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Axial fans VENTS OV series

Axial fans VENTS OV series
Low pressure axial fans in the steel casing with the air flow up to 25000 m³/h for wall mounting.
Model features
  • Multiple modes
  • Extract mode
  • Axial fan
3D model
  • Description
  • Modifications
  • Capacity diagram
  • Downloads
  • Designation key
  • BIM
  • Combined supply and exhaust ventilation systems for various premises where high air flow at relatively low system resistance is required. 

  • OV fans can be used for the direct air exhaust or pressurization in smoke ventilation systems. 

  • OV fan are suitable for outdoor wall mounting.

  • The fan casing and the impeller are made of steel with polymeric coating. 

  • OV fan terminal box is equipped with the cord for remote connection.
  • The impellers are powered by two-, four- or sixpole, single or three phase asynchronous motors with external rotor and built-in thermal overheating protection depending on the model. 

  • Ball bearings in the motor provide long service life designed for at least 40 000 hours.
  • Motor protection rating IP44-IP54.
  • Both smooth or step speed control is performed by means of the thyristor or autotransformer controller. 

  • Several fans can be connected to one controller if the total power and operating current do not exceed the rated controller values.
  • Fan is installed on the wall surface by means of a square OV series mounting plate.

  • The fan is powered through the external remote terminal box.

  • Power supply and installation shall be performed in compliance with the manual and wiring diagram on the terminal box.

Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Select document type
  • Advertising and printing products
  • Certificates
  • Technical documentation
"VENTS OV,OVK,OV1,OV1 R,OVK1,VKF,VKOM,OVP,VKOM(z),VKOM1(z)" user's manual 02-2022 (V03EN-13) (pdf 5Mb)
"VENTS OV, OVK, VKF" product description 03-2021 (pdf 2.61Mb)
Download high quality image "VENTS OV (ErP 2015)" (psd 4.66Mb)
Download image "VENTS OV (ErP 2015)" for your website (png 581.35Kb)
Designation key
Designation key
Series and modification Motor modification Dimension type
Number of poles  Phase
VENTS OV: square mounting plate 2
E: single phase
D: three phase
200; 250; 300; 350; 400; 450; 500; 550; 630, 710, 800


  ErP data
 Overall efficiency ŋ, [%]
 Measurement category MC
 Efficiency category EC
 Efficiency grade N
 Variable speed drive VSD
 Power [kW]
 Current [A]
 Air flow [m3/h]
 Static pressure [Pа]
 Speed [n/min-1]
 Specific ratio SR

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