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    VENTS VOK 2E 250*

    VENTS VOK 2E 250*
    • VENTS VOK 2E 250*
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    • VENTS VOK 2E 250*
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    Axial roof fan with the air capacity up to 1150 m³/h in the steel casing with the horizontal exhaust of air.
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    • Description
    • Characteristics
    • Capacity diagram
    • Downloads
    • Dimensions
    • Legend
    Description
    Description
    APPLICATIONS

    • Exhaust ventilation system for various premises for roof mounting.
    • Compatible with Ø 200 to 500 mm round air ducts.
    DESIGN

    • The fan casing is made of steel with polymeric coating.

    		  
    MOTOR

    • The impellers are powered with two- or four-pole, singlephase asynchronous motors with external rotor and built-in thermal overheating protection with automatic restart depending on the model.

    • Ball bearings in the motor ensure long service life.

    • 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 under condition that 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.

    • While mounting VOK fans directly onto the flat roof a supporting block shall be provided to prevent water and snow drops into the vent of the ventilation shaft.

    • Electrical connection and installation shall be performed in compliance with the manual and circuit diagram on the terminal box.
    Characteristics
    Characteristics
    Parameter VOK 2E 250*
    50 Hz     		VOK 2E 250*
    60 Hz     		Measurement unit
    Phase 1 1 ˜
    Voltage 230 230 V
    Frequency 50 60 Hz
    Sound pressure level at 3 m distance 60 61 dBА
    Power consumption 80 91 W
    Maximum air capacity 1050 1150 m³/h
    RPM 2400 2990 min-1
    Transported air temperature -30...+60 -30...+50 °С
    Protection rating IP 24 IP 24 -
    Design axial axial -
    Weight 7 7 kg
    Duct diameter 250 250 mm
    Number of poles 2 2 -
    Casing material polymer coated steel polymer coated steel -
    Sound-insulated casing no no -
    Duct for round air ducts for round air ducts -
    Type exhaust exhaust -
    Mounting for roof for roof -
    Current 0.4 0.42 A
    Capacity diagram
    Capacity diagram
    • Selection method:
    • Air flow:
    • Pressure:
    Operating point
    • Air flow: --
    • Pressure: ---
    Files archieve
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    • Advertising and printing products
    • Certificates
    • Technical documentation
    Name
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    "VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1" user's manual 01-2021 (V12EN-09) (pdf 1.96Mb)
    "VENTS VOK" product description 03-2021 (pdf 647.26Kb)
    Download high quality image "VENTS VOK (ErP 2015, 2016, 2018)" (psd 3.85Mb)
    Declaration of сonformity "VOK, VOK1" (pdf 1.65Mb)
    "Roof fans accessories" product description 02-2016 (pdf 132.53Kb)
    Download image "VENTS VOK (ErP 2015, 2016, 2018)" for your website (png 291.07Kb)
    Dimensions
    Characteristics
    VENTS VOK 2E 250*
    Parameter Value Measurement unit
    ∅D 262 mm
    Ø D1 405 mm
    H 280 mm
    L 425 mm
    L1 330 mm
    Legend
    Legend
    Series Motor modification Impeller diameter
    Number of poles Phase
    VENTS VOK 2, 4 E: single phase 200; 250; 300; 350

     

    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
    Accessories
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