150#

Common
Dimensions

Drilling

Different
Dimensions

Approx. Weight

NominalPipe
Size

Dimensions
In

D

G

M

B

No.

L

K

J

E

C

F

V

A

H

N

O

T

U

R

Slip On,
Socketwelding, Threaded
Flanges

Welding Neck Flanges

Lap
Joint
Flanges

Blind
Flanges

1/2"

inch
mm

31/2
88.9

13/8
34.9

13/16
30.2

7/16
11.1

4

5/8
15.9

23/8
60.3

0.62
15.7

0.88
22.4

0.62
15.7

0.90
22.9

0.84
21.3

17/8
47.6

5/8
15.9

5/8
15.9

5/8
15.9

3/8
9.52

1/8
3.18

1
0.5

2
0.9

1
0.5

1
0.5

3/4"

inch
mm

37/8
98.4

11/16
42.9

11/2
38.1

1/2
12.7

1/8
3.18

2
0.9

2
0.9

2
0.9

2
0.9

1"

inch
mm

41/4
108

2
50.8

115/16
49.2

9/16
14.3

11/4"

inch
mm

45/8
117

21/2
63.5

25/16
58.7

5/8
15.9

4

5/8
15.9

31/2
88.9

1.38
35.1

1.70
43.2

1.38
35.1

1.72
43.7

1.66
42.2

21.4
57.2

13/16
20.6

13/16
20.6

13/16
20.6

9/16
14.3

3/16
4.76

3
1.4

3
1.4

3
1.4

3
1.4

11/2"

inch
mm

5
127

27/8
73.0

29/16
65.1

11/16
17.5

4

5/8
15.9

37/8
98.4

1.61
40.9

1.95
49.5

1.61
40.9

1.97
50.0

1.90
48.3

27/16
61.9

7/8
22.2

7/8
22.2

7/8
22.2

5/8
15.9

1/4
6.35

3
1.4

4
1.8

3
1.4

4
1.8

2"

inch
mm

6
152

35/8
92.1

31/16
77.8

3/4
19.0

4

3/4
19.0

43.4
121

2.07
52.6

2.44
62.0

2.07
52.6

2.46
62.5

2.38
60.5

21/2
63.5

1
25.4

1
25.4

1
25.4

11/16
17.5

5/16
7.94

5
2.3

6
2.7

5
2.3

5
2.3

21/2"

inch
mm

7
178

41/8
105

39/16
90.5

7/8
22.2

4

3/4
19.0

51/2
140

2.47
62.7

2.94
74.7

2.47
62.7

2.97
75.4

2.88
73.2

23/4
69.8

11/8
28.6

11/8
28.6

11/8
28.6

3/4
19.0

5/16
7.94

7
3.2

8
3.6

7
3.2

7
3.2

3"

inch
mm

71/2
190

5
127

41/4
108

15/16
23.8

4

3/4
19.0

6
152

3.07
78.0

3.57
90.7

3.07
78.0

3.60
91.4

3.50
88.9

23/4
69.8

13/16
30.2

13/16
30.2

13/16
30.2

13/16
20.6

3/8
9.52

8
3.6

10
4.5

8
3.6

9
4.1

31/2"

inch
mm

81/2
216

51/2
140

413/16
122

15/16
23.8

8

3/4
19.0

7
178

3.55
90.2

4.07
103

3.55
90

4.10
104

4.00
102

213/16
71.4

11/4
31.8

11/4
31.8

11/4
31.8

7/8
22.2

3/8
9.52

11
5.0

12
5.4

11
5.0

13
5.9

4"

inch
mm

9
229

63/16
157

55/16
135

15/16
23.8

8

3/4
19.0

71/2
190

4.03
102

4.57
116

4.03
102.4

4.60
117

4.50
114

3
76.2

15/16
33.3

15/16
33.3

15/16
33.3

15/16
23.8

7/16
11.1

13
5.9

15
6.8

13
5.9

17
7.7

5"

inch
mm

10
254

75/16
186

67/16
164

15/16
23.8

8

7/8
22.2

81/2
216

5.05
128

5.66
144

5.05
128.3

5.69
145

5.56
141

31/2
88.9

17/16
36.5

17/16
36.5

17/16
36.5

15/16
23.8

7/16
11.1

15
6.8

19
8.6

15
6.8

20
9.1

6"

inch
mm

11
279

81/2
216

79/16
192

1
25.4

8

7/8
22.2

91/2
241

6.07
154

6.72
171

6.07
154.2

6.75
171

6.62
168

31/2
88.9

19/16
39.7

19/16
39.7

19/16
39.7

11/16
27

1/2
12.7

19
8.6

24
10.9

19
8.6

26
11.8

8"

inch
mm

131/2
343

105/8
270

911/16
246

11/8
28.6

8

7/8
22.2

113/4
298

7.98
203

8.72
221

7.98
202.7

8.75
222

8.62
219

4
102

13/4
44.4

13/4
44.4

13/4
44.4

11/4
31.7

1/2
12.7

30
13.6

39
17.7

30
13.6

45
20.4

10"

inch
mm

16
406

123/4
324

12
305

13/16
30.2

12

1
25.4

141/4
362

10.02
255

10.88
276

10.02
25.45

10.92
277

10.75
273

4
102

115/16
49.2

115/16
49.2

115/16
49.2

115/16
33.3

1/2
12.7

43
19.5

52
23.6

43
19.5

70
31.8

12"

inch
mm

19
483

15
381

143/8
365

11/4
31.8

12

1
25.4

17
432

12.00
305

12.88
327

12
304.8

12.92
328

12.75
324

41/2
114

23/16
55.6

23/16
55.6

23/16
55.6

19/16
39.7

1/2
12.7

64
29.0

80
36.3

64
29.0

110
49.9

14"

inch
mm

21
533

161/4
413

153/4
400

13/8
34.9

12

11/8
28.6

183/4
476

13.25
336.5

14.14
359

13.25
336.5

14.18
360

14.00
356

5
127

21/4
57.2

31/8
79.4

21/4
57.2

15/8
41.3

1/2
12.7

90
41.0

110
50.0

105
47.6

140
63.5

16"

inch
mm

231/2
597

181/2
470

18
457

17/16
36.5

16

11/8
28.6

211/4
540

15.25
387

16.16
410

15.25
387

16.19
411

16.00
406

5
127

21/2
63.5

37/16
87.3

21/2
63.5

13/4
44.4

1/2
12.7

98
44.5

140
64.0

140
63.5

180
81.6

18"

inch
mm

25
635

21
533

197/8
505

19/16
39.7

16

11/4
31.8

223/4
578

17.25
438

18.18
462

17.25
438.1

18.20
462

18.00
457

51/2
140

211/16
68.3

313/16
96.8

211/16
68.3

115/16
49.2

1/2
12.7

130
59.0

150
68.0

160
72.6

220
99.8

20"

inch
mm

271/2
698

23
584

22
559

111/16
42.9

20

11/4
31.8

25
635

19.25
489

20.20
513

19.25
488.9

20.25
514

20.00
508

511/16
144

27/8
73.0

41/16
103

27/8
73.0

21/8
54

1/2
12.7

165
75.0

180
81.6

195
88.5

285
129

24"

inch
mm

32
813

271/4
692

261/8
664

17/8
47.6

20

13/8
34.9

291/2
749

23.25
590.5

24.25
616

23.25
590.5

24.25
616

24.00
610

6
152

31/4
82.6

43/8
111

31/4
82.6

21/2
63.5

1/2
12.7

220
99.8

260
118

275
125

430
195

26"

inch
mm

341/4
869.9

291/4
742.9

281/2
723.9

2
50.8

24

13/8
34.9

313/4
806.4

26.25
666.75

26.00
660.4

5
127.0

33/8
85.7

250
113

300
136

525
238

28"

inch
mm

361/2
927.1

311/4
793.7

303/4
781.0

21/16
52.4

28

13/8
34.9

34
863.6

28.25
717.55

28.00
711.2

51/10
128.6

37/16
87.3

285
129

315
143

620
281

30"

inch
mm

383/4
984.2

333/4
857.2

323/4
831.8

21/8
54.0

28

13/8
34.9

36
914.4

30.25
768.35

30.00
762.0

51/8
130.2

31/2
88.9

315
143

360
163

720
327

32"

inch
mm

413/4
1060.4

353/4
908.0

35
889.0

21/4
57.1

28

15/8
41.3

381/2
977.9

32.25
819.15

32.00
812.8

51/4
133.35

35/8
92.1

395
179

435
197

870
395

34"

inch
mm

433/4
1111.2

373/4
958.8

37
939.8

55/16
58.7

32

15/8
41.3

401/2
1028.7

34.25
869.95

34.00
863.6

55/16
134.9

311/16
93.7

420
190

465
211

990
449

36"

inch
mm

46
1168.4

401/4
1022.3

391/4
996.9

23/8
60.3

32

15/8
41.3

423/4
1085.8

36.25
920.75

36.00
914.4

93/8
136.5

33/4
95.2

480
218

520
236

1125
511