Reducing Tee Dimensions (ASME B16.9)

DN	NPS (Inches)	Outside Diameter Series A (mm)		Center to End (mm)
		D1	D2	C	M
15×15×15	1/2×1/2×1/2	21.3	21.3	25	25
15×15×10	1/2×1/2×3/8	21.3	17.3	25	25
20×20×20	3/4×3/4×3/4	26.9	26.9	29	29
25×25×25	1×1×1	33.7	33.7	38	38
32×32×32	1¼×1¼×1¼	42.4	42.4	48	48
40×40×40	1½×1½×1½	48.3	48.3	57	57
50×50×50	2×2×2	60.3	60.3	64	64
65×65×65	2½×2½×2½	73	73	76	76
80×80×80	3×3×3	88.9	88.9	86	86
100×100×100	4×4×4	114.3	114.3	105	105
125×125×125	5×5×5	141.3	141.3	124	124
150×150×150	6×6×6	168.3	168.3	143	143
200×200×200	8×8×8	219.1	219.1	178	178
250×250×250	10×10×10	273	273	216	216
300×300×300	12×12×12	323.9	323.9	254	254
350×350×350	14×14×14	355.6	355.6	279	279
400×400×400	16×16×16	406.4	406.4	305	305