Nominal Pipe Size

Center to End

Center to Center

Back to Back

45°Elbow

90°Elbow

Return

H

F

P

K

DN

NPS

LR

LR

SR

LR

SR

LR

SR

15
20
25

1/2
3/4
1

16
19
22

38
38
38

--
--
25

76
76
76

--
--
51

48
51
56

--
--
41

32
40
50

1 1/4
1 1/2
2

25
29
35

48
57
76

32
38
51

95
114
152

64
76
102

70
83
106

52
62
81

65
80
90

2 1/2
3
3 1/2

44
51
57

95
114
133

64
76
89

190
229
267

127
152
178

132
159
184

100
121
140

100
125
150

4
5
6

64
79
95

152
190
229

102
127
152

305
381
457

203
254
305

210
262
313

159
197
237

200
250
300

8
10
12

127
159
190

305
381
457

203
254
305

610
762
914

406
508
610

414
518
619

313
391
497

350
400
450

14
16
18

222
254
286

533
610
686

356
406
457

1067
1219
1372

711
813
914

711
813
914

533
610
686

500
550
600

20
22
24

318
343
381

762
838
914

508
559
610

1524
1676
1829

1016
1118
1219

1016
1118
1219

762
838
914

650
700
750

26
28
30

405
438
470

991
1067
1143

660
711
762

H of 11mm shall be furnished for 3/4" 45°Elbow, F of 29mm shall be furnished for 90°LR Elbow, P and K of 57mm and 43mm shall be furnished for 180°LR Elbow. at the manufacturer's option in ASME B16.9.
H of GB12459 for 45°Elbow is slightly different from the list number, when using, please refer to the standard and code.
In SH3408 for DN20, H of 11 mm is for 45°Elbow, F of 39mm is for 90°LR Elbow, P and K of 57mm and 43mm are for 180°LR Elbow.

800
850
900

32
34
36

502
533
565

1219
1295
1372

813
864
914

950
1000
1050

38
40
42

600
632
660

1448
1524
1600

965
1016
1067

1100
1150
1200

44
46
48

695
727
759

1676
1753
1829

1118
1168
1219