• HOODED ROOF FAN/ ROOF AIR EXTRACTOR/ ROOF FAN
  • HOODED ROOF FAN/ ROOF AIR EXTRACTOR/ ROOF FAN
  • HOODED ROOF FAN/ ROOF AIR EXTRACTOR/ ROOF FAN
  • HOODED ROOF FAN/ ROOF AIR EXTRACTOR/ ROOF FAN

HOODED ROOF FAN/ ROOF AIR EXTRACTOR/ ROOF FAN

Material: FRP
Usage: for Manufacture
Flow Direction: Axial Flow
Pressure: Medium Pressure
Certification: RoHS, UR, ISO, CE
Transport Package: Wood Cast
Samples:
US$ 200/Piece 1 Piece(Min.Order)
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Basic Info.

Model NO.
OFS-9001
Specification
0.75kw
Trademark
OFS
Origin
China
HS Code
8414809090
Production Capacity
5000PCS/Month

Product Description

The OFS' Hooded roof fans extract heat, smoke, dust or fumes from all types of buildings including factories & warehouses. Used in conjunction with coolers the hooded roof fan helps in the lowering of temperatures during the hotter months also .
 

Type instruction

(1)The axial roof fans have 17 models of Φ300~ Φ1800mm with the diameter varies fromΦ300 to Φ1000mm of 9 models. We can provide other models for the clients' different requirement.

(2) The structure of the fans refers to the whole installation drawing. This series of fans consist of impellers, ducts, rain cover, driving components, loose-leaf air doors and safety net.

I. Characteristics

Various models, large application scope: 2 models are available according to different pressures, air flow and noise requirement:a. Axial roof fans: model DWT-Iis for medium and low pressure, large volume condition. Its design can be changed into dual-reversible type with the same efficiency (national patent)

b. Centrifugal roof fan: two models: DWT-II and DWT-III. It is applied to provide high pressure while low air volume.

High-efficiency, low-noise: This series uses CAD software, after optimizing design and research, its design has been rewarded patent of utility model and national outstanding patent. Its design adopts different rotate speeds, angles and impellers with the same diameter to satisfy different conditions. In this way, the fans match with the whole system and save energy and bring down noise.

Light, high-strength, corrosion-resistant: The impeller has different material types for various mediums, which encompasses ABC (engineering plastics), FRP (glass fiber reinforced plastics) and aluminum alloy sheet. The centrifugal fans are applied for high pressure conditions and the surface of impellers is galvanized & plastic sprayed, lowering its weight and enhancing its corrosive resistance. 

4. Stable operation, long-term service: little inertia, precise balance, stable operation make the fan's performance standard higher than its competitors. 

Large applying scope: This series fans can be made into explosion-proof, retardant, anti-aging type, etc., for ventilation of the conditions of flammable, explosive and corrosive air .

Elegant appearance: The rain cover is made of FRP with external surface of imported resin film. Its curve is smooth, elegant and practical. It can also be modified by plastic sprayed (PVC) after galvanization.    

7. Applying condition: The medium shall not exceed 60°C. No adhesive drifts, no exceeding 100 mg/m3 dust in the air. As for the high temperature medium, we provide fire-fighting exhaust fans (national patent) for the roof fans.

 

NO. SPEED(rpm) AIR FLOW RATE(m3/h) PRESSURE(Pa)
3 2850 3300
3000
2600
181
206
232
1450 1650
1560
1450
62
66
72
4 2850 7450
6350
5300
193
230
250
1450 5700
5400
4580
176
184
190
960 3820
2860
1880
80
86
92
5 1450 8000
7000
5600
135
162
191
960 7000
6700
6400
113
122
131
720 6000
5000
4100
88
92
96
6 1450 15000
14000
13000
232
251
267
960 11000
10000
9100
168
183
193
720 8500
8000
7600
111
127
136
7 960 17500
15000
12500
165
201
212
720 12000
11000
9200
141
163
177
560 9300
8500
7200
83
94
102
8 960 27000
25000
23000
175
207
228

 
 

NO. SPEED(rpm) AIR FLOW RATE(m3/h) PRESSURE(Pa)
3 2850 3300
3000
2600
181
206
232
1450 1650
1560
1450
62
66
72
4 2850 7450
6350
5300
193
230
250
1450 5700
5400
4580
176
184
190
960 3820
2860
1880
80
86
92
5 1450 8000
7000
5600
135
162
191
960 7000
6700
6400
113
122
131
720 6000
5000
4100
88
92
96
6 1450 15000
14000
13000
232
251
267
960 11000
10000
9100
168
183
193
720 8500
8000
7600
111
127
136
7 960 17500
15000
12500
165
201
212
720 12000
11000
9200
141
163
177
560 9300
8500
7200
83
94
102
8 960 27000
25000
23000
175
207
228

 

 

 

 

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