High Temperature Pneumatic Butterfly Valve , Wafer Style Butterfly Valve
Pneumatic Butterfly Valve introduction:
1. Nominal Diameter:DN15~300
2. Pressure range:0~10~16bar
3. Working Temperature:-20~+135℃
4. Body:Gray cast-iron,Ductile cast-iron,Cast steel,Stainless steel
5. Sealing:NBR,EPDM,FRM,PTFE
6. Disc:Ductile cast-iron,Cast steel,Stainless steel,Aluminum alloy
7. Feature:Double bubble&Zero leakage
8. Medium:Drinking water,sewage,high purity water,seawater,air
9. Connection:Wafer,fianged
10. Control Feature:On-off type,regulated type
11. Manufacturing Standard:GB,ISO,ANSI,DIN
Pneumatic Butterfly Valve Features:
⊙ Adjust tightness
Rubber sealing ring and disc can adjust tightness or softness of sealing with clamping ring, it insures
best performance of adjusting the compression of sealing.
⊙ Sealing reliable
Body and disc made of ductile iron which promote the impact resistance and pressure-bearing
capacity, sealing ring made of rubber and valve seat’s sealing surface is conical shaped, make the
sealing capacity more reliable.
⊙ Excellent corrosion protection
Inside electrostatic epoxy resin power coating or vitreous enamel(upon request), outside electrostatic
epoxy resin power coating.
⊙ Reliable health nature
Epoxy resin power is up to the health standard.
Mail part & material
Body, Disc: GGG50 with internal and external epoxy resin coating
Stems: 1Cr17Ni12Mo2Ti, Stainless steel min.13%Cr
Bushing :Bronze CuAI10Fe3
Seal ring, O-ring: NBR, EPDM or FPM
Technical Specification
- Nominal diameter:150～2600mm
- Nominal pressure:1.0/1.6/2.5Mpa
- Strength testing pressure:1.5/2.4/3.75Mpa
- Sealing testing pressure:1.1/1.76/2.75Mpa
Executive standard
|
Design standard
|
DIN3354
|
|
Face to face
|
DIN3202 or BS 5155
|
|
Flange end
|
DIN 2501
|
|
Test & inspection
|
DIN 3230 or GB/T 13927
|
|
Working temperature
|
NBR<80℃; EPDM<120℃; FPM<160℃
|
Main external and connection dimension
1.0MPa mm
|
DN
|
L
|
H1
|
H2
|
H3
|
Flange dimensions comply with DIN 2501
|
|
long type
|
short type
|
O
|
C
|
g
|
f
|
b
|
n-d
|
|
150
|
210
|
140
|
226
|
165
|
|
285
|
240
|
212
|
3
|
19
|
8-23
|
|
200
|
230
|
152
|
255
|
192
|
|
340
|
295
|
268
|
3
|
20
|
8-23
|
|
250
|
250
|
165
|
293
|
227
|
|
395
|
350
|
320
|
3
|
22
|
12-23
|
|
300
|
270
|
178
|
326
|
260
|
|
445
|
400
|
370
|
4
|
24.5
|
12-23
|
|
350
|
290
|
190
|
368
|
314
|
|
505
|
460
|
430
|
4
|
24.5
|
16-23
|
|
400
|
310
|
216
|
423
|
346
|
634
|
565
|
515
|
482
|
4
|
24.5
|
16-28
|
|
450
|
330
|
222
|
455
|
385
|
666
|
615
|
565
|
532
|
4
|
25.5
|
20-28
|
|
500
|
350
|
229
|
506
|
422
|
728
|
670
|
620
|
585
|
4
|
26.5
|
20-28
|
|
600
|
390
|
267
|
568
|
490
|
790
|
780
|
725
|
685
|
5
|
30
|
20-31
|
|
700
|
430
|
292
|
632
|
550
|
854
|
895
|
840
|
800
|
5
|
32.5
|
24-31
|
|
800
|
470
|
318
|
692
|
615
|
924
|
1015
|
950
|
905
|
5
|
35
|
24-34
|
|
900
|
510
|
330
|
815
|
678
|
1098
|
1115
|
1050
|
1005
|
5
|
37.5
|
28-34
|
|
1000
|
550
|
410
|
880
|
743
|
1163
|
1230
|
1160
|
1110
|
5
|
40
|
28-37
|
|
1200
|
630
|
470
|
1024
|
860
|
1307
|
1455
|
1380
|
1330
|
5
|
45
|
32-40
|
|
1400
|
710
|
530
|
1210
|
1010
|
1350
|
1675
|
1590
|
1535
|
5
|
46
|
36-43
|
|
1600
|
790
|
600
|
1340
|
1140
|
1480
|
1915
|
1820
|
1760
|
5
|
49
|
40-49
|
|
1800
|
870
|
670
|
1460
|
1360
|
1640
|
2115
|
2020
|
1960
|
5
|
52
|
44-49
|
|
2000
|
950
|
760
|
1660
|
1485
|
1800
|
2325
|
2230
|
2170
|
5
|
55
|
48-49
|
1.6MPa mm
|
DN
|
L
|
H1
|
H2
|
H3
|
Flange dimensions comply with DIN 2501
|
|
long type
|
short type
|
O
|
C
|
g
|
f
|
b
|
n-d
|
|
150
|
210
|
140
|
226
|
165
|
|
285
|
240
|
212
|
3
|
19
|
8-23
|
|
200
|
230
|
152
|
255
|
192
|
|
340
|
295
|
268
|
3
|
20
|
12-23
|
|
250
|
250
|
165
|
293
|
227
|
|
405
|
355
|
320
|
3
|
22
|
12-28
|
|
300
|
270
|
178
|
326
|
260
|
|
460
|
410
|
378
|
4
|
24.5
|
12-28
|
|
350
|
290
|
190
|
368
|
314
|
|
520
|
470
|
438
|
4
|
26.5
|
16-28
|
|
400
|
310
|
216
|
423
|
346
|
634
|
580
|
525
|
490
|
4
|
28
|
16-31
|
|
450
|
330
|
222
|
455
|
385
|
666
|
640
|
585
|
550
|
4
|
30
|
20-31
|
|
500
|
350
|
229
|
506
|
422
|
728
|
715
|
650
|
610
|
4
|
31.5
|
20-34
|
|
600
|
390
|
267
|
568
|
490
|
790
|
840
|
770
|
725
|
5
|
36
|
20-37
|
|
700
|
430
|
292
|
632
|
550
|
854
|
910
|
840
|
795
|
5
|
39.5
|
24-37
|
|
800
|
470
|
318
|
692
|
615
|
924
|
1025
|
950
|
900
|
5
|
43
|
24-40
|
|
900
|
510
|
330
|
815
|
678
|
1098
|
1125
|
1050
|
1000
|
5
|
46.5
|
28-40
|
|
1000
|
550
|
410
|
880
|
743
|
1163
|
1255
|
1170
|
1115
|
5
|
50
|
28-43
|
|
1200
|
630
|
470
|
1024
|
860
|
1307
|
1485
|
1390
|
1330
|
5
|
57
|
32-49
|
|
1400
|
710
|
530
|
1210
|
1010
|
1350
|
1685
|
1590
|
1530
|
5
|
60
|
36-49
|
|
1600
|
790
|
600
|
1340
|
1140
|
1480
|
1930
|
1820
|
1750
|
5
|
65
|
40-56
|
2.5MPa mm
|
DN
|
L
|
H1
|
H2
|
H3
|
Flange dimensions comply with DIN 2501
|
|
long type
|
short type
|
O
|
C
|
g
|
f
|
b
|
n-d
|
|
150
|
210
|
140
|
226
|
165
|
|
300
|
250
|
211
|
3
|
20
|
8-28
|
|
200
|
230
|
152
|
255
|
192
|
|
360
|
310
|
274
|
3
|
22
|
12-28
|
|
250
|
250
|
165
|
293
|
227
|
|
425
|
370
|
330
|
3
|
24.5
|
12-31
|
|
300
|
270
|
178
|
326
|
260
|
|
485
|
430
|
390
|
4
|
27.5
|
16-31
|
|
350
|
290
|
190
|
368
|
314
|
|
555
|
490
|
450
|
4
|
30
|
16-34
|
|
400
|
310
|
216
|
423
|
346
|
634
|
620
|
550
|
500
|
4
|
32
|
16-37
|
|
450
|
330
|
222
|
455
|
385
|
666
|
670
|
600
|
560
|
4
|
34.5
|
20-37
|
|
500
|
350
|
229
|
506
|
422
|
728
|
730
|
660
|
610
|
4
|
36.5
|
20-37
|
|
600
|
390
|
267
|
568
|
490
|
790
|
845
|
770
|
720
|
5
|
42
|
20-40
|
|
700
|
430
|
292
|
632
|
550
|
854
|
960
|
875
|
820
|
5
|
46.5
|
24-43
|
|
800
|
470
|
318
|
692
|
615
|
924
|
1085
|
990
|
930
|
5
|
51
|
24-49
|
|
900
|
510
|
330
|
815
|
678
|
1098
|
1185
|
1090
|
1028
|
5
|
55.5
|
28-49
|
|
1000
|
550
|
410
|
880
|
743
|
1163
|
|
|
|
5
|
|
|
|
1200
|
630
|
470
|
1024
|
860
|
1307
|
|
|
|
5
|
|
|
|
1400
|
710
|
530
|
1210
|
1010
|
1350
|
|
|
|
5
|
|
|
|
1600
|
790
|
600
|
1340
|
1140
|
1480
|
|
|
|
5
|
|
|
Wafer Rubber Seated Butterfly Valves
|
DN
(mm)
|
PN
(MPa)
|
Connection dimensions(mm)
|
|
L
|
D
|
D1
|
Zφd
|
|
40
|
1.0/1.6
|
43
|
145
|
110
|
4-18
|
|
50
|
43
|
165
|
125
|
4-18
|
|
65
|
46
|
185
|
145
|
4-18
|
|
80
|
46
|
200
|
160
|
4-18/8-18
|
|
100
|
52
|
220
|
180
|
8-18
|
|
125
|
56
|
250
|
210
|
8-18
|
|
150
|
56
|
285
|
240
|
8-22
|
|
200
|
60
|
340
|
295
|
8-22/12-22
|
|
250
|
68
|
395/405
|
350/355
|
12-22
|
|
300
|
78
|
445/460
|
400/410
|
12-22
|
|
350
|
1.0
|
78
|
505
|
460
|
16-22
|
|
400
|
102
|
565
|
515
|
16-26
|
|
450
|
114
|
615
|
565
|
20-26
|
|
500
|
127
|
670
|
620
|
20-26
|
|
600
|
154
|
780
|
725
|
20-30
|
|
700
|
165
|
895
|
840
|
24-30
|
|
800
|
190
|
1015
|
950
|
24-33
|
|
900
|
203
|
1115
|
1050
|
28-33
|
|
1000
|
216
|
1230
|
1160
|
28-39
|
|
1200
|
254
|
1455
|
1380
|
32-39
|
|
1200
|
0.6/0.25
|
254
|
1400/1375
|
1340/1320
|
32-34/32-30
|
|
1400
|
279
|
1620/1575
|
1560/1620
|
36-34/36-30
|
|
1600
|
318
|
1820/1785
|
1760/1730
|
40-34/40-30
|
|
1800
|
356
|
2045/1985
|
1970/1930
|
44-41/44-30
|
|
2000
|
406
|
2265/2185
|
2180/2130
|
48-48/48-30
|
Product Advantages:
1) Small in size and light in weight and maintaince.
It can be mounted whereever needed.
2) Simple, compact structure, quick 90 degree on-off operation.
3) Disc has two-way bearing, perfect seal, without leakage under
the pressure test.
4) Flow curve tending to straight-line. Excellent regulation performance.
5) Various kinds of materials, applicable to different medium.
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