VENTILATOR FANS VNG

One-sided suction ventilator fans of the VNG type are of a radial-flow low-pressure design with directly installed electric motors. These ventilator fans are manufactured for a non-explosive environment as well as for a potentially explosive working environment – Zone 2. The ventilator fans are intended for transportation of air or air mixtures within temperature ranges of up to 250°C.

One-sided suction ventilator fans of the VNG type are of a radial-flow low-pressure design with directly installed electric motors. The ventilator fans are intended for transportation of air or air mixtures within temperature ranges of up to 250°C. They are powered with flange electric motors where the fan propeller is set overhung on the shaft of the electric motor. The ventilator fan is welded from steel plates. The casing of the ventilator fan is of a one-side “suction” design with one or two discharges. There is no flange at the discharge – it is possible to order. The ventilator fan is also possible to manufacture with zince-coated tube as a adapter for your sensor. (see the photo on the front-page) There are four holes in the baseplate for fixing on the frame or another construction. These ventilator fans are suitable for using in the kiln or another cabs. These ventilator fans are manufactured for a non-explosive environment as well as for a potentially explosive working environment – Zone 2 (labelled as Z2). The ventilator fans are not suitable for transportation of fibrous particles. The ventilator fan operates with its electric motor in a vertical upward or downward position (this position with the vertical axis of the shaft is labelled as “s“). It is also possible to use the ventilator fans in a horizontal position (this position is labelled as “v“- this symbol shall be cited in the order). Ventilator fans without the symbols “s“ or “v“ respectively (see the table) can be operated both in horizontal and vertical positions.

The ventilator fans shall be in operation until the temperature of the transported air has dropped below +80°C.

This ventilator fan is also made with cone belt transmission for temperature ranges of up to 120°C (see more details by VNGKP) Ventilator fans are made in left or right-hand construction. There is a left-hand construction on the scheme. Position of the construction shall be cited in the order.The ventilator fans intended for non-explosive environment may be manufactured with speed regulator, but only for speed drop(min. 700 r.p.m.). Use of speed regulator with ventilator fans for Zone 2 is forbidden.If you want to order the speed regulator, please cite it in the order.

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WITH TWO DISCHARGES

LEFT-SIDE CONSTRUCTION

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There are no flanges at the discharge – they are possible to order

 

WITH TWO DISCHARGES

LEFT-SIDE CONSTRUCTION

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POSITIONS OF THE VENTILATOR FAN FROM THE “SUCTION” POINT OF VIEW

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CAPACITY DIAGRAM - with two discharges

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