Nominal Diameter

Outside Diameter at Bevel

Center to End

Center to Center

Back to Face

45° EIbow

90° Elbow

  180° Elbow

B

A

O

K

DN

NPS

Series
A

Series
B

Long Radius

Long Radius

Short Radius

Long Radius

Short Radius

Long Radius

Short Radius

15

1/2

21.3

18

16

38

76

48

20

3/4

26.9

25

19

38

76

51

25

1

33.7

32

22

38

25

76

51

56

41

32

1.1/4

42.4

38

25

48

32

95

64

70

52

40

1.1/2

48.3

45

29

57

38

114

76

83

62

50

2

60.3

57

35

76

51

152

102

106

81

65

2.1/2

76.1(73)

76

44

95

64

190

127

132

100

80

3

88.9

89

51

114

76

229

152

159

121

90

3.1/2

101.6

57

133

89

267

178

184

140

100

4

114.3

108

64

152

102

305

203

210

159

125

5

139.7

133

79

190

127

381

254

262

197

150

6

168.3

159

95

229

152

457

305

313

237

200

8

219.1

219

127

305

203

610

406

414

313

250

10

273

273

159

381

254

762

508

518

391

300

12

323.9

325

190

457

305

914

610

619

467

350

14

355.6

377

222

533

356

1067

711

711

533

400

16

406.4

426

254

610

406

1219

813

813

610

450

18

457.2

478

286

686

457

1372

914

914

686

500

20

508

529

318

762

508

1524

1016

1016

762

550

22

559

343

838

559

1676

1118

1118

838

600

24

610

630

381

914

610

1829

1219

1219

914

650

26

660

406

991

660

1982

1320

700

28

711

720

438

1067

711

2134

1422

750

30

762

470

1143

762

2286

1524

800

32

813

820

502

1219

813

2438

1626

850

34

864

533

1295

864

2590

1728

900

36

914

920

565

1372

914

2744

1828

950

38

965

600

1448

965

2896

1930

1000

40

1016

1020

632

1524

1016

3048

2032

1050

42

1067

660

1600

1067

3200

2134

1100

44

1118

1120

695

1676

1118

3352

2236

1150

46

1168

727

1753

1168

3506

2336

1200

48

1220

1220

759

1829

1219

3658

2440

Note:The dimensions confom to GB/T12459,GB/T13401,ASME B16.9,SH3408,SH3409,HG/T21635,HG/T21631,SYT05010 standards