Reducing Tee

Size: 1/2"-48"
Wall thickness: SCH5S-SCHXXS
Material: Special Alloy, Super Duplex Stainless Steel, Stainless Steel, Carbon Steel, Titanium
Standards: ASME B16.9, ASME B16.28, MSS SP43, MSS SP75

PRODUCT DETAIL
Material

Size: 1/2″-48″
Wall thickness: SCH5S-SCHXXS
Material: Special Alloy, Super Duplex Stainless Steel, Stainless Steel, Carbon Steel, Titanium
Standards: ASME B16.9, ASME B16.28, MSS SP43, MSS SP75

A reducing tee features a smaller bore size at the branched pipe side (generally 2/3 sizes smaller).
In case a larger bore size reduction is necessary, then a reinforced branch connection (such as a Weldolet) shall be preferred to prevent turbulence and have a smoother flow reduction.
Reducing Tee are accessible in female string attachments, solvent weld attachments, side outlets and contradicted dissolvable weld attachments. These sorts of pipe fittings are vital as they fill two needs, i.e., they are utilised to join or split a liquid stream. These are broadly utilised for positive and vacuum applications. Besides, reducing tees can likewise be utilised to minimise conveyance lines to encourage ice creators. Because of their smooth stream ways, there is no turbulence in this way they can be utilised for water and waste supply. They are for the most part utilised as a part of the fields of semiconductor, and concoction handling.
The standard dimensions and tolerances of equal and reducing pipe tees are covered by the ASME B16.19 specification (carbon and alloy steel) and by the MSS SP 43 spec (for stainless steel and nickel alloys tees).

A reducing tee is a T-shaped pipe fitting with two outlets that cut at 90 degrees to the main line. These tees are available with a combination of diverse outlet sizes. In this, the branch port size is smaller than the other ports of the run. Before buying a reducing tee, there is a list of features and specifications one must look into to get the appropriate product. For instance,

It should be made under strict security standards
It should provide good impact strength
It should be easy to install
It should be light in weight

Features Of Reducing Tee

There are straight pipe tees which have the same size openings.
Reducing tee make them open of various size and two openings of the same size.
There are sterile reducing tees which are utilised as a part of waste lines.
These sort of reducing tees have a bent branch which is intended for a wipe outfitting. They are utilised to avoid hindrance of waste.
A reducing tee has dragged to attach the fitting to a divider or stud.
A reducing tee utilises pressure fittings on two or more finishes.
A reducing tee has a strong opening. This opening is utilised as a part of conjunction with a strong fitting for a get out an opening on a drain pipe.

Pipe Tee Manufacturing Process

Cold forming is the most used manufacturing process for seamless buttweld tees, as illustrated below. Other methods are the single, Hot Forming or double seam welding process.

Cold Forming

Hot Forming

One Seam Elliptical Method

Two Seam Welding Method

Quality Control
We have our own Physical & Chemical Testing Center Lab to guarantee our product quality. Our test items & instrument fully meet international standards.

Charpy impact test	Corrosion test	PT penetration inspection	Tensile test
Ultrasonic wt testing	Hardness test	Dimension test	High test
Thickness test	Alloy Analyzer (PMI)

Application of Equal Tee

Pipe and Tubes for petrochemical industry
Pharmaceutical industry
Food industry
Aviation and aerospace industry
Architectural decoration industry
Oil and Gas Pipeline industry

Dimensions Butt Welded Reducing Tees ASME B16.9NPS 1/2 to 48

Diameters:

Diameters 1/2 – 4

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
NPS	O.D. D	O.D. D1	Center to End C	Center to End M
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
NPS	O.D. D	O.D. D1	Center to End C	Center to End M

Dimensions Butt Welded Reducing Tees ASME B16.9NPS 1/2 to 48

Diameters 5 – 16

NPS	O.D. D	O.D. D1	Center to End C	Center to End M
5 – 2	141.3	60.3	124	105
5 – 2.1/2	141.3	73	124	108
5 – 3	141.3	88.9	124	111
5 – 3.1/2	141.3	101.6	124	114
5 – 4	141.3	114.3	124	117
6 – 2.1/2	168.3	73	143	121
6 – 3	168.3	88.9	143	124
6 – 3.1/2	168.3	101.6	143	127
6 – 4	168.3	114.3	143	130
6 – 5	168.3	141.3	143	137
8 – 3.1/2	219.1	101.6	178	152
8 – 4	219.1	114.3	178	156
8 – 5	219.1	141.3	178	162
8 – 6	219.1	168.3	178	168
10 – 4	273	114.3	216	184
10 – 5	273	141.3	216	191
10 – 6	273	168.3	216	194
10 – 8	273	219.1	216	203
NPS	O.D. D	O.D. D1	Center to End C	Center to End M
12 – 5	323.8	141.3	254	216
12 – 6	323.8	168.3	254	219
12 – 8	323.8	219.1	254	229
12 – 10	323.8	273	254	241
14 – 6	355.6	168.3	279	238
14 – 8	355.6	219.1	279	248
14 – 10	355.6	273	279	257
14 – 12	355.6	323.8	279	270
16 – 6	406.4	168.3	305	264
16 – 8	406.4	219.1	305	273
16 – 10	406.4	273	305	283
16 – 12	406.4	323.8	305	295
16 – 14	406.4	355.6	305	305
NPS	O.D. D	O.D. D1	Center to End C	Center to End M

Dimensions Butt Welded Reducing Tees ASME B16.9NPS 1/2 to 48

Diameters 18 – 26

NPS	O.D. D	O.D. D1	Center to End C	Center to End M
18 – 8	457	219.1	343	298
18 – 10	457	273	343	308
18 – 12	457	323.8	343	321
18 – 14	457	355.6	343	330
18 – 16	457	406.4	343	330
20 – 8	508	219.1	381	324
20 – 10	508	273	381	333
20 – 12	508	323.8	381	346
20 – 14	508	355.6	381	356
20 – 16	508	406.4	381	356
20 – 18	508	457	381	368
22 – 10	559	273	419	359
22 – 12	559	323.8	419	371
22 – 14	559	355.6	419	381
22 – 16	559	406.4	419	381
22 – 18	559	457	419	394
22 – 20	559	508	419	406
NPS	O.D. D	O.D. D1	Center to End C	Center to End M
24 – 10	610	273	432	384
24 – 12	610	323.8	432	397
24 – 14	610	355.6	432	406
24 – 16	610	406.4	432	406
24 – 18	610	457	432	419
24 – 20	610	508	432	432
24 – 22	610	559	432	432
26 – 12	660	323.8	495	422
26 – 14	660	355.6	495	432
26 – 16	660	406.4	495	432
26 – 18	660	457	495	444
26 – 20	660	508	495	457
26 – 22	660	559	495	470
26 – 24	660	610	495	483
NPS	O.D. D	O.D. D1	Center to End C	Center to End M

Dimensions Butt Welded Reducing Tees ASME B16.9NPS 1/2 to 48

Diameters 28 – 32

NPS	O.D. D	O.D. D1	Center to End C	Center to End M
28 – 12	711	323.8	521	448
28 – 14	711	355.6	521	457
28 – 16	711	406.4	521	457
28 – 18	711	457	521	470
28 – 20	711	508	521	483
28 – 22	711	559	521	495
28 – 24	711	610	521	508
28 – 26	711	660	521	521
NPS	O.D. D	O.D. D1	Center to End C	Center to End M
30 – 10	762	273	559	460
30 – 12	762	323.8	559	473
30 – 14	762	355.6	559	483
30 – 16	762	406.4	559	483
30 – 18	762	457	559	495
30 – 20	762	508	559	508
30 – 22	762	559	559	521
30 – 24	762	610	559	533
30 – 26	762	660	559	546
30 – 28	762	711	559	546
32 – 14	813	355.6	597	508
32 – 16	813	406.4	597	508
32 – 18	813	457	597	521
32 – 20	813	508	597	533
32 – 22	813	559	597	546
32 – 24	813	610	597	559
32 – 26	813	660	597	572
32 – 28	813	711	597	572
32 – 30	813	762	597	584
NPS	O.D. D	O.D. D1	Center to End C	Center to End M

Dimensions Butt Welded Reducing Tees ASME B16.9NPS 1/2 to 48

Diameters 34 – 38

NPS	O.D. D	O.D. D1	Center to End C	Center to End M
34 – 16	864	406.4	635	533
34 – 18	864	457	635	546
34 – 20	864	508	635	559
34 – 22	864	559	635	572
34 – 24	864	610	635	584
34 – 26	864	660	635	597
34 – 28	864	711	635	597
34 – 30	864	762	635	610
34 – 32	864	813	635	622
36 – 16	914	406.4	673	559
36 – 18	914	457	673	572
36 – 20	914	508	673	584
36 – 22	914	559	673	597
36 – 24	914	610	673	610
36 – 26	914	660	673	622
36 – 28	914	711	673	622
36 – 30	914	762	673	635
36 – 32	914	813	673	648
36 – 34	914	864	673	660
NPS	O.D. D	O.D. D1	Center to End C	Center to End M
38 – 18	965	457	711	597
38 – 20	965	508	711	610
38 – 22	965	559	711	622
38 – 24	965	610	711	635
38 – 26	965	660	711	648
38 – 28	965	711	711	648
38 – 30	965	762	711	673
38 – 32	965	813	711	686
38 – 34	965	864	711	698
38 – 36	965	914	711	711
NPS	O.D. D	O.D. D1	Center to End C	Center to End M

Dimensions Butt Welded Reducing Tees ASME B16.9NPS 1/2 to 48

Diameters 40 – 42

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
NPS	O.D. D	O.D. D1	Center to End C	Center to End M
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
NPS	O.D. D	O.D. D1	Center to End C	Center to End M

Dimensions Butt Welded Reducing Tees ASME B16.9NPS 1/2 to 48

Diameters 44 – 48

NPS	O.D. D	O.D. D1	Center to End C	Center to End M
44 – 20	1118	508	813	686
44 – 22	1118	559	813	686
44 – 24	1118	610	813	698
44 – 26	1118	660	813	698
44 – 28	1118	711	813	698
44 – 30	1118	762	813	711
44 – 32	1118	813	813	711
44 – 34	1118	864	813	724
44 – 36	1118	914	813	724
44 – 38	1118	965	813	737
44 – 40	1118	1016	813	749
44 – 42	1118	1067	813	762
NPS	O.D. D	O.D. D1	Center to End C	Center to End M
46 – 22	1168	559	851	724
46 – 24	1168	610	851	724
46 – 26	1168	660	851	737
46 – 28	1168	711	851	737
46 – 30	1168	762	851	737
46 – 32	1168	813	851	749
46 – 34	1168	864	851	749
46 – 36	1168	914	851	762
46 – 38	1168	965	851	762
46 – 40	1168	1016	851	775
46 – 42	1168	1067	851	787
46 – 44	1168	1118	851	800
48 – 22	1219	559	889	737
48 – 24	1219	610	889	737
48 – 26	1219	660	889	762
48 – 28	1219	711	889	762
48 – 30	1219	762	889	762
48 – 32	1219	813	889	787
48 – 34	1219	864	889	787
48 – 36	1219	914	889	787
48 – 38	1219	965	889	813
48 – 40	1219	1016	889	813
48 – 42	1219	1067	889	813
48 – 44	1219	1118	889	838
48 – 46	1219	1168	889	838
NPS	O.D. D	O.D. D1	Center to End C	Center to End M

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.

Source: Werner Sölken