This fan adopts advanced frontward open system, butterfly type,with two semicircle shutter doors, wind
resistance is small,good air-tightness and high efficiency
For the cone part,adopt new design,plug type connection,not need many bolts and nuts for tightening as
befor.Intensity of labor is reduced,also improve aesthetic results of fan
The belt tensioner device made of aluminum-magnesium alloy,non-deforming,long service life.This device make
the belt inside tight up,effective for avoiding the belt distortions in reverse direction,so prolong the belt time,saving cost
When the two semicircle shutter doors close, the rubber sealing ring make good airtightness.In different
condition,not run all the fan,the air could pass through the space of stop fan,use this type fan,could avoid this problem.Ensure air pass through the evaporative cooling pads or air inlet only,so that greatly improve the fan efficiency,(as compared with different type of same size fan,improve efficiency 15-20%)
The fan motor installed to top left corner,effective protection of the motor,Avoid wind resistance.And the motor
panel connection is reasonable,fixing fan frame more stronger.
Technical Parameter
Model
Specification
Diameter
blades
Blades
Rotational
Speed
rpm
Motor
Rotational
Speed
rpm
air flow
m3/h
Total
Pressure
Pa
Noise
Db
Power
W
Voltage
V
Height
mm
Width
mm
Thickness
mm
DJF(e)-900 (35″)
750
630
1400
24000
65
≤65
370
380
900
900
930
DJF(e)-1100 (43″)
1000
600
1400
36000
70
≤65
750
380
1100
1100
1150
DJF(e)-1220 (48″)
1100
460
1400
41000
73
≤65
750
380
1220
1220
1200
DJF(e)-1380 (54″)
1250
439
1400
51020
80
≤65
1100
380
1380
1380
1300
DJF(e) series front shutter door (Butterfly cone fan)外形尺寸：
