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Inline centrifugal fan with the air capacity up to 1010 m³/h in steel casing.

  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Dimensions
  • Additional characteristics
  • Designation key
  • Supply and exhaust ventilation and air conditioning systems for various premises requiring cost-effective solution and controllable ventilation.
  • EC motors applied in VKM fans reduce energy demand by about 35 % and ensure high aerodynamic performance and low noise level.
  • Such characteristics are of special importance for ventilation of public premises as banks, supermarkets, restaurants, hotels, installation close to residential buildings and for domestic application, e.g. ventilation of private pools.
  • EC motors enable integration of several fans into a unified networks and their centralized control.
  • The steel casing ensures reliable operation of the fan in case of its outside installation.
  • The fans are designed for connection to Ø 100, 125, 150, 160, 200, 250 and 315 mm air ducts.
  • The fan casing is made of polymer coated steel.
  • New technologies for manufacture of the fan components let attain the total casing air tightness.
  • The impellers with backward curved blades are powered with a high efficient electronically commutated (EC) direct current motor with external rotor.
  • As of today, such motor type is the most advanced solution for energy saving.
  • EC motors are featured by high performance and the best speed controllable range.
  • Premium efficiency reaching up to 90 % is the absolute advantage of electronically commutated motors.
  • The motors are equipped with ball bearings for longer service life of the fan (40 000 hours).
  • For precise features, safe operation and low noise, each turbine is dynamically balanced while assembly.
  • Motor ingress protection rating IP44.
  • The fan is controlled with the external control signal 0-10 V (air flow control as a function of temperature, pressure, smoke conditions and other parameters).
  • Should the control value get changed, the EC motor adjusts its speed and the fan boosts as much air flow to the ventilation system as required.
  • Maximum speed of the fan does not depend on the current frequency and it can operate at 50 or 60 Hz mains supply.
  • The fans may be integrated into the unified dispatch system.
  • The respective software enables to control all the fan integrated into the system.
  • The computer displays all the system parameters.
  • Each fan in the system may be individually adjusted.
  • The fans may be installed at any angle.
  • The fixing brackets that are included into the delivery set are used to facilitate the fan mounting to the wall.
  • The fan is connected to power mains through the external terminal box.
Parameter VKMS 200 EC
Measurement unit
Low-powered motor no -
High-power version yes -
Duct diameter 200 mm
Design centrifugal -
Phase 1 ˜
Voltage 230 V
Frequency 50/60 Hz
Sound pressure level at 3 m distance 48 dBА
Air capacity 1010 m³/h
Power consumption 100 W
Current 0.74 A
EC motor yes -
Max. transported air temperature -25 +60 °С
RPM 2400 min-1
Protection rating IP X4 -
Weight 5.7 kg
Casing material polymer coated steel -
Outdoor mounting yes -
SEC Class B -
Duct for round air ducts -
Mounting outdoor mounting, Inline -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Files archieve
User's manual "VENTS VKM EC" (pdf 2.34Mb)
Brochure "VENTS VKM EC" (pdf 2.09Mb)
Download image "VKM EC (ErP 2015, 2016, 2018)" for your website (png 447.24Kb)
Download high quality image "VKM EC (ErP 2015, 2016, 2018)" (psd 4.18Mb)
Parameter Value Measurement unit
∅D 198 mm
ØD1 345 mm
B 395 mm
B1 355 mm
H 435 mm
L 255 mm
L1 25 mm
L2 30 mm
L3 40 mm
Additional characteristics
Additional characteristics
Sound-power level, A - weighted Octave-frequency band [Hz] LpA, 3 m [dBА] LpA, 1 m [dBА]
  Hz Gen. 63 125 250 500 1000 2000 4000 8000
LwA to inlet dBА 93 63 80 88 85 87 84 79 67 72 82
LwA to outlet dBА 89 65 77 74 83 84 83 77 64 68 78
LwA to environment dBА 68 30 49 58 62 65 61 52 38 48 58
Designation key
Designation key
Series Air duct diameter [mm] Motor Options
VENTS VKMS: high-power version
100; 125; 150; 160; 200; 250; 315 ЕС: electronically commutated synchronous motor Q: low-power motor.
Un: speed controller with electronic thermostat and external temperature sensor fixed on 4 m cable. Equipped with power cord and IEC C14 electric plug.
P: built-in smooth speed controller and power cord with IEC C14 electric plug.
R: power cord with IEC C14 electric plug.
R1: power cable with a mains plug.
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