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    VENTS VKF 2E 250

    VENTS VKF 2E 250
    • VENTS VKF 2E 250
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    • VENTS VKF 2E 250
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    Low pressure axial fans in the steel casing with the air flow up to 1150 m³/h for wall mounting.
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    • Description
    • Characteristics
    • Capacity diagram
    • Downloads
    • Dimensions
    • ADDITIONAL TECHNICAL DATA
    • DESIGNATION KEY
    Description
    Description
    APPLICATIONS

    • Combined supply and exhaust ventilation systems for various premises where high air flow at relatively low system resistance is required.
    DESIGN

    • The fan casing and the impeller are made of steel with polymeric coating. 
    • VKF fan is fitted with the external terminal box mounted on the fan casing.
    MOTOR

    • The impellers are powered by two-, four- or sixpole, single or three phase asynchronous motors with external rotor and built-in thermal overheating protection depending on the model. 
    • Ball bearings in the motor provide long service life designed for at least 40 000 hours.
    • Motor protection rating IP X4.
    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 if the total power and operating current do not exceed the rated controller values.
    MOUNTING

    • VKF fan is installed into the duct by means of connecting flanges.

    • The fan is powered through the external remote terminal box.

    • Power supply and installation shall be performed in compliance with the manual and wiring diagram on the terminal box.
    Characteristics
    Characteristics
    Parameter VKF 2E 250
    50 Hz     		VKF 2E 250
    60 Hz     		Measurement unit
    Phase 1 1 ˜
    Voltage 230 230 V
    Frequency 50 60 Hz
    Sound pressure level at 3 m distance 50 51 dBА
    Power consumption 80 91 W
    Maximum air capacity 1050 1150 m³/h
    RPM 2400 2990 min-1
    Protection rating IP X4 IP X4 -
    Weight 3.9 3.9 kg
    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
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    "VENTS OV,OVK,OV1,OV1 R,OVK1,VKF,VKOM,OVP,VKOM(z),VKOM1(z)" user's manual 02-2022 (V03EN-13) (pdf 5Mb)
    "VENTS OV, OVK, VKF" product description 03-2021 (pdf 2.61Mb)
    Download high quality image "VENTS VKF (ErP 2015)" (psd 4.37Mb)
    Download image "VENTS VKF (ErP 2015)" for your website (png 455.02Kb)
    Dimensions
    Characteristics
    VENTS VKF 2E 250
    Parameter Value Measurement unit
    ∅D 260 mm
    ∅d 7 mm
    ØD2 306 mm
    B 340 mm
    L 150 mm
    ∅D1 286 mm
    ADDITIONAL TECHNICAL DATA
    ADDITIONAL TECHNICAL DATA
    Sound-power level, A-weighted Gen. Octave-frequency band [Hz] LpA, 3 m dBA LpA, 1 m dBA
    dBA 63 125 250 500 1000 2000 4000 8000
    LwA to environment dBA 70 29 40 54 60 68 64 59 52 50 60
    DESIGNATION KEY
    DESIGNATION KEY
    Series and modification Motor modification Dimension type
    Number of poles  Phase
    VENTS VKF: mounting into a vent duct

    2
    4
    6
    8

    		 E: single phase
    D: three phase    		 200; 250; 300; 350; 400; 450; 500; 550; 630, 710, 800

     

      ErP data
     Overall efficiency ŋ, [%]
     Measurement category MC
     Efficiency category EC
     Efficiency grade N
     Variable speed drive VSD
     Power [kW]
     Current [A]
     Air flow [m3/h]
     Static pressure [Pа]
     Speed [n/min-1]
     Specific ratio SR
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    Basic parameter for domestic fan selection