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
40 - 18	1016	457	749	622
40 - 20	1016	508	749	635
40 - 22	1016	559	749	648
40 - 24	1016	610	749	660
40 - 26	1016	660	749	673
40 - 28	1016	711	749	673
40 - 30	1016	762	749	698
40 - 32	1016	813	749	711
40 - 34	1016	864	749	724
40 - 36	1016	914	749	737
40 - 38	1016	965	749	749
42 - 26	1067	660	762	698
42 - 28	1067	711	762	698
42 - 30	1067	762	762	711
42 - 32	1067	813	762	711
42 - 34	1067	864	762	711
42 - 36	1067	914	762	711
42 - 38	1067	968	762	711
42 - 40	1067	1016	762	711
42 - 16	1067	406.4	762	635
42 - 18	1067	457	762	648
42 - 20	1067	508	762	660
42 - 22	1067	559	762	660
42 - 24	1067	610	762	660

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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