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
Straight Tee (Equal Tee)
An equal tee, otherwise called straight tee, means the branch diameter of this tee is same with the main pipe (Run pipe) diameter of this tee.
A pipe tee is defined “equal” when the bore size at the run and branch sides have the same diameter. An equal tee is, therefore, used to connect two pipes of the same nominal diameter.
Equal tees are available in sizes from half an inch to 48 inches (or larger) and in seamless and welded execution (seamless up to 24 inches, welded for tee sizes above 24 inches).
The equivalent tee (or straight tee) is utilised as the branch has the same distance across as the run pipe. Equal Tee are equipped for taking care of any high or low weight stream of fluid through it. The equal tee are with the same channel and outlet sizes, however, customers can profit from us “decreasing” tees too that have maybe a couple closes with various in measurement, this is called an equal tee. Because of their dimensional contrast, these tee fittings help with the ability to control the volume when required. Our scope of Equal Tee and Equal Cross are impeccably built utilising most recent innovation and are generally utilised as a part of differing piping frameworks crosswise over commercial ventures. Faultlessly built to flawlessness utilising most recent machines and innovation, these pipe fittings are broadly utilised as a part of a large number of commercial ventures far and wide. Durable in quality, these pipe fittings are accessible at competitive prices.
Features Of Equal Tee
- There are three female openings in a ‘T’ formed pipe tee.
- There are straight pipe tees which have the same size openings.
- Equal tee make them open of various size and two openings of the same size.
- There are sterile equal tees which are utilised as a part of waste lines.
- These sort of equal tees have a bent branch which is intended for a wipe outfitting. They are utilised to avoid hindrance of waste.
- An equal tee has dragged to attach the fitting to a divider or stud.
- An equal tee utilises pressure fittings on two or more finishes.
- An equal 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.
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Charpy impact test
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Corrosion test
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PT penetration inspection
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Tensile test
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Ultrasonic wt testing
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Hardness test
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Dimension test
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High test
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Thickness test
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Alloy Analyzer (PMI)
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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 Straight Tees (Equal Tees)
ASME B16.9 NPS 1/2 – 48

NPS |
O.D. D |
Center to End C |
Center to End M |
1/2 | 21.3 | 25 | 25 |
3/4 | 26.7 | 29 | 29 |
1 | 33.4 | 38 | 38 |
1.1/4 | 42.2 | 48 | 48 |
1.1/2 | 48.3 | 57 | 57 |
2 | 60.3 | 64 | 64 |
2.1/2 | 73 | 76 | 76 |
3 | 88.9 | 86 | 86 |
3.1/2 | 101.6 | 95 | 95 |
NPS |
O.D. D |
Center to End C |
Center to End M |

NPS |
O.D. D |
Center to End C |
Center to End M |
4 | 114.3 | 105 | 105 |
5 | 141.3 | 124 | 124 |
6 | 168.3 | 143 | 143 |
8 | 219.1 | 178 | 178 |
10 | 273 | 216 | 216 |
12 | 323.8 | 254 | 254 |
14 | 355.6 | 279 | 279 |
16 | 406.4 | 305 | 305 |
18 | 457 | 343 | 343 |
20 | 508 | 381 | 381 |
22 | 559 | 419 | 419 |
24 | 610 | 432 | 432 |
NPS |
O.D. D |
Center to End C |
Center to End M |

NPS |
O.D. D |
Center to End C |
Center to End M |
26 | 660 | 495 | 495 |
28 | 711 | 521 | 521 |
30 | 762 | 559 | 559 |
32 | 813 | 597 | 597 |
34 | 864 | 635 | 635 |
36 | 914 | 673 | 673 |
38 | 965 | 711 | 711 |
40 | 1016 | 749 | 749 |
42 | 1067 | 762 | 711 |
44 | 1118 | 813 | 762 |
46 | 1168 | 851 | 800 |
48 | 1219 | 889 | 838 |
NPS |
O.D. D |
Center to End C |
Center to End M |
Dimensions are in millimeters unless otherwise indicated. Wall thickness (t) must be specified by customer.
Outlet dimension (M) for NPS 26 and larger is recommended but not required.
DIMENSIONAL TOLERANCES STRAIGHT 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 |
+1.6 |
1.6 |
1.6 |
+2.4 |
+4 |
+6.4 |
+6.4 |
+6.4 |
Inside Dia at End |
0.8 |
1.6 |
1.6 |
1.6 |
3.2 |
4.8 |
+6.4 |
+6.4 |
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.
Material
Special Alloys
- HASTELLOY® X
- MONEL® R-405
- MONEL® K-500
- HASTELLOY® C-276
- HASTELLOY® C-22
- HASTELLOY® B-2
- INCOLOY® 825
- INCOLOY® 800H / 800HT®
- INCONEL® 718
- INCONEL® ALLOY 625
- INCONEL® ALLOY 601
- INCONEL® ALLOY 600
- MONEL® ALLOY 400
ALLOY 20
- NICKEL 200/201
- MONEL® R-405
- MONEL® K-500
- MONEL® ALLOY 400
- INCONEL® 718
- INCONEL® ALLOY 625
- INCONEL® ALLOY 601
- INCONEL® ALLOY 600
- INCOLOY® 825
- HASTELLOY® X
- HASTELLOY® C-276
- HASTELLOY® C-22
- HASTELLOY® B-2
- INCOLOY® 800H / 800HT®
- HASTELLOY® B-3
Duplex Stainless Steel
- ZERON® 100, SUPER DUPLEX STAINLESS STEEL
- Super Duplex S32760
- LDX 2101®, DUPLEX STEEL
- Duplex S31803
- SUPER DUPLEX 2507
- DUPLEX 2205
Stainless Steel
- STAINLESS STEEL NITRONIC 50HS
- STAINLESS STEEL NITRONIC 60
- STAINLESS STEEL NITRONIC 50
- STAINLESS STEEL 13-8PH
- STAINLESS STEEL 15-5PH
- STAINLESS STEEL PRODEC 303
- STAINLESS STEEL 303
- STAINLESS STEEL 446
- STAINLESS STEEL 410S
- STAINLESS STEEL 410
- STAINLESS STEEL 304-304H
- STAINLESS STEEL 17-4
- STAINLESS STEEL 347
- STAINLESS STEEL 440C
- STAINLESS STEEL 309
- STAINLESS STEEL 316-316l
- STAINLESS STEEL AL-6XN®
- STAINLESS STEEL 330
- STAINLESS STEEL 321
- 317L STAINLESS STEEL
- STAINLESS STEEL 310/310S
- Stainless Steel 304L
- Stainless Steel 304
- STAINLESS STEEL 253 MA
Carbon Steel
- CARBON STEEL PRODUCTS
Titanium
- 10V-2Fe-3Al
- 6Al-4V
- 6Al-4V STA
- 6Al-4V ELI
- 6Al-2Sn-4Zr-2Mo