JIS B 2220 16K SO Hub Flange

Nominal
Diametar
of Flangn

Cutside
Diamater
of Staei
Pipe

Inside
Diameter
of Flange
da

Sectional Dlmensions of Flange

Bolt Hole

Nomiral
Bot
Size

Weight(kg)

Qutstae
Dlameter
FlangeD

T

Dlam.ot Hub

Red
-ius

f

g

Bot Cirdle
Diameter

Number
of Boit
Holea

Hole
Dicmelar
h

SOP

BL

SOH

a

b

10
15

20

17.3
21.7

27.2

17.8
222

27.7

90
95

100

12
12
14

16
16
20

26

30
38

28

32

42

4

4
4

1

1
1

46
51

58

65

70

75

4

4

4

15

15

15

M12
M12
M12

0.52
0.57
0.73

0.54
0.61
0.79

0.52
0.58

0.75

25

34.0

34.5

125

14

20

46

50

4

67

90

4

19

M16

1.13

1.24

1.16

32

42.7

43.2

135

16

22

56

60

5

2

76

100

4

19

M16

1.48

1.68

1.53

40

48.6

49.1

140

16

24

62

66

5

2

81

105

4

19

M16

1.56

1.81

1.64

50
65
80

60.5
76.3
89.1

61.1

77.1
90.0

155
175
200

16

18

20

24

26

28

76

94
108

80

98
112

5

5
6

22
2

96

116

132

120
140
160

8

8

8

19 19 23

M16 M16
M20

2.5

1.8
3.5

3.1

2.3
4.5

1.83
2.58
3.66

(90)

101.6

102.6

210

20

30

120

124

6

2

145

170

8

23

M20

3.7

5.0

3.95

100

114.3

115.4

225

22

34

134

138

6

160

185

8

23

M20

4.5

6.3

4.94

125

139.8

141.2

270

22

34

164

170

6

22

195

225

B

25

M22

6.5

9.2

7.0

150

165.2

166.6

305

24

38

196

202

6

2

230

260

12

25

M22

8.7

12.8

9.62

200

216.3

218.0

350

26

40

244

252

6

2

275

305

12

25

M22

10.9

18.6

12.1

250

267.4

289.5

430

28

44

304

312

6

2

345

380

12

27

M24

18.0

30.6

20.0

300
350
400

318.5
355.6

406.4

321.0
358.1

409.0

480
540
605

30

34
38

48
52

60

354
398
446

304
408
456

8

8

10

3

3

3

395
440
495

430
480
540

16
16
16

33 27
33

M24
M303

M30x3

21.5
30.3
42.9

40.7

57.8

82.2

24.4
35.0
4B.2

450
500
(550)

457.2
508.0
558.8

460.0

511.0

562.0

675
730
75

40
42

64
68
70

504
558
612

514
588
622

10
10
10

3

3

3

560
615
670

605
660
720

20
20
20

33
33
39

M30x3
M30x3
M36 x3

55.1
65.1
77.9

107.6
133.1
164.1

619
73.25
88.1

600
(650)
700

609.6
660.4
711.2

613.0
684

715

845
895
960

46
48 50

74 77
80

666

704

754

676

726

776

10
10
10

3

5

5

720
770
820

770
820
875

24

24

24

39
39
42

M36 x 3
M36x3
M39x3

86.0
96.3
114.1

193.2
227.5
272.6

98.8
101.0
120.0

(750)
800
(850)

762.0

812.8

863.6

766
817
868

1020
1085
1135

52
54
56

83
86
89

806
865
916

832
885
936

10
10
10

5

5
5

880
930
980

935
990
1040

24

24
24

42

48
48

M39 x3
M45x3
M453

132.7
152.1
166.5

321.9
375.6
428.1

141.0
161.0
177.0

900
1000
1100

914.4
1016.0

1117.6

919
1021

1123

1185 1320
1420

58
62
66

93
99
105

968

1070
1180

986
1098
1200

10
12
12

5

5
5

1030
1140
1240

1090
1210
1310

28 28
32

48

56

56

M45x3
M52x3
M52 x3

178.1
235.3
267.9

481.8
536.0
784.0

191.0
230.0
269.0

1200
1300
1350

1219.2
1320.8
1371.6

1225
1326.0
1377.0

1530
1645
1700

70
74
76

112
~

1282
-

1302

12
-

5

5

5

1350
1450
1510

1420
1530
1590

32
32
32

56
62
62

M523

321.1
378.6
410.0

9724
11852
13038

348.0

1400

1422.4

1428.0

1765

78

5

1560

1640

36

62

436.0

1422.5

1500

1524.0

1529.0

1865

80

.-

5

1670

1750

36

62

496.4

1666.6