VKV roof fans with vertical air ejection are used in exhaust systems of various types of rooms.
The casing is made of steel with a polymer coating.
The fans use two, four and six-pole, single or three-phase asynchronous motors with an external rotor with backward curved blades.
The fan is mounted directly on the roof surface or on an insulated or damp roof base set directly above the ventilation duct.
Type | Sizes [mm] | Weight [kg] | ||||
ØD | H | L | L1 | L2 | ||
VKV 2E 220 | 245 | 275 | 338 | 245 | 460 | 8,9 |
VKV 2E 225 | 210 | 275 | 338 | 245 | 460 | 9,6 |
VKV 2E 250 | 286 | 275 | 400 | 330 | 520 | 12,0 |
VKV 2E 280 | 286 | 275 | 400 | 330 | 520 | 12,7 |
VKV 4E 310 | 286 | 330 | 438 | 330 | 560 | 17,8 |
VKV 4D 310 | 286 | 330 | 438 | 330 | 560 | 17,8 |
VKV 4E 355 | 438 | 420 | 598 | 450 | 783 | 22,0 |
VKV 4D 355 | 438 | 420 | 598 | 450 | 783 | 22,0 |
VKV 4E 400 | 438 | 420 | 598 | 450 | 783 | 27,5 |
VKV 4E 450 | 438 | 454 | 668 | 450 | 872 | 30,0 |
VKV 4D 400 | 438 | 420 | 598 | 450 | 783 | 27,5 |
VKV 4D 450 | 438 | 454 | 668 | 450 | 872 | 30,0 |
VKV 6E 500 | 438 | 454 | 668 | 450 | 872 | 33,8 |
VKV 2E 220 | VKV 2E 225 | VKV 2E 250 | VKV 2E 280 | VKV 4E 310 | VKV 4D 310 | |
Voltage [V] | 230 | 230 | 230 | 230 | 230 | 400 |
Power [W] | 85 | 135 | 155 | 225 | 120 | 110 |
Amperage [A] | 0,38 | 0,6 | 0,7 | 1,0 | 0,54 | 0,32 |
Efficiency [m3/h] | 700 | 900 | 1300 | 1780 | 1820 | 1950 |
Rotor [min -1] | 2700 | 2650 | 2600 | 2700 | 1370 | 1400 |
Noise level [dB(A)/3 m] | 49 | 49 | 65 | 66 | 45 | 53 |
Max. working temp. [°C] | 55 | 55 | 50 | 50 | 85 | 65 |
Protection class | IP X4 | IP X4 | IP X4 | IP X4 | IP X4 | IP X4 |
VKV 4E 355 | VKV 4D 355 | VKV 4E 400 | VKV 4D 400 | VKV 4E 450 | VKV 4E 450 | VKV 6E 500 | |
Voltage [V] | 230 | 400 | 230 | 400 Y | 230 | 400 Y | 230 |
Power [W] | 245 | 170 | 480 | 385 | 640 | 470 | 385 |
Amperage [A] | 1,12 | 0,52 | 2,4 | 0,7 | 3,1 | 0,82 | 1,82 |
Efficiency [m3/h] | 2800 | 2350 | 3400 | 3800 | 3850 | 4300 | 4700 |
Rotor [min -1] | 1420 | 1400 | 1400 | 1430 | 1350 | 1430 | 880 |
Noise level [dB(A)/3 m] | 46 | 53 | 52 | 52 | 53 | 53 | 47 |
Max working temp. [°C] | 50 | 70 | 80 | 60 | 50 | 50 | 50 |
Protection class | IP X4 | IP X4 | IP X4 | IP X4 | IP X4 | IP X4 | IP X4 |