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Product Name: Double Flange Concentric Type Butterfly Valve
Double Flange Concentric Type Butterfly Valve

Specification
Design standard: API609; EN593 etc
Face to Face: DIN3202-K1, EN558-1 20 Series; BS5155, MSS SP-67
Flange Drilling: DIN2501PN10/PN16; BS10-D; JIS10K; BS4504; ANSI125/150; AS2129 Table D/E; ASA125/150 etc.
Pressure test:  API 598
Size: 2"-48"
 
Application
This kind of butterfly valve is widely utilized in foodstuff,pharmacy,chemical industry etc.and industrial environmental protection, water treatment, high building,water supply and draian tubing line open or close or adjusting medium.

Materials
No.
Part Name
Material(1)
Material(2)
1
Body
A126B
?GG25
2
Bushing
B62
?B62
3
"O"ring
EPDM
?NBR
4
Stem
SS410
1.4201
5
Disc
SS316
1.4408
6
Seat
EPDM
NBR
7
Pin
SS316
1.4408
 
Dimensions
DN
A
B
C
D
d1
 F
D1
n-d0-
d
D4
d2
 d4
40
110
65
106
32
12.6
110
41
4- 19
150
50
65
4- 7
50
110
80
108
32
12.6
125
51
4- 19
165
50
65
4- 7
65
134
80
112
32
12.6
145
62.8
4-19
185
50
65
4- 7
80
131
95
114
32
12.6
160
77.3
8-19
200
50
65
4-7
100
150
114
127
32
15.77
180
102.5
8-19
220
70
90
4- 10
125
170
113
140
32
18.92
210
121.8
8-19
250
70
90
4- 10
150
180
139
140
32
18.92
240
154.2
8-23
285
70
90
4- 10
200
210
175
152
40
22.1
295
200.9
12-23
340
102
125
4- 12
250
245.5
203
165
40
28.45
355
248.9
12-28
405
102
125
4- 12
300
276
242
178
40
31.6
410
299.9
12-28
460
102
125
4- 12
350
328
250
190
45
31.6
470
331.7
16-28
520
102
125
4-  12
400
376
277.4
216
51.2
33.15
515/525
387.5
16-30
580
140
175
4-  18
450
406.6
295.4
222
51.2
38
565/585
438.6
20-30
640
140
175
4- 18
500
448
330.6
229
64.2
41.15
650/620
489.6
20-33
715
140
175
4- 18
600
518
418
267
70.2
50.65
725/770
590.1
20-36
840
165
210
4-22

 

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