Type instruction
(1)The axial roof ventilator have 9 models of Φ300~ Φ1300mm 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 roof ventilator 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 .
Ⅲ. It is applied to provide high pressure while low air volume.
b.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.
c. 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.
d. Stable operation, long-term service: little inertia, precise balance, stable operation make the fan's performance standard higher than its competitors.
e. 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 .
f.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.
II. 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 for the roof fans.
|
DWT-ⅠAXIAL TYPE
|
|
NO.
|
SPEED(rpm)
|
AIR FLOW RATE(m3/h)
|
PRESSURE(Pa)
|
POWER(kW)
|
NOISE
dB(A)
|
|
3
|
2850
|
3300
3000
2600
|
181
206
232
|
0.37
|
66
|
|
1450
|
1650
1560
1450
|
62
66
72
|
0.06
|
56
|
|
4
|
2850
|
7450
6350
5300
|
193
230
250
|
0.75
|
69
|
|
1450
|
5700
5400
4580
|
176
184
190
|
0.55
|
67
|
|
960
|
3820
2860
1880
|
80
86
92
|
0.25
|
60
|
|
5
|
1450
|
8000
7000
5600
|
135
162
191
|
0.55
|
68
|
|
960
|
7000
6700
6400
|
113
122
131
|
0.37
|
63
|
|
720
|
6000
5000
4100
|
88
92
96
|
0.25
|
58
|
|
6
|
1450
|
15000
14000
13000
|
232
251
267
|
1.5
|
73
|
|
960
|
11000
10000
9100
|
168
183
193
|
1.1
|
67
|
|
720
|
8500
8000
7600
|
111
127
136
|
0.55
|
62
|
|
7
|
960
|
17500
15000
12500
|
165
201
212
|
1.5
|
69
|
|
720
|
12000
11000
9200
|
141
163
177
|
0.75
|
63
|
|
560
|
9300
8500
7200
|
83
94
102
|
0.55
|
59
|
|
8
|
960
|
27000
25000
23000
|
175
207
228
|
2.2
|
72
|
|
|
|
NO.
|
SPEED(rpm)
|
AIR FLOW RATE(m3/h)
|
PRESSURE(Pa)
|
POWER(kW)
|
NOISE
dB(A)
|
|
8
|
720
|
20000
18000
16000
|
129
154
167
|
1.5
|
66
|
|
560
|
15750
14500
12250
|
78
96
121
|
0.75
|
63
|
|
9
|
960
|
34500
29000
24000
|
202
236
256
|
3.0
|
76
|
|
720
|
32000
28000
24000
|
126
156
177
|
2.2
|
73
|
|
560
|
24000
21500
18600
|
102
118
126
|
1.1
|
67
|
|
10
|
960
|
50000
45000
39000
|
251
286
317
|
5.5
|
81
|
|
720
|
46000
40000
35000
|
141
167
183
|
3.0
|
76
|
|
560
|
28000
24000
20000
|
111
125
133
|
1.5
|
69
|
|
11.2
|
960
|
56900
49500
40400
|
253
296
322
|
5.5
|
82
|
|
720
|
52500
45000
40000
|
138
169
183
|
3.0
|
77
|
|
560
|
32000
28000
25000
|
111
128
142
|
1.5
|
71
|
|
12
|
720
|
57000
50000
44000
|
196
205
209
|
5.5
|
73
|
|
560
|
42000
37500
33000
|
126
134
148
|
3
|
67
|
|
14
|
720
|
76700
68000
57500
|
250
261
268
|
7.5
|
77
|
|
480
|
69000
60000
51500
|
159
169
175
|
4
|
69
|
|
|
|
NO.
|
SPEED (rpm)
|
AIR FLOW RATE(m3/h)
|
PRESSURE(Pa)
|
POWER
(kW)
|
NOISE
dB(A)
|
|
14
|
720
|
76700
68000
57500
|
250
261
268
|
7.5
|
77
|
|
480
|
69000
60000
51500
|
159
169
175
|
4
|
69
|
|
15
|
720
|
88500
80000
70000
|
195
203
208
|
7.5
|
78
|
|
480
|
74750
65000
55800
|
149
158
165
|
4.0
|
70
|
|
16
|
720
|
107500
95000
81500
|
235
248
256
|
11
|
79
|
|
320
|
61000
52500
42600
|
131
152
167
|
4.0
|
70
|
|
18
|
720
|
129300
112500
96450
|
261
276
287
|
15
|
80
|
|
480
|
96250
86150
74300
|
122
136
143
|
5.5
|
71
|
|
|
|
NO.
|
SPEED(rpm)
|
AIR FLOW RATE(m3/h)
|
PRESSURE(Pa)
|
POWER(kW)
|
NOISE
dB(A)
|
|
18
|
320
|
79150
71550
62500
|
115
126
148
|
4.0
|
66
|
|
20
|
480
|
168700
150000
131000
|
215
234
247
|
15
|
78
|
|
320
|
125500
110000
95200
|
118
121
132
|
5.5
|
68
|
|
22
|
480
|
201600
180000
165000
|
193
205
210
|
15
|
79
|
|
320
|
155000
120000
119500
|
135
142
155
|
7.5
|
71
|
|
24
|
480
|
220800
198500
176500
|
212
228
246
|
18.5
|
84
|
|
320
|
175000
162000
135000
|
148
164
188
|
11
|
77
|
|
220
|
140000
120000
85000
|
150
160
171
|
7.5
|
70
|
|
|
Please contact us and get detailed Technical parameters and Drawings.
We could Design and Produce the Marine fan,Industrial Fan,and Other Ventilation Equipment according to your detailed requirement !
Marine Axial Flow Fan
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