900

  • Description
  • Characteristics
  • Downloads
  • Dimensions
  • Additional diagrams
  • Legend
Description
Description
APPLICATION DESIGN
  • Supply and exhaust ventilation, heating and air conditioning networks in industrial, commercial and domestic premises.
  • Made of high-quality extruded aluminium.
  • Polymer or anodized grille coating ensures weather-resistant properties.
  • Non-standard sizes may be ordered.
  • Grilles above 450 mm are equipped with a partition for extra rigidity (ONFS series).
MODIFICATION
  • Available modifications with an adapter (A) for connection to air ducts.
  • Available modifications with  special springs (p) for fast mounting.
 
Air flow distribution
vane deflection angle - 45°

 

Characteristics
Characteristics
Parameter ONF 350x900
Measurement unit
Air pass 0.185 mm²
Connected air duct size 350х900 mm
Adjustment nonadjustable -
Form rectangular -
Material aluminium -
Files archieve
Downloads
Name
Download high quality image "ONF/ONFS (front view)" (psd 1.48Mb)
Brochure "ONF / ONFS" (pdf 758.71Kb)
Download image "ONF/ONFS (front view)" for your website (png 298.57Kb)
Download high quality image "ONF/ONFS (back view)" (psd 1.5Mb)
Download image "ONF/ONFS (back view)" for your website (png 360.97Kb)
Dimensions
Characteristics
VENTS ONF 350x900
Parameter Value Measurement unit
L 350 mm
H 900 mm
Additional diagrams
Additional diagrams

Calculation formula   Correction factor K
LWA = LWAO x K   Sap [m2] 0.005 0.01 0.02 0.03 0.05 0.07 1
  K [dB(A)] -13 -9 -6 -4.5 -3 -1.5 0

Designation:

ΔP - pressure loss [Pa];
LWA - sound power level [dB(A)];
LWAO - sound power level for air pass 0.1 m2 [dB(A)];
KL - correction factor for sound power level depending on air pass [dB(A)];
AK - air area [m2];
V - rated speed [m/s].


Legend
Legend

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Questionnaire
Basic parameter for domestic fan selection