Centrifugal Fans Brochure - Flextraction.co.uk
Centrifugal Fans Brochure - Flextraction.co.uk
Centrifugal Fans Brochure - Flextraction.co.uk
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CJBR<br />
Ventilation units with sandwich-panel soundproofing and linear<br />
airflow between the inlet and outlet.<br />
Fan:<br />
• Galvanised sheet steel structure with thermal insulation and soundproofing.<br />
• Impeller with backward-curved blades made from galvanised sheet steel<br />
• Outlet mounting on any side of the box possible, during installation<br />
Motor:<br />
• Single-phase motors with IE-2 efficiency,<br />
except lower powers 0.75 kW<br />
• Class F motors with ball bearings, IP55 protection.<br />
• Three-phase 230/400V.-50Hz. (up to 5.5CV.) and 400/690V.-50Hz.<br />
(power over 5.5CV.)<br />
• Max. temperature of air for transport: -20ºC.+ 60ºC.<br />
Highly-efficient<br />
soundproofing<br />
Finish:<br />
• Anti<strong>co</strong>rrosive galvanized sheet steel.<br />
On request:<br />
• With circular outlet via the TAC accessory<br />
• With two speed motors<br />
Order <strong>co</strong>de<br />
CJBR 2063 4T<br />
CJBR: Ventilation units with sandwichpanel<br />
soundproofing<br />
Impeller size<br />
Number of T=Three-phase<br />
motor poles<br />
4=1400 r/min. 50 Hz<br />
6=900 r/min. 50 Hz<br />
Technical characteristics<br />
Model<br />
Speed<br />
(r/min)<br />
Maximum admissible<br />
current (A)<br />
400V<br />
Installed<br />
Power<br />
(kW)<br />
Maximum<br />
Airflow<br />
(m 3 /h)<br />
Sound Approx. weight<br />
pressure level (Kg)<br />
dB(A)<br />
CJBR-1240-4T 1430 2.00 0.75 4400 62 79<br />
CJBR-1850-4T 1420 3.50 1.50 6700 70 82<br />
CJBR-2056-4T 1430 4.90 2.20 9500 72 129<br />
CJBR-2056-6T 935 2.20 0.75 6500 62 123<br />
CJBR-2263-4T 1460 12.50 5.50 16700 74 179<br />
CJBR-2263-6T 950 3.00 1.10 9000 64 135<br />
CJBR-2071-4T 1460 21.00 10.50 25050 83 220<br />
CJBR-2071-6T-3 940 5.60 2.20 12500 68 149<br />
CJBR-2071-6T-5.5 970 11.00 4.00 16800 70 196<br />
CJBR-2880-6T 970 11.00 4.00 17080 71 194<br />
A<strong>co</strong>ustic features<br />
The specified values are determined ac<strong>co</strong>rding to free field measurements of sound levels in dB(A) at an equivalent distance of twice the fan’s<br />
span plus the impeller’s diameter, with a minimum of 1.5 m.<br />
Sound power Lw(A) spectrum in dB(A) via frequency band in Hz.<br />
Model 63 125 250 500 1000 2000 4000 8000<br />
CJBR-1240-4 47 61 67 70 70 71 61 50<br />
CJBR-1850-4 66 72 77 78 81 80 73 68<br />
CJBR-2056-4 67 73 79 79 83 83 75 68<br />
CJBR-2056-6 57 63 69 69 73 73 65 58<br />
CJBR-2263-4 74 79 85 87 85 82 75 67<br />
Model 63 125 250 500 1000 2000 4000 8000<br />
CJBR-2263-6 61 67 72 73 77 76 69 62<br />
CJBR-2071-4 80 81 89 92 95 96 92 78<br />
CJBR-2071-6-3 65 71 76 77 81 80 73 66<br />
CJBR-2071-6-5.5 66 65 80 79 83 83 72 61<br />
CJBR-2880-6 68 74 79 80 84 83 76 69<br />
98
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