Dimensions Butt Weld Reducing Tees ASME B16.9

OTHER DIAMETERS

1/2 - 4

5 - 16

18 - 26

28 - 32

34 - 38

40 - 42

44 - 48

NPS	O.D. D	O.D. D1	Center to End C	Center to End M
28 - 12	711	323.8	521	448
28 - 14	711	355.6	521	457
28 - 16	711	406.4	521	457
28 - 18	711	457	521	470
28 - 20	711	508	521	483
28 - 22	711	559	521	495
28 - 24	711	610	521	508
28 - 26	711	660	521	521
30 - 10	762	273	559	460
30 - 12	762	323.8	559	473
30 - 14	762	355.6	559	483
30 - 16	762	406.4	559	483
30 - 18	762	457	559	495
30 - 20	762	508	559	508
30 - 22	762	559	559	521
30 - 24	762	610	559	533
30 - 26	762	660	559	546
30 - 28	762	711	559	546
32 - 14	813	355.6	597	508
32 - 16	813	406.4	597	508
32 - 18	813	457	597	521
32 - 20	813	508	597	533
32 - 22	813	559	597	546
32 - 24	813	610	597	559
32 - 26	813	660	597	572
32 - 28	813	711	597	572
32 - 30	813	762	597	584

Dimensions are in millimeters unless otherwise indicated.
Wall thickness (t) must be specified by customer.

Dimensional Tolerances Reducing Tees ASME B16.9

Nominal Pipe Size	1/2 to 2.1/2	3 to 3.1/2	4	5 to 8	10 to 18	20 to 24	26 to 30	32 to 48
Outside Dia at Bevel (D)	+1.6 -0.8	1.6	1.6	+2.4 -1.6	+4 -3.2	+6.4 -4.8	+6.4 -4.8	+6.4 -4.8
Inside Dia at End	0.8	1.6	1.6	1.6	3.2	4.8	+6.4 -4.8	+6.4 -4.8
Center to End (C / M)	2	2	2	2	2	2	3	5
Wall Thk (t)	Not less than 87.5% of Nominal Wall Thickness

Dimensional tolerances are in millimeters unless otherwise indicated and are equal ± except as noted.

Note..
MSS SP-43 only covers stainless steel buttweld fittings made for use with Schedule 5S and 10S pipe and Stub Ends suitable for use with Schedule 40S pipe, as defined in ASME B36.19. The dimensions and dimensional tolerances defined in MSS SP-43 are substantially the same as those in ASME B16.9 specifications from NPS 1/2 - NPS 24. Except with regard to the outside diameter at the bevel.

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