Item name: ventilating butterfly valve
Product features: ventilation valve body using the same materials and processed into the sealing ring, the valve body material with suitable temperature and nominal pressure is less than 0.6MPa, suitable for general ventilation for regulating media flow in industry, metallurgy, environmental protection and other pipeline. Its main features are: 1, design novel, reasonable, unique structure, light weight, open and close quickly. 2, operating torque is small, easy to operate, labor-saving dexterity. 3, the use of materials to meet the low, medium and high temperature of different media and corrosive media. Handle worm gear drive flange type ventilation butterfly valve, worm gear flange type ventilation valve, worm gear drive flange type ventilation butterfly valve。
四、Ventilation butterfly valve DXH373X-16c. series connection dimensions：
|
Variety of materials
|
carbon steel
|
Low temperature carbon steel
|
Alloy steel
|
austenitic stainless steel
|
Cr Mo steel
|
|
Code
|
WCB
|
LCB
|
WC6orWC9
|
C5orC12
|
chromiumCr-18type、304、316
|
12CrMoV
|
|
Maximum temperature resistance
|
425℃
|
345℃
|
595℃
|
650℃
|
600℃
|
560℃
|
|
Minimum temperature resistance
|
-29℃
|
-46℃
|
-29℃
|
-29℃
|
-196℃
|
-40℃
|
|
Applicable operating temperature
|
≤425℃
|
≤345℃
|
≤595℃
|
≤650℃
|
≤600℃
|
≤560℃
|
五、Ventilation butterfly valves D 41W-0.5/2.5/6 C.P.R.V series connection dimensions：
|
Nominal diameter
|
The length of the structure(standard value)
|
Dimensions (reference values)
|
Connection dimension (standard value)
|
Reference weight（kg）
|
|
0.05MPa和0.25MPa
|
0.6MPa
|
|
millimeter
|
inch
|
L
|
H
|
H0
|
A
|
B
|
D
|
D1
|
D2
|
n-d
|
D
|
D1
|
D2
|
n-d
|
|
50
|
2
|
108
|
70
|
215
|
270
|
65
|
140
|
110
|
88
|
4-14
|
140
|
110
|
88
|
4-14
|
9
|
|
65
|
2 1/2
|
112
|
80
|
235
|
270
|
65
|
160
|
130
|
108
|
4-14
|
160
|
130
|
108
|
4-14
|
12
|
|
80
|
3
|
114
|
95
|
263
|
270
|
65
|
190
|
150
|
124
|
4-18
|
190
|
150
|
124
|
4-18
|
15
|
|
100
|
4
|
127
|
105
|
283
|
270
|
65
|
210
|
170
|
144
|
4-18
|
210
|
170
|
144
|
4-18
|
17
|
|
125
|
5
|
140
|
120
|
313
|
310
|
65
|
240
|
200
|
174
|
8-18
|
240
|
200
|
174
|
8-18
|
23
|
|
150
|
6
|
140
|
132
|
338
|
310
|
65
|
265
|
225
|
199
|
8-18
|
265
|
225
|
199
|
8-18
|
25
|
六、Ventilation butterfly valves D341W-0.5/2.5/6 C.P.R.V series connection dimensions：
|
Nominal diameter
|
The length of the structure(standard value)
|
Dimensions (reference values)
|
Connection dimension (standard value)
|
Reference weight（kg）
|
|
0.05MPa和0.25MPa
|
0.6MPa
|
|
millimeter
|
inch
|
L
|
H
|
H0
|
A
|
B
|
D
|
D1
|
D2
|
n-d
|
D
|
D1
|
D2
|
n-d
|
|
50
|
2
|
108
|
70
|
286
|
125
|
193
|
140
|
110
|
88
|
4-14
|
140
|
110
|
88
|
4-14
|
14
|
|
65
|
2 1/2
|
112
|
80
|
306
|
125
|
193
|
160
|
130
|
108
|
4-14
|
160
|
130
|
108
|
4-14
|
15
|
|
80
|
3
|
114
|
95
|
334
|
125
|
193
|
190
|
150
|
124
|
4-18
|
190
|
150
|
124
|
4-18
|
17
|
|
100
|
4
|
127
|
105
|
354
|
125
|
193
|
210
|
170
|
144
|
4-18
|
210
|
170
|
144
|
4-18
|
20
|
|
125
|
5
|
140
|
120
|
384
|
125
|
193
|
240
|
200
|
174
|
8-18
|
240
|
200
|
174
|
8-18
|
25
|
|
150
|
6
|
140
|
132
|
409
|
125
|
193
|
265
|
225
|
199
|
8-18
|
265
|
225
|
199
|
8-18
|
29
|
|
200
|
8
|
152
|
160
|
593
|
165
|
183
|
320
|
280
|
254
|
8-18
|
320
|
280
|
254
|
8-18
|
47
|
|
250
|
10
|
165
|
187
|
650
|
165
|
283
|
375
|
335
|
309
|
12-18
|
375
|
335
|
309
|
12-18
|
67
|
|
300
|
12
|
178
|
220
|
715
|
165
|
283
|
440
|
395
|
363
|
12-22
|
440
|
395
|
363
|
12-22
|
78
|
|
350
|
14
|
190
|
245
|
814
|
175
|
334
|
490
|
445
|
413
|
12-22
|
490
|
445
|
413
|
12-22
|
96
|
|
400
|
16
|
216
|
270
|
863
|
175
|
334
|
540
|
495
|
463
|
16-22
|
540
|
495
|
463
|
16-22
|
130
|
|
450
|
18
|
222
|
297
|
918
|
175
|
334
|
595
|
550
|
518
|
16-22
|
595
|
550
|
518
|
16-22
|
142
|
|
500
|
20
|
229
|
322
|
1016
|
210
|
425
|
645
|
600
|
568
|
20-22
|
645
|
600
|
568
|
20-22
|
191
|
|
600
|
24
|
267
|
377
|
1128
|
210
|
425
|
755
|
705
|
667
|
20-26
|
755
|
705
|
667
|
20-26
|
230
|
|
700
|
28
|
292
|
430
|
1233
|
210
|
425
|
860
|
810
|
772
|
24-26
|
860
|
810
|
772
|
24-26
|
250
|
|
800
|
32
|
318
|
487
|
1344
|
210
|
425
|
975
|
920
|
878
|
24-30
|
975
|
920
|
878
|
24-30
|
320
|
|
900
|
36
|
330
|
537
|
1560
|
320
|
620
|
1075
|
1020
|
978
|
24-30
|
1075
|
1020
|
978
|
24-30
|
410
|
|
1000
|
40
|
410
|
587
|
1660
|
320
|
620
|
1175
|
1120
|
1078
|
28-30
|
1175
|
1120
|
1078
|
28-30
|
510
|
|
1200
|
48
|
470
|
687
|
1890
|
320
|
620
|
1375
|
1320
|
1280
|
32-30
|
1405
|
1340
|
1295
|
32-33
|
720
|
|
1400
|
56
|
530
|
760
|
2670
|
575
|
714
|
1575
|
1520
|
1480
|
36-30
|
1630
|
1560
|
1510
|
36-36
|
1270
|
|
1600
|
64
|
600
|
895
|
2810
|
575
|
714
|
1790
|
1730
|
1690
|
40-30
|
1830
|
1760
|
1710
|
40-36
|
1730
|
|
1800
|
72
|
670
|
995
|
3020
|
575
|
714
|
1990
|
1930
|
1890
|
44-30
|
2045
|
1970
|
1918
|
44-39
|
2750
|
|
2000
|
80
|
760
|
1095
|
3220
|
656
|
810
|
2190
|
2130
|
2090
|
48-30
|
2265
|
2180
|
2125
|
48-42
|
3050
|
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