Fire Screen Air Vent Head
1. Application
Fire Screen Air Vent Head can prevent seawater, rain, fire and mosquitoes from entering the tank, and it can through inhalation and breathing to let the air pressure in the cabin close to the atmospheric pressure,so that the pressure is kept within the design pressure of the tank.
2. Material
(1) body & cover: cast steel
(2) the milk type connects: stainless steel
To meet the different needs of customers, the special materials can be customized according to one's request processing.
3. Features
(1) The product is of less weight, better ventilation and pretty outline.
(2) We could manufacture this product according to your flange requirement.
4. Specification
DN
Structure dimension
thickness
Lift range
h
Flange connection size
L
H
D
D1
D2
b
n
d0
50
160
170
6.5
17
135
103
84
15
6
15
140
110
90
16
4
14
65
190
200
22
155
123
104
14
6
15
160
130
110
16
4
14
80
225
205
7.5
27
170
138
118
14
8
15
190
150
128
18
4
18
100
245
235
8
190
158
138
14
8
15
210
170
148
18
4
18
125
290
265
44
215
183
164
14
10
15
240
200
178
20
8
18
150
367
300
9
53
240
208
190
14
12
15
265
225
202
20
8
18
200
463
367
60
295
264
247
15
12
15
320
280
258
22
8
18
250
550
460
78
365
327
306
16
14
17
375
335
312
24
12
18
300
650
580
10
85
430
386
360
19
14
21
440
395
365
24
12
22
350
770
680
95
480
436
410
20
16
21
490
445
415
26
12
22
5. IACS Certificate: NK, RINA, DNV, CCS, LR, BV, ABS.