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VENTS VKPFI 4D 700*400


Inline centrifugal sound- and heat insulated fan. Maximum capacity - 6450 m3/h.

  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Dimensions
  • Additional diagrams
  • Designation key
Description
Description
APPLICATIONS
  • Supply and exhaust ventilation systems for various premises with a limited mounting space. 
  • Designed for connection with 400*200, 500*250, 500*300, 600*300, 600*350, 700*400, 800*500, 900*500, 1000*500 mm rectangular air ducts.
DESIGN
  • The fan casing is made of galvanized steel.
  • VKPFI models are heat- and sound-insulated with 50 mm layer of mineral wool.
MOTOR
  • The impeller with forward curved blades made of galvanized steel is powered by 4- or 6- 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 VKPFI fan office ventilation example
Characteristics
Characteristics
Parameter VKPFI 4D 700*400
Measurement unit
Phase 3 ˜
Voltage 400 V
Frequency 50 Hz
Sound pressure level at 3 m distance 56 dBА
Air capacity 6450 m³/h
Power consumption 3630 W
Current 6.00 A
RPM 1320 min-1
Protection rating IP X4 -
Design centrifugal -
Transported air temperature -25 ... +40 °С
Weight 103 kg
Number of poles 4 -
Sound- and heat-insulated casing yes -
Casing material galvanized steel -
Width 700 mm
Height 400 mm
Duct for rectangular air ducts -
Mounting Inline -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Files archieve
Downloads
Select document type
  • Advertising and printing products
  • Certificates
  • Technical documentation
Name
"VENTS VKPF, VKPFI" product description 12-2020 (pdf 2.82Mb)
Download high quality image "VENTS VKPFI (ErP 2015, 2016, 2018)" (psd 4.09Mb)
Declaration of сonformity "VKPF,VKPFI" (pdf 1.68Mb)
Download image "VENTS VKPFI (ErP 2015, 2016, 2018)" for your website (png 372.58Kb)
"VENTS VKP, VKPI, VKPF, VKPFI, VKP EC, VKPI EC" user's manual 08-2022 (V07EN-05) (pdf 3.61Mb)
Dimensions
Characteristics
VENTS  VKPFI 4D 700*400
Parameter Value Measurement unit
В 700 mm
B1 720 mm
B2 mm
B3 800 mm
H 400 mm
H1 420 mm
H2 mm
H3 620 mm
L 880 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 77 75 70 64 62 73 71 66 64
LwA to outlet dBA 79 68 70 70 72 76 72 74 67
LwA to environment dBA 61 41 54 57 53 56 52 53 47

 

ƞ, [%]   MC   EC   N   VSD   [kW]   [A]   [m3/h]   [Pа]   [RPM]   SR
32.4   А   Static   41   No   1.890   4.34   3240   751   1430   1

 

Designation key
Designation key
Series   Motor modification Flange diameter [W*H]
Number of poles Phase
VENTS VKPF I: sound- and heat-insulated casing 4
6
E: single phase
D: three phases
400*200; 500*250; 500*300; 600х300; 600*350; 700*400; 800*500; 900*500; 1000*500
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