JIS 16K

LTB

DRILLING DATA

JIS 16K

NOMINAL PIPE SIZE

OUTSIDE 
DIAMETER

THICKNESS
OF FLANGE MIN

THINKNESS
BLIND MIN

BOSSES
LENGTH
SOH,SWLJ

WELD NECK
LENGTH

PITCH
CIRCLE
DIAMETER

NUMBER OF BOLT HOLES

BOLT HOLE DIAMETER

NOMINAL PIPE SIZE

MM

INCH

C

T

T1

L

L1

PCD

#

H

MM

INCH

10

3/8

90

12

12

16

31

65

4

15

10

3/8

15

1/2

95

12

12

16

32

70

4

15

15

1/2

20

3/4

100

14

14

20

34

75

4

15

20

3/4

25

1

125

14

14

20

36

90

4

19

25

1

32

1 1/4

135

16

16

22

39

100

4

19

32

1 1/4

40

1 1/2

140

16

16

24

39

105

4

19

40

1 1/2

50

2

155

16

16

24

40

120

8

19

50

2

65

2 1/2

175

18

18

26

46

140

8

19

65

2 1/2

80

3

200

20

20

28

49

160

8

23

80

3

90

3 1/2

210

20

20

30

50

170

8

23

90

3 1/2

100

4

225

22

22

34

56

185

8

23

100

4

125

5

270

22

22

34

60

225

8

25

125

5

150

6

305

24

24

38

69

260

12

25

150

6

200

8

350

26

26

40

73

305

12

25

200

8

250

10

430

28

28

44

81

380

12

27

250

10

300

12

480

30

30

48

88

430

16

27

300

12

350

14

540

34

34

52

104

480

16

33

350

14

400

16

605

38

38

60

115

540

16

33

400

16

450

18

675

40

40

64

126

605

20

33

450

18

500

20

730

42

42

68

128

660

20

33

500

20

550

22

795

44

44

70

135

720

20

39

550

22

600

24

845

46

46

74

141

770

24

39

600

24

650

26

895

48

N/A

77

N/A

820

24

39

650

26

700

28

960

50

N/A

80

N/A

875

24

42

700

28

750

30

1020

52

N/A

83

N/A

935

24

42

750

30

800

32

1085

54

N/A

86

N/A

990

24

48

800

32

850

34

1135

56

N/A

89

N/A

1040

24

48

850

34

900

36

1185

58

N/A

93

N/A

1090

28

48

900

36

1000

40

1320

62

N/A

99

N/A

1210

28

56

1000

40