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
3/4 - 1/2	26.7	21.3	29	29
1 - 1/2	33.4	21.3	38	38
1 - 3/4	33.4	26.7	38	38
1.1/4 - 1/2	42.2	21.3	48	48
1.1/4 - 3/4	42.2	26.7	48	48
1.1/4 - 1	42.2	33.4	48	48
1.1/2 - 1/2	48.3	21.3	57	57
1.1/2 - 3/4	48.3	26.7	57	57
1.1/2 - 1	48.3	33.4	57	57
1.1/2 - 1.1/4	48.3	42.2	57	57
2 - 3/4	60.3	26.7	64	44
2 - 1	60.3	33.4	64	51
2 - 1.1/4	60.3	42.2	64	57
2 - 1.1/2	60.3	48.3	64	60
2.1/2 - 1	73	33.4	76	57
2.1/2 - 1.1/4	73	42.2	76	64
2.1/2 - 1.1/2	73	48.3	76	67
2.1/2 - 2	73	60.3	76	70
3 - 1.1/4	88.9	42.2	86	70
3 - 1.1/2	88.9	48.3	86	73
3 - 2	88.9	60.3	86	76
3 - 2.1/2	88.9	73	86	83
3.1/2 - 1.1/2	101.6	48.3	95	79
3.1/2 - 2	101.6	60.3	95	83
3.1/2 - 2.1/2	101.6	73	95	89
3.1/2 - 3	101.6	88.9	95	92
4 - 1.1/2	114.3	48.3	105	86
4 - 2	114.3	60.3	105	89
4 - 2.1/2	114.3	73	105	95
4 - 3	114.3	88.9	105	98
4 - 3.1/2	114.3	101.6	105	102

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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