Dimensions of butt-welding reducing tees and crosses ASME-B16.9
dimensions-of-butt-welding-reducing-tees-and-crosses-ASME-B16.9
NPS
OD, D
OD, D1
Center to End
Run, C
Outlet, M [Notes(1),(2)]
1/2 x1/4
21.3
13.7
25
25
1/2 x 3/8
21.3
17.3
25
25
3/4 x 3/8
26.7
17.3
29
29
3/4 x 1/2
26.7
21.3
29
29
1 x 1/2
33.4
21.3
38
38
1 x 3/4
33.4
26.7
38
38
1 ¼ x 1/2
42.2
21.3
48
48
1 ¼ x 3/4
42.2
26.7
48
48
1 ¼ x 1
42.2
33.4
48
48
1 ½ x 1/2
48.3
21.3
57
57
1 ½ x 3/4
48.3
26.7
57
57
1 ½ x 1
48.3
33.4
57
57
1 ½ x 1 ¼
48.3
42.2
57
57
2 x 3/4
60.3
26.7
64
44
2 x 1
60.3
33.4
64
51
2 x 1 ¼
60.3
42.2
64
57
2 x 1 ½
60.3
48.3
64
60
2 ½ x 1
73
33.4
76
57
2 ½ x 1 ¼
73
42.2
76
64
2 ½ x 1 ½
73
48.3
76
67
2 ½ x 2
73
60.3
76
70
3 x 1 ¼
88.9
42.2
86
70
3 x 1 ½
88.9
48.3
86
73
3 x 2
88.9
60.3
86
76
3 x 2 ½
88.9
73
86
83
3 ½ x 1 ½
101.6
48.3
95
79
3 ½ x 2
101.6
60.3
95
83
3 ½ x 2 ½
101.6
73
95
89
3 ½ x 3
101.6
88.9
95
92
4 x 1 ½
114.3
48.3
105
86
4 x 2
114.3
60.3
105
89
4 x 2 ½
114.3
73
105
95
4 x 3
114.3
88.9
105
98
4 x 3 ½
114.3
101.6
105
102
5 x 2
141.3
60.3
124
105
5 x 2 ½
141.3
73
124
108
5 x 3
141.3
88.9
124
111
5 x 3 ½
141.3
101.6
124
114
5 x 4
141.3
114.3
124
117
6 x 2 ½
168.3
73
143
121
6 x 3
168.3
88.9
143
124
6 x 3 ½
168.3
101.6
143
127
6 x 4
168.3
114.3
143
130
6 x 5
168.3
141.3
143
137
8 x 3 ½
219.1
101.6
178
152
8 x 4
219.1
114.3
178
156
8 x 5
219.1
141.3
178
162
8 x 6
219.1
168.3
178
168
10 x 4
273
114.3
216
184
10 x 5
273
141.3
216
191
10 x 6
273
168.3
216
194
10 x 8
273
219.1
216
203
12 x 5
323.8
141.3
254
216
12 x 6
323.8
168.3
254
219
12 x 8
323.8
219.1
254
229
12 x 10
323.8
273
254
241
14 x 6
355.6
168.3
279
238
14 x 8
355.6
219.1
279
248
14 x 10
355.6
273
279
257
14 x 12
355.6
323.8
279
270
16 x 6
406.4
168.3
305
264
16 x 8
406.4
219.1
305
273
16 x 10
406.4
273
305
283
16 x 12
406.4
323.8
305
295
16 x 14
406.4
355.6
305
305
18 x 8
457
219.1
343
298
18 x 10
457
273
343
308
18 x 12
457
323.8
343
321
18 x 14
457
355.6
343
330
18 x 16
457
406.4
343
330
20 x 8
508
219.1
381
324
20 x 10
508
273
381
333
20 x 12
508
323.8
381
346
20 x 14
508
355.6
381
356
20 x 16
508
406.4
381
356
20 x 18
508
457
381
368
22 x 10
559
273
419
359
22 x 12
559
323.8
419
371
22 x 14
559
355.6
419
381
22 x 16
559
406.4
419
381
22 x 18
559
457
419
394
22 x 20
559
508
419
406
24 x 10
610
273
432
384
24 x 12
610
323.8
432
397
24 x 14
610
355.6
432
406
24 x 16
610
406.4
432
406
24 x 18
610
457
432
419
24 x 20
610
508
432
432
24 x 22
610
559
432
432
26 x 12
660
323.8
495
422
26 x 14
660
355.6
495
432
26 x 16
660
406.4
495
432
26 x 18
660
457
495
444
26 x 20
660
508
495
457
26 x 22
660
559
495
470
26 x 24
660
610
495
483
28 x 12
711
323.8
521
448
28 x 14
711
355.6
521
457
28 x 16
711
406.4
521
457
28 x 18
711
457
521
470
28 x 20
711
508
521
483
28 x 22
711
559
521
495
28 x 24
711
610
521
508
28 x 26
711
660
521
521
30 x 10
762
273
559
460
30 x 12
762
323.8
559
473
30 x 14
762
355.6
559
483
30 x 16
762
406.4
559
483
30 x 18
762
457
559
495
30 x 20
762
508
559
508
30 x 22
762
559
559
521
30 x 24
762
610
559
533
30 x 26
762
660
559
546
30 x 28
762
711
559
546
32 x 14
813
355.6
597
508
32 x 16
813
406.4
597
508
32 x 18
813
457
597
521
32 x 20
813
508
597
533
32 x 22
813
559
597
546
32 x 24
813
610
597
559
32 x 26
813
660
597
572
32 x 28
813
711
597
572
32 x 30
813
762
597
584
34 x 16
864
406.4
635
533
34 x 18
864
457
635
546
34 x 20
864
508
635
559
34 x 22
864
559
635
572
34 x 24
864
610
635
584
34 x 26
864
660
635
597
34 x 28
864
711
635
597
34 x 30
864
762
635
610
34 x 32
864
813
635
622
36 x 16
914
406.4
673
559
36 x 18
914
457
673
572
36 x 20
914
508
673
584
36 x 22
914
559
673
597
36 x 24
914
610
673
610
36 x 26
914
660
673
622
36 x 28
914
711
673
622
36 x 30
914
762
673
635
36 x 32
914
813
673
648
36 x 34
914
864
673
660
38 x 18
965
457
711
597
38 x 20
965
508
711
610
38 x 22
965
559
711
622
38 x 24
965
610
711
635
38 x 26
965
660
711
648
38 x 28
965
711
711
648
38 x 30
965
762
711
673
38 x 32
965
813
711
686
38 x 34
965
864
711
698
38 x 36
965
914
711
711
40 x 18
1016
457
749
622
40 x 20
1016
508
749
635
40 x 22
1016
559
749
648
40 x 24
1016
610
749
660
40 x 26
1016
660
749
673
40 x 28
1016
711
749
673
40 x 30
1016
762
749
698
40 x 32
1016
813
749
711
40 x 34
1016
864
749
724
40 x 36
1016
914
749
737
40 x 38
1016
965
749
749
42 x 26
1067
660
762
698
42 x 28
1067
711
762
698
42 x 30
1067
762
762
711
42 x 32
1067
813
762
711
42 x 34
1067
864
762
711
42 x 36
1067
914
762
711
42 x 38
1067
968
762
711
42 x 40
1067
1016
762
711
42 x 16
1067
406.4
762
635
42 x 18
1067
457
762
648
42 x 20
1067
508
762
660
42 x 22
1067
559
762
660
42 x 24
1067
610
762
660
44 x 20
1118
508
813
686
44 x 22
1118
559
813
686
44 x 24
1118
610
813
698
44 x 26
1118
660
813
698
44 x 28
1118
711
813
698
44 x 30
1118
762
813
711
44 x 32
1118
813
813
711
44 x 34
1118
864
813
724
44 x 36
1118
914
813
724
44 x 38
1118
965
813
737
44 x 40
1118
1016
813
749
44 x 42
1118
1067
813
762
46 x 22
1168
559
851
724
46 x 24
1168
610
851
724
46 x 26
1168
660
851
737
46 x 28
1168
711
851
737
46 x 30
1168
762
851
737
46 x 32
1168
813
851
749
46 x 34
1168
864
851
749
46 x 36
1168
914
851
762
46 x 38
1168
965
851
762
46 x 40
1168
1016
851
775
46 x 42
1168
1067
851
787
46 x 44
1168
1118
851
800
48 x 22
1219
559
889
737
48 x 24
1219
610
889
737
48 x 26
1219
660
889
762
48 x 28
1219
711
889
762
48 x 30
1219
762
889
762
48 x 32
1219
813
889
787
48 x 34
1219
864
889
787
48 x 36
1219
914
889
787
48 x 38
1219
965
889
813
48 x 40
1219
1016
889
813
48 x 42
1219
1067
889
813
48 x 44
1219
1118
889
838
48 x 46
1219
1168
889
838
NOTE:Outlet dimension M for run sizes NPS 14 and larger is recommended but not required.
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Dimensions-of-butt-welding-reducing-tees-and-crosses-ASME-B16-9.pdf