Industrial centrifugal fans - Selection criteria

GRUBER HERMANOS, S. A. offers full guidance for the selection of any kind of fan, whatever the application might be.
The fan design starts in the technical-sales department with the selection of the type of fan that better conforms to the volume and pressure data provided by the client.
Considering each application, the most suitable materials and designs must be selected according to the fan planned service and location in the plant.

These are some examples of fan characteristics depending on the applications for which the machine is intended:

FANS FOR ENERGETIC GASES :
Very strong design. Gas tight executions. ATEX non-spark executions.

FANS FOR CORROSIVE GASES :
Made of stainless steel. Rubber lined impeller and casing. Casing made with silica casting.

FANS FOR HOT GASES (Up to 900 °C) :
Supported at shaft level. Made of refractory steels. Oil lubricated and water cooled bearings.

FANS FOR FLUIDS WITH ABRASIVE DUST IN SUSPENSION :
Radial or backward curved blades. Made of abrasion resisting steels and fitted with liners of the same material in the areas of maximum wear.

FANS WITH HIGH PERIPHERAL SPEED :
For pressures up to 3000 mm.w.g. having only one compression stage. Made of special plate with high elastic limit.

FANS WITH SEVERAL COMPRESSION STAGES :
They can reach pressures up to 8000 mm.w.g.

Considering each application, the most suitable materials and designs must be selected according to the fan planned service.