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Preliminary and intermediate filter

For the pre-filtration in ventilation systems and devices of all kinds up to fine dust filtration. 

Dimensions:

  • 610 x 910 x 47 mm, Filter quality G3 (EU3) and G4 (EU4)
  • 610 x 610 x 47 mm, Filter quality G3 (EU3) and G4 (EU4)
  • 305 x 610 x 47 mm, Filter quality G3 (EU3) and G4 (EU4)
  • 305 x 305 x 47 mm, Filter quality G3 (EU3) and G4 (EU4)


     

Technical data

 Quality class G3 (EU3)Quality class G4 (EU4)
FrameCardboard frame, 47 mm wideCardboard frame, 47 mm wide
Filter mediumGlass woolSynthetic
Filtration efficiency (Am)85 %90 %
Nominal volume flow5400 m³/h/m²5400 m³/h/m²
Nominal volume speed by nominal volume1,5 m/s1,5 m/s
Starting pressure difference30 Pa42 Pa
Recommanded final pressure difference450 Pa250 Pa
Temperature / air humidity100 °C / 100 % RF100 °C / 100 % RF