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VENTS GRM 285

  • Description
  • Characteristics
  • Downloads
  • Dimensions
  • Additional diagrams
  • Legend
Description
Description
APPLICATION DESIGN
  • Exhaust ventilation, heating and air conditioning networks in industrial, commercial and domestic premises.
  • Made of high-quality metal shape with polymer coating
  • Polymer or anodized grille coating ensures weather-resistant properties.
  • Shutters are made of PVC plactic.
  • Non-standard sizes may be ordered.
MODIFICATION
  • Available modifications with an adapter (A) for connection to air ducts.
  • Available modifications with versatile fixing (u) or with special springs (p) for fast mounting.
 
Characteristics
Characteristics
Parameter GRM 285
Measurement unit
Form Square -
Material metal shape with polymer coating -
Adjustment nonadjustable -
Inner cross section size 200х200 mm
Files archieve
Downloads
Name
Download high quality image "GRM (front view)" (psd 1.9Mb)
Download high quality image "GRM (back view)" (psd 2.07Mb)
Download image "GRM (front view)" for your website (png 395.17Kb)
Download image "GRM (back view)" for your website (png 464.61Kb)
Brochure "GRM" (pdf 126.04Kb)
Dimensions
Characteristics
VENTS  GRM 285
Parameter Value Measurement unit
L 284 mm
L1 234 mm
L2 220 mm
Additional diagrams
Additional diagrams

Calculation formula   Correction factor Кp
ΔPp = ΔP х Кp     22° 45°
  Кp 1 1.25 1.5
Calculation formula   Correction factor К
LWA = LWAO x K   Sap [m2] 0.01 0.02 0.05 0.1 0.2 0.4
  K [dB(A)] -9 -6 -3 0 +3 +6

Designation:

ΔPp - pressure loss at various vane positions [Pa];
ΔP - pressure loss [Pa];
Кp – correction factor for pressure loss calculation depending on louvre deflection angle;
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].


Legend
Legend

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