Butt Weld Reducing Tee

Butt Weld Reducing tee (Reducer Tee): The branch diameter is smaller than the main diameter. The reducing tee allows for a permanent connection of three separate tubes of varying sizes.

1. Butt Weld Reducing Tee Specification

Product:	Butt Weld Tee, Reducing Tee
Size:	1/8″ NB TO 48″ NB
	Wall Thickness: Sch.5S to Sch.XXS
Material:	carbon steel ASTM, A234, WPB / A420, WPL3 / A420, WPL6 / MSS-SP-75, WPHY 42 / 46 / 52 / 56 / 60 / 65 / 70
	Stainless Steel ASTM, A403, WP304 / 304L / 304H / 316 / 316L / 317 / 317L / 321 / 310 / 347 / 904L
	ALLOY STEEL ASTM A234 WP1 / WP5 / WP9 / WP11 / WP22 / WP91
	Duplex stainless steel: UNS31803, SAF2205, UNS32205, UNS31500

2. Butt Weld Reducing Tee Standard

ASTM A234	Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
ASTM A420	Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service
ASTM A403	Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

3. Dimensions of Butt Weld Reducing Tee

NPS1	NPS2	OD1	OD2	C	M
1/2	3/8	21.3	17.3	25	25
1/2	1/4	21.3	13.7	25	25
3/4	1/2	26.7	21.3	29	29
3/4	3/8	26.7	17.3	29	29
1	3/4	33.4	26.7	38	38
1	1/2	33.4	21.3	38	38
1-1/4	1	42.2	33.4	48	48
1-1/4	3/4	42.2	26.7	48	48
1-1/4	1/2	42.2	21.3	48	48
1-1/2	1-1/4	48.3	42.2	57	57
1-1/2	1	48.3	33.4	57	57
1-1/2	3/4	48.3	26.7	57	57
1-1/2	1/2	48.3	21.3	57	57
2	1-1/2	60.3	48.3	64	60
2	1-1/4	60.3	42.2	64	57
NPS1	NPS2	OD1	OD2	C	M
2	1	60.3	33.4	64	51
2	3/4	60.3	26.7	64	44
2-1/2	2	73.0	60.3	76	70
2-1/2	1-1/2	73.0	48.3	76	67
2-1/2	1-1/4	73.0	42.2	76	64
2-1/2	1	73.0	33.4	76	57
3	2-1/2	88.9	73.0	86	83
3	2	88.9	60.3	86	76
3	1-1/2	88.9	48.3	86	73
3	1-1/4	88.9	42.2	86	70
3-1/2	3	101.6	88.9	95	92
3-1/2	2-1/2	101.6	73.0	95	89
3-1/2	2	101.6	60.3	95	83
3-1/2	1-1/2	101.6	48.3	95	79
4	3-1/2	114.3	101.6	105	102
NPS1	NPS2	OD1	OD2	C	M
4	3	114.3	88.9	105	98
4	2-1/2	114.3	73.0	105	95
4	2	114.3	60.3	105	89
4	1-1/2	114.3	48.3	105	86
5	4	141.3	114.3	124	117
5	3-1/2	141.3	101.6	124	114
5	3	141.3	88.9	124	111
5	2-1/2	141.3	73.0	124	108
5	2	141.3	60.3	124	105
6	5	168.3	141.3	143	137
6	4	168.3	114.3	143	130
6	3-1/2	168.3	101.6	143	127
6	3	168.3	88.9	143	124
6	2-1/2	168.3	73.0	143	121
8	6	219.1	168.3	178	168
NPS1	NPS2	OD1	OD2	C	M
8	5	219.1	141.3	178	162
8	4	219.1	114.3	178	156
8	3-1/2	219.1	101.6	178	152
10	8	273.0	219.1	216	203
10	6	273.0	168.3	216	194
10	5	273.0	141.3	216	191
10	4	273.0	114.3	216	184
12	10	323.8	273.0	254	241
12	8	323.8	219.1	254	229
12	6	323.8	168.3	254	219
12	5	323.8	141.3	254	216
14	12	355.6	323.8	279	270
14	10	355.6	273.0	279	257
14	8	355.6	219.1	279	248
14	6	355.6	168.3	279	238
NPS1	NPS2	OD1	OD2	C	M
16	14	406.4	355.6	305	305
16	12	406.4	323.8	305	295
16	10	406.4	273.0	305	283
16	8	406.4	219.1	305	273
16	6	406.4	168.3	305	264
18	16	457.0	406.4	343	330
18	14	457.0	355.6	343	330
18	12	457.0	323.8	343	321
18	10	457.0	273.0	343	308
18	8	457.0	219.1	343	298
20	18	508.0	457.0	381	368
20	16	508.0	406.4	381	356
20	14	508.0	355.6	381	356
20	12	508.0	323.8	381	346
20	10	508.0	273.0	381	333
NPS1	NPS2	OD1	OD2	C	M
20	8	508.0	219.1	381	324
22	20	559.0	508.0	419	406
22	18	559.0	457.0	419	394
22	16	559.0	406.4	419	381
22	14	559.0	355.6	419	381
22	12	559.0	323.8	419	371
22	10	559.0	273.0	419	359
24	22	610.0	559.0	432	432
24	20	610.0	508.0	432	432
24	18	610.0	457.0	432	419
24	16	610.0	406.4	432	406
24	14	610.0	355.6	432	406
24	12	610.0	323.8	432	397
24	10	610.0	273.0	432	384
26	24	660.0	610.0	495	483
NPS1	NPS2	OD1	OD2	C	M
26	22	660.0	559.0	495	470
26	20	660.0	508.0	495	457
26	18	660.0	457.0	495	444
26	16	660.0	406.4	495	432
26	14	660.0	355.6	495	432
26	12	660.0	323.8	495	422
28	26	711.0	660.0	521	521
28	24	711.0	610.0	521	508
28	22	711.0	559.0	521	495
28	20	711.0	508.0	521	483
28	18	711.0	457.0	521	470
28	16	711.0	406.4	521	457
28	14	711.0	355.6	521	457
28	12	711.0	323.8	521	448
30	28	762.0	711.0	559	546
NPS1	NPS2	OD1	OD2	C	M
30	26	762.0	660.0	559	546
30	24	762.0	610.0	559	533
30	22	762.0	559.0	559	521
30	20	762.0	508.0	559	508
30	18	762.0	457.0	559	495
30	16	762.0	406.4	559	483
30	14	762.0	355.6	559	483
30	12	762.0	323.8	559	473
30	10	762.0	273.0	559	460
32	30	813.0	762.0	597	584
32	28	813.0	711.0	597	572
32	26	813.0	660.0	597	572
32	24	813.0	610.0	597	559
32	22	813.0	559.0	597	546
32	20	813.0	508.0	597	533
NPS1	NPS2	OD1	OD2	C	M
32	18	813.0	457.0	597	521
32	16	813.0	406.4	597	508
32	14	813.0	355.6	597	508
34	32	864.0	813.0	635	622
34	30	864.0	762.0	635	610
34	28	864.0	711.0	635	597
34	26	864.0	660.0	635	597
34	24	864.0	610.0	635	584
34	22	864.0	559.0	635	572
34	20	864.0	508.0	635	559
34	18	864.0	457.0	635	546
34	16	864.0	406.4	635	533
36	34	914.0	864.0	673	660
36	32	914.0	813.0	673	648
36	30	914.0	762.0	673	635
NPS1	NPS2	OD1	OD2	C	M
36	28	914.0	711.0	673	622
36	26	914.0	660.0	673	622
36	24	914.0	610.0	673	610
36	22	914.0	559.0	673	597
36	20	914.0	508.0	673	584
36	18	914.0	457.0	673	572
36	16	914.0	406.4	673	559
38	36	965.0	914.0	711	711
38	34	965.0	864.0	711	698
38	32	965.0	813.0	711	686
38	30	965.0	762.0	711	673
38	28	965.0	711.0	711	648
38	26	965.0	660.0	711	648
38	24	965.0	610.0	711	635
38	22	965.0	559.0	711	622
NPS1	NPS2	OD1	OD2	C	M
38	20	965.0	508.0	711	610
38	18	965.0	457.0	711	597
40	38	1016.0	965.0	749	749
40	36	1016.0	914.0	749	737
40	34	1016.0	864.0	749	724
40	32	1016.0	813.0	749	711
40	30	1016.0	762.0	749	698
40	28	1016.0	711.0	749	673
40	26	1016.0	660.0	749	673
40	24	1016.0	610.0	749	660
40	22	1016.0	559.0	749	648
40	20	1016.0	508.0	749	635
40	18	1016.0	457.0	749	622
42	40	1067.0	1016.0	762	711
42	38	1067.0	968.0	762	711
NPS1	NPS2	OD1	OD2	C	M
42	36	1067.0	914.0	762	711
42	34	1067.0	864.0	762	711
42	32	1067.0	813.0	762	711
42	30	1067.0	762.0	762	711
42	28	1067.0	711.0	762	698
42	26	1067.0	660.0	762	698
42	24	1067.0	610.0	762	660
42	22	1067.0	559.0	762	660
42	20	1067.0	508.0	762	660
42	18	1067.0	457.0	762	648
42	16	1067.0	406.4	762	635
44	42	1118.0	1067.0	813	762
44	40	1118.0	1016.0	813	749
44	38	1118.0	965.0	813	737
44	36	1118.0	914.0	813	724
NPS1	NPS2	OD1	OD2	C	M
44	34	1118.0	864.0	813	724
44	32	1118.0	813.0	813	711
44	30	1118.0	762.0	813	711
44	28	1118.0	711.0	813	698
44	26	1118.0	660.0	813	698
44	24	1118.0	610.0	813	698
44	22	1118.0	559.0	813	686
44	20	1118.0	508.0	813	686
46	44	1168.0	1118.0	851	800
46	42	1168.0	1067.0	851	787
46	40	1168.0	1016.0	851	775
46	38	1168.0	965.0	851	762
46	36	1168.0	914.0	851	762
46	34	1168.0	864.0	851	749
46	32	1168.0	813.0	851	749
NPS1	NPS2	OD1	OD2	C	M
46	30	1168.0	762.0	851	737
46	28	1168.0	711.0	851	737
46	26	1168.0	660.0	851	737
46	24	1168.0	610.0	851	724
46	22	1168.0	559.0	851	724
48	46	1219.0	1168.0	889	838
48	44	1219.0	1118.0	889	838
48	42	1219.0	1067.0	889	813
48	40	1219.0	1016.0	889	813
48	38	1219.0	965.0	889	813
48	36	1219.0	914.0	889	787
48	34	1219.0	864.0	889	787
48	32	1219.0	813.0	889	787
48	30	1219.0	762.0	889	762
48	28	1219.0	711.0	889	762
NPS1	NPS2	OD1	OD2	C	M
48	26	1219.0	660.0	889	762
48	24	1219.0	610.0	889	737
48	22	1219.0	559.0	889	737

Butt Weld Reducing Tees Dimensions as per ASME B16.9. All dimensions are in mm.
Outlet dimension M for run sizes NPS 14 and larger is recommended but not required.

4. Butt Weld Reducing Tee Weight Chart

Pipe Tee Weight in KG, Schedule – Butt Weld Reducing Tee Weight

Norm pipe size, in.		Sch*	Dimensions in mm						Weight
Run	Outlet		D	D1	t	t1	C	M	kg/pc
3/4	1/2	10s 40s 80s	26.7 26.7 26.7	21.3 21.3 21.3	2.11 2.87 3.91	2.11 2.77 3.73	29 29 29	29 29 29	0.110 0.150 0.190
1	1/2	10s 40s 80s	33.4 33.4 33.4	21.3 21.3 21.3	2.77 3.38 4.55	2.11 2.77 3.73	38 38 38	38 38 38	0.190 0.220 0.281
1	3/4	10s 40s 80s	33.4 33.4 33.4	26.7 26.7 26.7	2.77 3.38 4.55	2.11 2.87 3.91	38 38 38	38 38 38	0.190 0.230 0.270
1¼	1/2	40s	42.2	21.3	3.56	2.77	47.6	47.6	0.367
1¼	3/4	10s 40s	42.2 42.2	26.7 26.7	2.77 3.56	2.11 2.87	47.6 47.6	47.6 47.6	0.440 0.530
1¼	1	10s 40s 80s	42.2 42.2 42.2	33.4 33.4 33.4	2.77 3.56 4.85	2.77 3.38 4.55	47.6 47.6 47.6	47.6 47.6 47.6	0.450 0.530 0.600
1½	1/2	10s 40s	48.3 48.3	21.3 21.3	2.77 3.68	2.11 2.77	57 57	57 57	0.390 0.520
1½	3/4	10s 40s 80s	48.3 48.3 48.3	26.7 26.7 26.7	2.77 3.68 5.08	2.11 2.87 3.91	57 57 57	57 57 57	0.390 0.520 0.690
1½	1	10s 40s 80s	48.3 48.3 48.3	33.4 33.4 33.4	2.77 3.68 5.08	2.77 3.38 4.55	57 57 57	57 57 57	0.420 0.550 0.724
2	3/4	10s 40s 80s	60.3 60.3 60.3	26.7 26.7 26.7	2.77 3.91 5.54	2.11 2.87 3.91	64 64 64	44 44 44	0.510 0.710 0.990
2	1	10s 40s 80s	60.3 60.3 60.3	33.4 33.4 33.4	2.77 3.91 5.54	2.77 3.38 4.55	64 64 64	51 51 51	0.540 0.740 1.020
2	1¼	10s 40s 80s	60.3 60.3 60.3	42.2 42.2 42.2	2.77 3.91 5.54	2.77 3.56 4.85	64 64 64	57 57 57	0.571 0.804 1.07
2	1½	10s 40s	60.3 60.3	48.3 48.3	2.77 3.91	2.77 3.68	64 64	60 60	0.590 0.830
2½	1¼	10s	73.0	42.2	3.05	2.77	76	67	0.874

5. Price list of SCHEDULE 40 Butt Weld Reducing Tee

Estan Pipe Fittings is one of the manufacturers and suppliers of Buttweld Fittings from China. Our prices for Reducing Tee Buttweld Fittings are very reasonable.

Please contact us for the latest price list and available stock information along with your requirements. We maintain a stock of all standard items and export them at the best price for Butt Weld Reducing Tee.

6. Pipe Tee Process

Butt Weld Reducing Tee can be manufactured in different ways. Cold forming is the most used manufacturing process for seamless buttweld tees, as illustrated below. ( Other methods are the single or double seam welding process).

PIPE TEE MANUFACTURING PROCESS-COLD FORMING

7. Packing of Butt Weld Reducing Tee

Estan Pipe Fittings emphasizes the packaging to ensure that there is no damage during transit to the Butt Weld Reducing Tees. Reducing Tees are packed in export standard plywood pallets/ free fumigation wooden case. They are marked with Grade, Lot No, Size, Degree, etc. You can also contact us for customized marking.

Surface: Light Oiling, Black Painting, Galvanizing, PE /3PE Anti-corrosion Coating
Packing: Export Standard Plywood Pallets/ Free Fumigation Wooden Case.

8. Butt Weld Reducing Tee HS Code

73072300 REDUCING TEE ASME B16.9 25 BUTT WELDING ENDS WROUGHT ASTM A234 GR WP11 CL2
73079390 TEE REDUCING BUTT-WELD ENDS ASTM A234-WPB SCH20X20 SIZE: 12X8 INCH BE
75072000 ASME B16.9 B 366 GR WP 20 CB/A 182 F20(NICKEL)-SIZE 80MM*80MM*50MM SCH40S REDUCING TEE BUTT WELD
73079390 TEE REDUCING BUTT-WELD ENDS ASTM A234-WPBSCH40X80 SIZE: 4X2 INCH RATING-BE