VENTS VKPFI 4D 800x500

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Inline centrifugal sound- and heat insulated fan. Maximum capacity - 8120 m³/h.

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Description
Characteristics
Capacity diagram
Downloads
Dimensions
Additional diagrams
Legend

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.	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-, 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 VKPFI fan office ventilation example

Characteristics

Parameter	VKPFI 4D 800x500	Measurement unit
Sound- and heat-insulated casing	yes	-
Design	centrifugal	-
Phase	3	˜
Voltage	400	V
Frequency	50	Hz
Sound pressure level at 3 m distance	61	dBА
Power consumption	5850	W
Maximum air capacity	8120	m³/h
Current	9.35	A
RPM	1140	min^-1
Max. transported air temperature	-25 +40	°С
Protection rating	IP X4	-
Weight	127	kg
Number of poles	4	-
Casing material	galvanized steel	-
Width	800	mm
Height	500	mm
Form-ducts	for rectangular air ducts	-
Mounting	Inline	-

Capacity diagram

Selection method:
Air flow:
Pressure:

Operating point

Air flow: --
Pressure: ---

Files archieve

Downloads

Name

Download

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User's manual "VENTS VKPFI" (pdf 1.26Mb)

Brochure "VENTS VKPF, VKPFI" (pdf 578.28Kb)

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)

Dimensions

Characteristics

Parameter	Value	Measurement unit
B1	820	mm
B3	900	mm
H	500	mm
H1	520	mm
H3	720	mm
L	935	mm

Additional diagrams

Sound-power level		Octave-frequency band [Hz]
	Hz	General	63	125	250	500	1000	2000	4000	8000
L_wA to inlet	dBA	79	68	68	70	65	71	71	66	62
L_wA to outlet	dBA	84	65	72	73	77	81	80	75	71
L_wA to environment	dBA	64	49	56	55	53	59	50	48	48

ƞ, [%]		MC		EC		N		VSD		[kW]		[A]		[m³/h]		[Pа]		[RPM]		SR
42.3		А		Static		45.9		No		2.743		4.9		4648		881		1330		1

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	400x200, 500x250, 500x300, 600x300, 600x350, 700x400, 800x500, 900x500, 1000x500

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