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R-IMPELLER

Centrifugal fans with impeller type R for clean air, for commercial and industrial ventilation and industrial clean-air processing in the medium pressure range.                                                           

Max. material quantity 5 g/m3 and max. grain size 2x2x2 mm.  Air temperature - 20°C to 70°C.

The fan has a high efficiency up to 85 % capacity.

Air quantities from 0.2 to 28 m3/s and total pressures up to 9000 Pa.

Construction
The fan is supplied in belt or direct driven design with varying outlet positions.

The fan consists of a heavy-duty casing, inlet cone, impeller and motor.

Direct driven fans are either provided with a flange motor mounted on the casing.

(D1) or - for larger types - with flange/ foot mounted motor mounted on a pedestal

(D2) Belt driven fans are supplied with a bearing pedestal and - for smaller types - with motor mounted above bearing pedestal (G5 and G5A) or on base plate together with the fan (G6).

Larger sizes in belt drive design are supplied as standard with motor mounted low or with a common
base frame for fan and motor (G3).

The impeller is an enclosed impeller with backward curved blades, provided with inlet opening in the front plate of the impeller.

The fans are available with 4 impeller sizes with corresponding inlet openings in the front plate of the impeller and diameters on the inlet plate. Thus a large number of combinations of the ratio between air quantities and pressure capacities can be obtained.

Impeller sizes
The ratio between the opening size in the front late and impeller diameter is part of the fan, e.g. R063-315 where R states the impeller type, the figure 63 indicates the size of the impeller and the figure 315 relates to the diameter of the inlet cone.

Materials & Surface Treatment
Casing and pedestal: Steel 37-2
Impeller: DOMEX 390
Paint: Grey, RAL 7000 (fan)
Motor: (various)
G-models: belt guard
Paint: Blue, RAL 5015