Medium Pressure Forward Curved Centrifugal Fans

Medium pressure forward curved centrifugal fans with their motors out of the airstream are suitable for a wide range of general medium pressure and ducted applications. Whilst multi-vane impellers are for clean air, its temperature can be relatively high because the motor itself is situated in ambient conditions. With the motors being of standard industrial type, their protection class is normally IP54 or IP55.

With no restriction on motor size, the fan performance can be high for given impeller dimensions.

Speed control is possible by variable frequency inverter drive, but not generally by voltage variation. The usual consequence of trying to vary the voltage is non-linear control, pressure dependent speed, and motor over-heating. Some models require a minimum system pressure/maximum flow rate to prevent motor overheating.

High pressure centrifugal fans and those suitable for material handling are also available on request.

Features

Rolling steel sheet housing
Completely joined housing
Galvanised steel sheet simple inlet forward curved impeller
Epoxy powder finishing coat
Standard asynchronous squirrel cage motor with IP 55 protection and class F insulation
Manufactured with standard voltages: 230v 50Hz single phase motors and 230/400V 50Hz in three phase motors
Standard position LG 270

Applications

Designed for inline installations including industrial applications, extraction or projected air, cooling of machinery and parts, clean air transportation and many other applications.

Maximum working temperature; carried air – 130 degrees Celsius, ambient air – single Ph 50 degrees and three Ph 60 degrees.

Specials Available On Request

Also available on request within the medium pressure centrifugal fan range:

60Hz and special voltages
2 speed motors
Fans for air working temperatures of up to 250 degrees
Fans provided with cooling disk for high temperatures
Various handing positions aside from the standard LG 270 position

Single Inlet Medium Pressure Forward Curved Centrifugal Fans

Model Product Code & Curve		Phase	Impeller Diameter (mm)	Motor Size (kW)	RPM Motor	imax 230V	imax 400V	Weight Motor (kg)
MB 12/5 M4 0,08kW	Medium Pressure Centrifugal Fan	1	92,5	0,08	1370	0.09	-	5
MB 12/5 T4 0,08kW	Medium Pressure Centrifugal Fan	3	92,5	0,08	1400	0,035	0,2	5
MB 14/5 M4 0,08kW	Medium Pressure Centrifugal Fan	1	115	0,08	1370	0,9	-	6
MB 14/5 T4 0,08kW	Medium Pressure Centrifugal Fan	3	115	0,08	1400	0,035	0,2	5
MB 16/6 M4 0,08kW	Medium Pressure Centrifugal Fan	1	127		1370	0,9	-	7,5
MB 16/6 T4 0,08kW	Medium Pressure Centrifugal Fan	3	127	0,08	1400	0,035	0,2	5
MB 20/8 M2 1,1kW	Medium Pressure Centrifugal Fan	1	161	1,1	1400	7,45	-	19
MB 20/8 T2 1,1kW	Medium Pressure Centrifugal Fan	3	161	1,1	2800	4,05	2,33	16
MB 22/9 T2 1,1kW	Medium Pressure Centrifugal Fan	3	180	1,1	2800	4,05	2,33	16
MB 25/10 T2 2,2kW	Medium Pressure Centrifugal Fan	3	203	2,2	2840	7,97	4,58	25
MB 25/10 T2 3kW	Medium Pressure Centrifugal Fan	3	203	3	2880	10,3	5,92	38.5
MB 25/10 T4 0,75kW	Medium Pressure Centrifugal Fan	3	203	0,75	1410	2,83	1,63	15
MB 28/11 T4 1,1kW	Medium Pressure Centrifugal Fan	3	228	1,1	1450	4,33	2,49	23

For more information on our range of industrial fans suitable for process, machine cooling, biomass and other industrial applications, visit Casals, contact us on 01782 349 430 or email sales@axair-fans.co.uk.

Alternatively, download our MB Medium Pressure brochure below: