1、
Flange & Installation Dimensions of Grade PN1.0Mpa Type “A”,”LT” Concentric Butterfly Valve
Size
Dia of pipe
(do)
Dia of flange
(D)
Dia of center circls
(D1)
Inner Dia of flange
(D3)
Dia of projecting hole of flange (D4)
Number of bolt
( n)
Dia of bolt holes
2、 (d)
Flange thickness
(b*)
Mini thickness of pipe
(So*)
Dimension of valve
(B)
mm
inch
50
2”
57
165
125
59
50
4
17.5
22
3.5
42
65
2.5”
73
185
145
75
65
4
17.5
24
4
44.7
80
3”
89
200
160
91
80
4
17.5
24
4
45.2
100
4”
108
220
180
110
3、100
8
17.5
26
4
52.1
125
5”
133
250
210
135
125
8
17.5
28
4
54.4
150
6”
159
285
240
161
150
8
22
28
4.5
55.6
200
8”
219
340
295
221
209
8
22
30
6
60.6
250
10”
273
395
350
275
255
12
22
32
8
65.6
300
12”
325
445
400
327
308
12
22
32
8
7
4、6.5
350
14”
377
505
460
379
340
16
22
34
9
76.5
400
16”
426
565
515
429
405
16
26
38
9
86.5
450
18”
478
615
565
481
455
20
26
42
9
105.6
500
20”
529
670
620
532
505
20
26
48
9
137.8
600
24”
630
780
725
633
605
20
30
50
9
152
700
28”
720
5、
895
840
723
705
24
30
52
10
163
800
32”
820
1015
950
823
810
24
33
54
10
188
900
36”
920
1115
1060
923
900
28
33
56
10
203
1000
40”
1020
1230
1160
1023
1000
28
36
58
10
216
Flange & Installation Dimensions of Grade PN1.6Mpa Type “A”,”LT” Concentric Butte
6、rfly Valve
Size
Dia of pipe
(do)
Dia of flange
(D)
Dia of center circls
(D1)
Inner Dia of flange
(D3)
Dia of projecting hole of flange (D4)
Number of bolt
( n)
Dia of bolt holes
(d)
Flange thickness
(b*)
Mini thickness of pipe
(So*)
Dimension of
7、 valve
(B)
mm
inch
50
2”
57
165
125
59
50
4
17.5
22
3.5
42
65
2.5”
73
185
145
75
65
4
17.5
24
4
44.7
80
3”
89
200
160
91
80
8
17.5
24
4
45.2
100
4”
108
220
180
110
100
8
17.5
26
4
52.1
125
5”
133
250
210
135
125
8
17.5
28
4
54.4
1
8、50
6”
159
285
240
161
150
8
22
28
4.5
55.6
200
8”
219
340
295
221
209
12
22
30
6
60.6
250
10”
273
405
355
275
255
12
26
32
8
65.6
300
12”
325
460
410
327
308
12
26
32
8
76.5
350
14”
377
520
470
379
340
16
26
34
9
76.5
400
16”
426
580
52
9、5
429
405
16
30
38
9
86.5
450
18”
478
640
585
481
455
20
30
42
9
105.6
500
20”
529
715
650
532
505
20
33
48
9
137.8
600
24”
630
840
770
633
605
20
36
50
9
152
700
28”
720
910
840
723
705
24
36
52
10
163
800
32”
820
1025
950
823
810
24
36
54
10
188
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