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VENTS VKMK 250

  • Description
  • Characteristics
  • Downloads
  • Dimensions
  • Additional diagrams
  • Legend
Description
Description
APPLICATIONS
  • Exhaust ventilation system for various premises.

  • Suitable for mounting on any roof types as well as connection to Ø 150 up to 315 mm round air ducts.
DESIGN
  • The fan casing is made of steel with polymeric coating. 

  • A thin steel connection plate is provided at the bottom of VKMKp model.
MOTOR
  • The centrifugal impeller with backward curved blades is powered by means of the single-phase motor with external rotor.

  • The motors are equipped with thermal overheating protection with automatic restart as well as ball bearings for long service life.

  • For precise features, safe operation and low noise of the fan, each turbine is dynamically balanced while assembly.

  • Motor protection rating IP 44.

SPEED CONTROL
  • Smooth or step speed control is performed by means of the thyristor or autotransformer controller. 

  • Several fans can be connected to one controller in case the total power and operating current do not exceed the rated controller values.

MOUNTING
  • The fan is mounted on the roof directly above the ventilating duct or shaft and is firmly fixed to the flat surface by means of a connecting plate. 

  • Electrical connection and mounting shall be performed in compliance with the manual and wiring diagram on the terminal box.

Characteristics
Characteristics
Parameter VKMK 250
Measurement unit
Engine Type 220В / 50Гц -
Phase 1 ˜
Voltage 220-240 V
Frequency 50/60 Hz
Current A
Pressure 0 Pa
Sound pressure level at 3 m distance 53 dBА
Power consumption 240 W
Maximum air capacity 1340 m³/h
Maximum transported air temperature -25 +50 °С
Protection rating IP X4 -
Weight 10.1 kg
Spigot size 250 mm
SEC Class - -
Files archieve
Downloads
Name
User's manual "VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1" (pdf 3.37Mb)
Brochure "VENTS VKMK" (pdf 1.44Mb)
Download high quality image "VENTS VKMK (ErP 2015, 2016, 2018)" (psd 3.78Mb)
Declaration of сonformity "VKMK,VKMKp" (pdf 1.63Mb)
Brochure "Roof fans accessories" (pdf 129.67Kb)
Download image "VENTS VKMK (ErP 2015, 2016, 2018)" for your website (png 272.02Kb)
Dimensions
Characteristics
VENTS VKMK 250
Parameter Value Measurement unit
∅D 248 mm
∅D1 400 mm
H 249 mm
L 590 mm
L1 450 mm
Additional diagrams
Additional diagrams
Sound-power level   Octave-frequency band [Hz]
  Hz   General   63   125   250   500   1000   2000   4000   8000
LwA to inlet   dBA 74 58 65 66 69 66 62 53 47
LwA to environment dBA 65 57 64 60 49 39 39 44 40

Legend
Legend
Series    Spigot diameter, mm
VENTS VKMK
p - flat connection plate   150; 160; 200; 250; 315
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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Questionnaire
Basic parameter for domestic fan selection