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Inline centrifugal fan in plastic casing with the air capacity up to 340 m³/h.

  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Dimensions
  • Additional characteristics
  • Designation key
  • Supply and exhaust ventilation and air conditioning systems of various premises requiring cost-saving controllable ventilation. 
  • The best ventilation solution for exhaust ventilation of bathrooms, kitchens and other humid premises.
  • Compatible with Ø 100, 125, 150, 200, 250 and 315 mm round air ducts.
  • Durable, impact-resistant and corrosion-free ABS-plastic casing.
  • Airtight terminal box for connection to power mains. 
  • VK … EC P is fitted with a built-in smooth speed controller and power cord with IEC C14 electric plug.
  • High-efficient electronically commutated direct current motors with backward curved blades.
  • Such motors are the most state-of-the-art energy saving solution.
  • Power consumption of EC motors is 35% less as compared to standard motors.
  • The fans with EC motors have excellent aerodynamic performance and low-noise operation.
  • EC motors are featured with high performance and total speed controllable range.
  • High efficiency reaching 90% is the premium advantage of the electronically-commutated motors.
  • The motors are equipped with ball bearings designed for at least 40 000 operating hours.
  • The fan is operated with an external 0-10 V control signal.
  • The air capacity is controlled depending on air temperature, pressure level, smoke content, etc.
  • The speed of the EC motor changes proportionally to fluctuations of the control parameter and the fan delivers a required air volume to the ventilation system.
  • Maximum fan speed does not depend on the current frequency.
  • The fan is compatible both with 50 or 60 Hz power mains.
  • The fans may be integrated into a unified data processing control system.
  • The specially designed software provides precise control of all the fans integrated into the system.
  • The fans are designed for duct mounting in any point of the ventilation system with the casing mounted at any angle.
  • In case of vertical mounting a protective outer hood must be installed on the top. 
  • Fixation to the floor wall or ceiling is performed with the supplied mounting brackets.
  • Electric connection and installation must be performed in compliance with the manual and the wiring diagram on the terminal box.
VENTS VK EC fan kitchen ventilation example
Parameter VK 100 EC
Measurement unit
Duct diameter 100 mm
Design centrifugal -
Voltage 1~230 V
Frequency 50/60 Hz
Sound pressure level at 3 m distance 40 dBА
Power consumption 82 W
Maximum air capacity 340 m³/h
Current 0.62 A
EC motor yes -
RPM 3400 min-1
Max. transported air temperature -25 +60 °С
Protection rating IP X4 -
Weight 2 kg
Casing material plastic -
SEC Class B -
Duct for round air ducts -
Type -
Mounting Inline -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Files archieve
Brochure "VENTS VK EC" (pdf 1.86Mb)
Download high quality image "VENTS VK EC (ErP 2015, 2016, 2018)" (psd 4.28Mb)
Download image "VENTS VK EC (ErP 2015, 2016, 2018)" for your website (png 391.06Kb)
User’s manual "VENTS VK EC" (pdf 1.35Mb)
Parameter Value Measurement unit
∅D 100 mm
ØD1 250 mm
B 270 mm
L 230 mm
L1 30 mm
L2 27 mm
L3 30 mm
Additional characteristics
Additional characteristics
Point on the diagram 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Power [W] 82 82 81 81 51 50 45 40 32 30 28 25 17 16 15 13 8 8 7 6


Sound power level, A-filter applied Sound pressure level at 3 m distance, A-filter applied Sound pressure level at 1 m distance, A-filter applied
Sound power level, A-weighted Gen. Octave frequency band [Hz]
  Hz 63 125 250 500 1000 2000 4000 8000 LpA, 3 m [dBA] LpA, 1 m [dBA]
LwA to inlet dBA 85 62 77 83 75 69 65 59 48 64 74
LwA to outlet dBA 84 69 77 82 74 66 62 57 46 63 73
LwA to environment dBA 61 29 44 52 56 55 54 44 31 40 50
Designation key
Designation key
Series Duct diameter Motor Options


100; 125; 150; 200; 250; 315

- synchronous electronically commutated motor
U: speed controller with electronic thermostat and temperature sensor integrated into the air duct. Equipped with power cord and IEC C14 electric plug.
Un: speed controller with electronic thermostat and external temperature sensor fixed on 4 m cable. Equipped with power cord and IEC C14 electric plug. 
 built-in smooth speed controller and power cable with IEC C14 electric plug.
R: power cord with IEC C14 electric plug.


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