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VENTS VKPF 4D 500x250


Inline centrifugal fan. Maximum capacity - 1850 m3/h.

  • Description
  • Characteristics
  • Downloads
  • Dimensions
  • Additional diagrams
  • Legend
Description
Description
APPLICATIONS
  • Supply and exhaust ventilation systems for various premises with a limited mounting space. 
  • Designed for connection with 400x200, 500x250, 500x300, 600x300, 600x350, 700x400, 800x500, 900x500, 1000x500 mm rectangular air ducts.
DESIGN
  • The fan casing is made of galvanized steel.
 
MOTOR
  • The impeller with forward curved blades made of galvanized steel is powered by 4-, 6- or 8- pole external rotor asynchronous motor.

  • Such modification ensures high air flow capacity and relatively significant differential pressure.

  • For thermal overheating protection the thermal contacts with leaded outside terminals are incorporated in the motor winding for connection with the external protection devices. 

  • The motor is equipped with the ball bearings for long service life.
  • For precise features, safe operation and low noise, each impeller is dynamically balanced while assembly.
  • Motor protection rating IP 44.
SPEED CONTROL
  • Smooth or step speed control with a thyristor or autotransformer speed controller. 
  • Several fans may be connected to one speed controller provided that the total power and operating current do not exceed the rated speed controller parameters.
MOUNTING
  • The fans are designed for inline rectangular air duct mounting and require no special fixing in case of direct connection.
  • In case of connection through the flexible connectors the fan is fixed to a building by means of supports, suspension brackets or fixation brackets. 
  • The fans can be mounted in any position with respect to the pointer direction on the casing.
  • Access for the fan maintenance shall be provided.
  • The fan is powered through the external terminals.
  • The casing is provided with the removable access door for maintenance.
VENTS VKPF fan warehouse ventilation example
Characteristics
Characteristics
Parameter VKPF 4D 500x250
Measurement unit
Sound- and heat-insulated casing no -
Design centrifugal -
Phase 3 ˜
Voltage 400 V
Frequency 50 Hz
Sound pressure level at 3 m distance 54 dBА
Power consumption 570 W
Current 0.94 A
Maximum air capacity 1850 m³/h
Max. transported air temperature -20 +40 °С
RPM 1270 min-1
Protection rating IP X4 -
Weight 24 kg
Number of poles 4 -
Casing material galvanized steel -
Width 500 mm
Height 250 mm
Duct for rectangular air ducts -
Type , -
Mounting Inline -
Files archieve
Downloads
Name
Brochure "VENTS VKPF, VKPFI" (pdf 578.28Kb)
Download high quality image "VENTS VKPF (ErP 2015, 2016, 2018)" (psd 4.1Mb)
Declaration of сonformity "VKPF,VKPFI" (pdf 1.68Mb)
Download image "VENTS VKPF (ErP 2015, 2016, 2018)" for your website (png 409.57Kb)
User's manual "VENTS VKP, VKPI, VKPF, VKPFI, VKP EC, VKPI EC" (pdf 5.71Mb)
Dimensions
Characteristics
VENTS  VKPF 4D 500x250
Parameter Value Measurement unit
В 500 mm
B1 520 mm
B2 540 mm
H 250 mm
H1 270 mm
H2 290 mm
H3 335 mm
L 640 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 60 67 64 61 64 62 60 58
LwA to outlet dBA 76 57 65 65 67 69 69 68 63
LwA to environment dBA 61 41 48 53 53 56 52 50 53

 

ƞ, [%] MC EC N VSD [kW] [A] [m3/h] [Pа] [RPM] SR
34.3 А Static 44.9 No 0.210 0.6 820 310 1420 1

 

Legend
Legend
Series  Number of poles Phase Flange diameter [WxH]
VENTS VKPF
I - sound- and heat-insulated casing
4,6,8 E-single phase
D - three phases
400х200, 500х250, 500х300, 600х300, 600х350, 700х400, 800х500, 900х500, 1000х500

 

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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