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    VENTS VOK 4E 350

    VENTS VOK 4E 350
    • VENTS VOK 4E 350
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    • VENTS VOK 4E 350
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    Axial roof fan with the air capacity up to 2650 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 4E 350
    50 Hz     		VOK 4E 350
    60 Hz     		Measurement unit
    Phase 1 1 ˜
    Voltage 230 230 V
    Frequency 50 60 Hz
    Sound pressure level at 3 m distance 62 63 dBА
    Power consumption 140 147 W
    Maximum air capacity 2500 2650 m³/h
    RPM 1380 1700 min-1
    Transported air temperature -30...+60 -30...+50 °С
    Protection rating IP 24 IP 24 -
    Design axial axial -
    Weight 12 12 kg
    Duct diameter 350 350 mm
    Number of poles 4 4 -
    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 0.65 0.66 A
    Capacity diagram
    Capacity diagram
    • Selection method:
    • Air flow:
    • Pressure:
    Operating point
    • Air flow: --
    • Pressure: ---
    Files archieve
    Downloads
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    • Advertising and printing products
    • Certificates
    • Technical documentation
    Name
    Download
    Show
    "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 4E 350
    Parameter Value Measurement unit
    ∅D 364 mm
    Ø D1 555 mm
    H 350 mm
    L 655 mm
    L1 535 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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