High Pressure Centrifugal Fans

All of our centrifugal fans are produced in carbon steel which is protected from corrosion by painting for cataphoresis with two-component polyurethane enamel RAL 7045.

The standard arrangements for direct coupled fans are:

• Arrangement 4: Direct coupling. The impeller is connected directly on the shaft of the B3 mounted motor that is supported by the pedestal. Maximum air temperature 100°C. With cooling fan up to 220°C.
• Arrangement 5: Direct coupling. The impeller set directly on the shaft of the B5 mounted motor supported by a disc fixed on the side of the case.
• Arrangement 8: Joint coupling. The fan has a support and motor mounted on a chair outside the air circuit. Maximum air temperature 100°C. With cooling fan up to 300°C
Our standard belt driven arrangements are as follows:
• Arrangement 1: Fan coupling with belts. Support mounted on seat outside the air circuit. Bare shaft without transmission and without motor. Maximum air temperature 100 ° C. With cooling fan up to 300 ° C.
• Arrangement 9: Fan coupling with belts. Support and transmission mounted on seats outside the air circuit. Motor supported by a flag fixed on the side of the chair. Maximum air temperature 100 ° C. With cooling fan up to 300 ° C.
• Arrangement 12: Fan coupling with belts. Support and transmission mounted on seats outside the air circuit. Motor and fan supported by a foundation frame. Maximum air temperature 100 ° C. With cooling fan up to 300 ° C.For applications requiring up to 4500C, please enquire for more solutions.
Our standard motors of 2, 4, 6 poles with high efficiency three-phase power supply 230/400V 50Hz up to size 132 and 400/690V 50Hz for larger sizes. Degree of protection IP55, class F.

Single Inlet Single Width (SISW) and Double Inlet Double Width (DIDW) low pressure centrifugal fans in direct or belt driven arrangements with either forward curved on backward curved impellers.
The range is summarised below

FR/N (single inlet)
Low pressure (up to 250mm w g) high capacity (up to 90m3/s) clean air. Backward curved impellers. Fan size up to 2000mm

TFR/N (roof fan)
Low pressure (up to 100mm w g) capacity (up to 5m3/s) clean air. Backward curved impellers. Fan size up to 710mm

DFR/N (double inlet)
Low pressure (up to 250mm w g) high capacity (up to 130m3/s) clean air. Backward curved impellers. Fan size up to 2000mm

CFR/N (double inlet)
Low pressure (up to 250mm w g) high capacity (up to 130m3/s) hot air up to 3000C. Backward curved impellers. Fan size up to 2000mm

FS/P (single inlet)
Low pressure (up to 150mm w g) high capacity (up to 25m3/s) dusty or clean air
Forward curved multi-vane impellers. Fan size up to 1000mm

Ferrari offer bifurcated fans which are ideal for applications involving exhausting or recirculation of gases and hot air. Bifurcated fans are specially designed for applications where it is required to keep the motor out of the airstream. This could be due to temperature or the type of fumes or gases being used.