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VENTS VKF 4E 300


Low pressure axial fans in the steel casing with the air flow up to 1475 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.

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

  • VKF fan is fitted with the external terminal box mounted on the fan casing.
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 X4.
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
  • VKF fan is installed into the duct by means of connecting flanges.

  • 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 VKF 4E 300
50 Hz
VKF 4E 300
60 Hz
Measurement unit
Phase 1 1 ˜
Voltage 230 230 V
Frequency 50 60 Hz
Sound pressure level at 3 m distance 44 45 dBА
Power consumption 75 92 W
Maximum air capacity 1340 1475 m³/h
RPM 1350 1405 min-1
Protection rating IP X4 IP X4 -
Weight 6.2 6.2 kg
Current 0.35 0.4 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 VKF (ErP 2015)" (psd 4.37Mb)
Download image "VENTS VKF (ErP 2015)" for your website (png 455.02Kb)
Dimensions
Characteristics
VENTS  VKF 4E 300
Parameter Value Measurement unit
∅D 310 mm
∅d 7 mm
ØD2 382 mm
B 410 mm
L 160 mm
∅D1 356 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 64 41 52 47 54 60 60 52 44 44 54
DESIGNATION KEY
DESIGNATION KEY
Series and modification Motor modification Dimension type
Number of poles  Phase
VENTS VKF: mounting into a vent duct

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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