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VENTS OV 4E 350


Low pressure axial fans in the steel casing with the air flow up to 2650 m³/h for wall mounting.

3D model
Gallery
  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Dimensions
  • ADDITIONAL TECHNICAL DATA
  • DESIGNATION KEY
Description
Description
APPLICATIONS
  • 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.

DESIGN
  • 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.
MOTOR
  • 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 IP 24.
SPEED CONTROL
  • 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.
MOUNTING
  • 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.

Characteristics
Characteristics
Parameter OV 4E 350
50 Hz
OV 4E 350
60 Hz
Measurement unit
Phase 1 1 ˜
Voltage 230 230 V
Frequency 50 60 Hz
Sound pressure level at 3 m distance 46 47 dBА
Power consumption 140 147 W
Maximum air capacity 2500 2650 m³/h
RPM 1380 1700 min-1
Protection rating IP 24 IP 24 -
Weight 7.8 7.8 kg
Current 0.65 0.66 A
Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Files archieve
Downloads
Name
User's manual "VENTS OV,OVK,OV1,OV1 R,OVK1,VKF,VKOM,OVP" (pdf 4.85Mb)
Brochure "VENTS OV, OVK, VKF" (pdf 2.62Mb)
Download high quality image "VENTS OV (ErP 2015)" (psd 4.66Mb)
Download image "VENTS OV (ErP 2015)" for your website (png 581.35Kb)
Dimensions
Characteristics
VENTS  OV 4E 350
Parameter Value Measurement unit
∅D 374 mm
∅d 9 mm
B 485 mm
B1 435 mm
L 165 mm
ADDITIONAL TECHNICAL DATA
ADDITIONAL TECHNICAL DATA
Sound-power level, A-weighted Gen. Octave-frequency band [Hz] LpA, 3 m dBA LpA, 1 m dBA
dBA 63 125 250 500 1000 2000 4000 8000
LwA to environment dBA 67 26 43 49 60 62 62 53 46 46 56

 

ŋ, [%] MC EC N VSD [kW] [A] [m3/h] [Pа] [n/min-1] SR
29.9 A Static 41.8 No 0.13 0.6 1717 80 1375 1
DESIGNATION KEY
DESIGNATION KEY
Series and modification Motor modification Dimension type
Number of poles  Phase
VENTS OV: square mounting plate 2
4
6
8
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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Basic parameter for domestic fan selection