Reducing Tee

Butt Welding Pipe Fittings

Size: 1/2"-80"/DN15-DN2000

Material: Carbon Steel, Stainless Steel, Alloy Steel

Standard: ASME/ANSI B16.9, B16.11, B16.28, JIS B2311, B2312, B2312, B2316 ASTM A403 MSS SP-43, SP-83, SP-97

Type: Seam Or Seamless

End: beveled end

Surface: Black Paint/Rust-proof Oil/Hot Dipped Galvanized

Wall Thickness: SCH10/10S, SCH20/20S, STD, SCH40/40S, XS, SCH80,SCH100, SCH120, SCH140, SCH160, XXS etc.(for ANSI),SGP(for JIS)

Connection: Welding

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Introduction

Butt weld reducing tee is a buttweld fitting used to branch pipeline.If the branch pipe size is smaller than main pipe,then a reduding .Generally the branch bore size is 2/3 smaller than main pipe bore size,if the size reduction is larger than 2/3,then it is better to add a weldolet or other reinforced branch connection,to keep smooth flow .The reducing cross has almost the same property as equal tee,but can branch pipeline to 4 way.Same as other butt welding fittings,butt welding tee is also seamless up to 24 inches, welded for tee sizes above 24 inches.Buttweld reducing tees are manufactured according to ASME B16.9 (carbon and alloy) and MSS SP 43 (stainless steel and nickel alloy).

ASME B16.9: Reducing Tee

Reducing-tee

Dimensions of Reducing Tees and Reducing Crosses - ASME B16.9

NPS	OD at Bevel		Center to End
NPS	Run	Outlet	Run, C	Outlet, M
1/2 x 3/8	21.3	17.3	25	25
1/2 x 1/4	21.3	13.7	25	25
3/4 x 1/2	26.7	21.3	29	29
3/4 x 3/8	26.7	17.3	29	29
1 x 3/4	33.4	26.7	38	38
1 x 1/2	33.4	21.3	38	38
1-1/4 x 1	42.2	33.4	48	48
1-1/4 x 3/4		26.7		48
1-1/4 x 1/2		21.3		48
1-1/2 x 1-1/4	48.3	42.2	57	57
1-1/2 x 1		33.4		57
1-1/2 x 3/4		26.7		57
1-1/2 x 1/2		21.3		57
2 x 1-1/2	60.3	48.3	64	60
2 x 1-1/4		42.2		57
2 x 1		33.4		51
2 x 3/4		26.7		44
2-1/2 x 2	73	60.3	76	70
2-1/2 x 1-1/2		48.3		67
2-1/2 x1-1/4		42.2		64
2-1/2 x 1		33.4		57
3 x 2-1/2	88.9	73	86	83
3 x 2		60.3		76
3 x 1-1/2		48.3		73
3 x 1-1/4		42.2		70
3-1/2 x 3	101.6	88.9	95	92
3-1/2 x 2-1/2		73		89
3-1/2 x 2		60.3		83
3-1/2 x 1-1/2		48.3		79
4 x 3-1/2	114.3	101.6	105	102
4 x 3		88.9		98
4 x 2-1/2		73		95
4 x 2		60.3		89
4 x 1-1/2		48.3		86
5 x 4	141.3	114.3	124	117
5 x 3-1/2		101.6		114
5 x 3		88.9		111
5 x 2-1/2		73		108
5 x 2		60.3		105
6 x 5	168.3	141.3	143	137
6 x 4		114.3		130
6 x 3-1/2		101.6		127
6 x 3		88.9		124
6 x 2-1/2		73		121
8 x 6	219.1	168.3	178	168
8 x 5		141.3		162
8 x 4		114.3		156
8 x 3-1/2		101.6		152
10 x 8	273	219.1	216	203
10 x 6		168.3		194
10 x 5		141.3		191
10 x 4		114.3		184
12 x 10	323.8	273	254	241
12 x 8		219.1		229
12 x 12 x 6		168.3		219
12 x 5		141.3		216
14 x 12	355.6	323.8	279	270
14 x 10		273		257
14 x 8		219.1		248
14 x 6		168.3		238
16 x 14	406.4	355.6	305	305
16 x 12		323.8		295
16 x 10		273		283
16 x 8		219.1		273
16 x 6		168.3		264
18 x 16	457	406.4	343	330
18 x 14		355.6		330
18 x 12		323.8		321
18 x 10		273		308
18 x 8		219.1		298
20 x 18	508	457	381	368
20 x 16		406.4		356
20 x 14		355.6		356
20 x 12		323.8		346
20 x 10		273		333
20 x 8		219.1		324
22 x 20	559	508	419	406
22 x 18		457		394
22 x 16		406.4		381
22 x 14		355.6		381
22 x 12		323.8		371
22 x 10		272		359
24 x 22	610	559	432	432
24 x 20		508		432
24 x 18		457		419
24 x 16		406.4		406
24 x 14		355.6		406
24 x 12		323.8		397
24 x 10		273		384
26 x 24	660	610	495	483
26 x 22		559		470
26 x 20		508		457
26 x18		457		444
26 x 16		406.4		432
26 x 14		355.6		432
26 x 12		323.8		422
28 x 26	711	660	521	521
28 x 24		610		508
28 x 22		559		495
28 x 20		508		483
28 x 18		457		470
28 x 16		406.4		457
28 x 14		355.6		457
28 x 12		323.8		448
30 x 28	762	711	559	546
30 x 26		660		546
30 x 24		610		533
30 x 22		559		521
30 x 20		508		508
30 x 18		457		495
30 x 16		406.4		483
30 x 14		355.6		483
30 x 12		323.8		473
30 x 10		273		460
32 x 30	813	762	597	584
32 x 28		711		572
32 x 26		660		572
32 x 24		610		559
32 x 22		559		546
32 x 20		508		533
32 x 18		457		521
32 x 16		406.4		508
32 x 14		355.6		508
34 x 32	864	813	635	622
34 x 30		762		610
34 x 28		711		597
34 x 26		660		597
34 x 24		610		584
34 x 22		559		572
34 x 20		508		559
34 x 18		457		546
34 x 16		406.4		533
36 x 34	914	864	673	660
36 x 32		813		648
36 x 30		762		635
36 x 28		711		622
36 x 26		660		622
36 x 24		610		610
36 x 22		559		597
36 x 20		508		584
36 x 18		457		572
36 x 16		406.4		559
38 x 36	965	914	711	711
38 x 34		864		698
38 x 32		813		686
38 x 30		762		673
38 x 28		711		648
38 x 26		660		648
38 x 24		610		635
38 x 22		559		622
38 x 20		508		610
38 x 18		457		597
40 x 38	1016	965	749	749
40 x 36		914		737
40 x 34		864		724
40 x 32		813		711
40 x 30		762		698
40 x 28		711		673
40 x 26		660		673
40 x 24		610		660
40 x 22		559		648
40 x 20		508		635
40 x 18		457		622
42 x 40	1067	1016	762	711
42 x 38		968		711
42 x 36		914		711
42 x 34		864		711
42 x 32		813		711
42 x 30		762		711
42 x 28		711		698
42 x 26		60		698
42 x 24		610		660
42 x 22		559		660
42 x 20		508		660
42 x 18		457		648
42 x 16		406.4		635
44 x 42	1118	1067	813	762
44 x 40		1016		749
44 x 38		965		737
44 x 36		914		724
44 x 34		864		724
44 x 32		813		711
44 x 30		762		711
44 x 28		711		698
44 x 26		660		698
44 x 24		610		698
44 x 22		559		686
44 x 20		508		686
46 x 44	1168	1118	851	800
46 x 42		1067		787
46 x 40		1016		775
46 x 38		965		762
46 x 36		914		762
46 x 34		864		749
46 x 32		813		949
46 x 30		762		737
46 x 28		711		737
46 x 26		660		737
46 x 24		610		724
46 x 22		559		724
48 x 46	1219	1168	889	838
48 x 44		1118		838
48 x 42		1067		813
48 x 40		1016		813
48 x 38		965		813
48 x 36		914		787
48 x 34		864		787
48 x 32		813		787
48 x 30		762		762
48 x 28		711		762
48 x 26		660		762
48 x 24		610		737
48 x 22		559		737