Gamma Series - Vertical Discharge Centrifugal Fans
                                
                                
                                
                                    
                                
                                Description
                                
                                The Gamma Series of centrifugal roof units has been 
designed for use in commercial ducted exhaust applications. These compact and low profile units are fitted with birdmesh 
to prevent the entry of birds and vermin into the ducting 
or building. They are available in 12 sizes, extending from 
192 to 710mm diameter.
                                Typical Application
Exhaust air from a wide range of commercial applications 
such as factories, warehouses and workshops, change rooms, 
bulk goods retail outlets and assembly halls.
                                
                                 Features
 Robust, lightweight construction.
 Choice of speeds available.
 Compact, low profile design.
 Designed for vertical exhaust applications.
 Twin vertical discharge fan also available. Provides 100% standby capacity.
 Shutters are standard on twin fan units and an optional extra for single fan units. The pressure loss across the shutter has to be added to the system pressure before making selections.
 Can be mounted at angle up to 30°.
 Most 3-phase motors are 2-speed star/delta design.
 Supply air units can be supplied.
                                
                                Single Phase Models
| Product Code | Diameter [mm]
 | Speed [rps]
 | kW | Amps | Avg. dB(A)@ 3m
 | Max.Pressure [Pa] -Recom
 | Max.Volume [m3/sec]
 | 
|---|
|  | 190 | 41 | 0.07 | 0.3 | 47 | 248 | 0.12 | 
|  | 250 | 45 | 0.19 | 1.18 | 58 | 376 | 0.27 | 
|  | 190 | 23 | 0.03 | 0.16 | 39 | 78 | 0.07 | 
|  | 220 | 23 | 0.049 | 0.29 | 39 | 110 | 0.17 | 
|  | 250 | 23 | 0.072 | 0.37 | 42 | 136 | 0.25 | 
|  | 280 | 23 | 0.09 | 0.4 | 45 | 170 | 0.30 | 
|  | 310 | 22 | 0.14 | 0.7 | 48 | 209 | 0.37 | 
|  | 350 | 23 | 0.27 | 1.3 | 51 | 326 | 0.64 | 
|  | 400 | 21 | 0.43 | 2.4 | 54 | 418 | 0.96 | 
|  | 450 | 20 | 0.73 | 3.3 | 57 | 511 | 1.30 | 
|  | 500 | 23 | 1.42 | 6.3 | 61 | 617 | 1.88 | 
|  | 310 | 15 | 0.08 | 0.38 | 42 | 83 | 0.23 | 
|  | 350 | 15 | 0.07 | 0.32 | 43 | 135 | 0.42 | 
|  | 400 | 15 | 0.17 | 0.8 | 44 | 179 | 0.60 | 
|  | 450 | 15 | 0.3 | 1.4 | 46 | 231 | 0.98 | 
|  | 500 | 15 | 0.48 | 2.4 | 50 | 271 | 1.33 | 
|  | 560 | 14 | 0.66 | 3 | 54 | 315 | 1.77 | 
|  | 500 | 11 | 0.21 | 0.99 | 45 | 169 | 1.05 | 
|  | 560 | 11 | 0.35 | 1.65 | 47 | 186 | 1.41 | 
Three Phase Models
| Product Code | Diameter [mm]
 | Speed [rps]
 | kW | Amps | Avg. dB(A)@ 3m
 | Max.Pressure [Pa] -Recom
 | Max.Volume [m3/sec]
 | 
|---|
|  | 310 | 22 | 0.14 | 0.29 | 48 | 209 | 0.37 | 
|  | 350 | 23 | 0.275 | 0.63 | 51 | 326 | 0.64 | 
|  | 400 | 23 | 0.45 | 1.4 | 54 | 418 | 0.96 | 
|  | 450 | 23 | 0.77 | 1.47 | 57 | 511 | 1.30 | 
|  | 500 | 22 | 1.2 | 2.2 | 61 | 617 | 1.84 | 
|  | 560 | 19 | 1.7 | 3.3 | 65 | 710 | 2.63 | 
|  | 630 | 22 | 3.9 | 6.6 | 70 | 1068 | 3.91 | 
|  | 310 | 18 | 0.1 | 0.16 | 42 | 83 | 0.23 | 
|  | 350 | 19 | 0.2 | 0.34 | 43 | 135 | 0.42 | 
|  | 400 | 15 | 0.17 | 0.37 | 44 | 179 | 0.60 | 
|  | 450 | 15 | 0.44 | 1.2 | 46 | 231 | 0.93 | 
|  | 500 | 15 | 0.65 | 1.2 | 50 | 271 | 1.24 | 
|  | 560 | 15 | 0.65 | 1.4 | 54 | 315 | 1.69 | 
|  | 630 | 14 | 1.1 | 2.2 | 58 | 403 | 2.53 | 
|  | 710 | 14 | 1.95 | 3.6 | 61 | 501 | 3.53 | 
|  | 400 | 11 | 0.11 | 0.2 | 40 | 83 | 0.44 | 
|  | 450 | 11 | 0.15 | 0.5 | 43 | 155 | 0.75 | 
|  | 500 | 11 | 0.3 | 0.5 | 45 | 169 | 0.93 | 
|  | 560 | 12 | 0.44 | 0.8 | 47 | 186 | 1.19 | 
|  | 630 | 11 | 0.65 | 1.15 | 50 | 254 | 1.99 | 
|  | 710 | 11 | 0.66 | 2 | 53 | 227 | 2.66 | 
|  | 710 | 9 | 0.28 | 1.2 | 46 | 133 | 1.84 |