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- Availability: 99
- Brand: Vents
- Model: 9905
- Weight: 50.00kg
- UPC: 9905
- JAN: 487
The Vents VKPF 4E 600x300 fan is a duct fan for use in supply or exhaust ventilation systems. The temperature of the transported air is allowed from -25°C to +50°C. The maximum fan capacity is2950 m3/h. The fan is equipped with a single-phase motor; fan performance can be adjusted using a thyristor or transformer regulator (ordered separately).
Specifications
| Parameter | Value |
| Voltage, V | 230 |
| Current, A | 6.45 |
| Current frequency, Hz | 50 |
| Maximum power, W | 1240 |
| Capacity, m3/h | 2950 |
| Rotation speed, min-1 | 1210 |
| Noise level at a distance of 3 m, dB(A) | 59 |
| Maximum temperature of transported air, C | -25...+50 |
| Weight, kg | 35 |
| Protection, class | IPХ4 < /td> |
| Pipe size, mm | 600x300 |
| Number of poles | 4 |
Overall dimensions
| Dimensions | B | B1 | B2 | H | H1 | H2 | H3 | L |
| mm | 600 | 620 | 640 | 300 | 320 | 340 | 375 | 680 |
Diagram
Design
The Vents VKPF 4E 600x300 fan housing is made of galvanized steel.
Motor
4 and 6 pole asynchronous motors with an external rotor and a galvanized steel impeller with forward curved blades are used. Fans with this turbine design are characterized by high performance and a relatively large pressure drop.
To provide thermal protection against overheating, thermal contacts with terminals for connecting external protection devices are built into the motor winding. The use of rolling bearings in engines ensures a long service life. To achieve precise performance, low noise levels and safe fan operation, each turbine undergoes dynamic balancing during assembly. The motor in the fan has a protection class of IP 44.
Adjusting the fan speed
Adjustment can be either smooth or stepwise, and is carried out using a triac or autotransformer regulator. Several fans can be connected to one control device at once, provided that the total power and operating current do not exceed the rated parameters of the controller.
The fan performance regulator makes it possible to periodically reduce power consumption and extend the service life of the electric motor, and reduces the noise level from the fan in cases where the user does not require maximum performance. It is especially important to use such adjustment in supply ventilation systems during the cold season. Preheating less supply air requires less heater energy. During the warm period of the year, when heating of the supply air is not required, the fan performance is set to maximum power.
Installation
Fans are mounted through flexible inserts; they must be fastened to the building structure using supports, hangers or brackets.
The fan can be installed in any position, taking into account the direction of air flow (indicated by an arrow on the fan housing). It is also necessary to provide access for servicing the fan. Power is supplied to the fan through external terminals. For inspection and maintenance, the fan is equipped with a technological cover on the housing.
Installation example
