Difference between equal tee and reducing tee

Jan. 11, 2022

Tee is also called pipe fitting tee or tee fitting or tee joint. The pipe fitting tee can change the fluid direction and branch out of the main pipeline. Usually, we can classify all tees according to the pipe diameter. The primary raw material includes malleable iron tee, ductile iron tee, carbon steel tee, cast steel tee, alloy steel tee, stainless steel tee, copper tee, aluminium alloy tee, plastic tee, argon tee, asphalt tee, PVC tee and other materials.

Reducing tee:

The diameter is different from that of the other two branches. It is a reducing tee. Another reducing tee, the diameters of the three ports are different, also called reducing tee. The diameter of the branch pipe becomes smaller, which can increase the medium pressure of the branch pipe.


Reducing Tee Classifications and Scenarios


Welded Reducing Tee: Reducing welded Tee for applications that require a change in pipe diameter in a piping system to maintain a stable connection.


Flange Reducing Tee: Reducing flange tee for flanged connections where different diameters of pipes need to be connected in a piping system.


Threaded Reducing Tee: Reducing threaded tees, which are suitable for small- to medium-sized piping systems, offers the option of connecting different pipe diameters.


These classifications are selected based on specific needs and characteristics of the piping system. For example, welded types are suitable for high-pressure, high-temperature environments, while flanged connections are suitable for applications that require frequent removal and replacement. Threaded connections, on the other hand, are more suitable for small to medium-sized, low-pressure piping systems. Reducing Tee is usually used when there is a need to change the direction of fluid flow or pipe diameter in the pipeline to meet the requirements of system design and operation.


As shown in the figure below:

Reducing Tee, Type 1Reducing Tee, Type 2
Reducing Tee, Type 1   Reducing Tee, Type 2

 Reducing Tee DIMENSIONS

Nominal SizePipe O.DWorking PressureDimensionsCertificate
mm/inmm/inPSI/MpaL (mm/in)L1(mm/in)
50 × 2560.3 × 33.7300PSI
2.07MPa
363PSI
2.5MPa
5563
2 × 12.375 × 1.3152.165 2.480 
50 × 3260.3 × 42.45963
2 × 1¼2.375 × 1.6602.323 2.480 
50 × 4060.3 × 48.362 63 
2 × 1½2.375 × 1.9002.441 2.480 
65 × 4076.1 × 48.362 74 
2½ × 1½3.000 × 1.9002.441 2.913 
65 × 5076.1 × 60.366.5 74 
2½ × 23.000 × 2.3752.618 2.913 
80 × 5088.9 × 60.368.584FM UL
3 × 23.500 × 2.3752.697 3.307 
80 × 6588.9 × 76.17484FM UL 3C
3 × 2½3.500 × 3.0002.913 3.307 
100 × 50108.0 × 60.368.596
4 × 24.250 × 2.3752.697 3.780 
100 × 65108.0 × 76.17496
4 × 2½4.250 × 3.0002.913 3.780 
100 × 80108.0 × 88.98496
4 × 34.250 × 3.5003.307 3.780 
100 × 40114.3 × 48.366 97 FM UL
4 × 1½4.500 × 1.9002.598 3.819 
100 × 50114.3 × 60.368.596FM UL
4 × 24.500 × 2.3752.697 3.780 
100 × 65114.3 × 76.17496FM UL 3C
4 × 2½4.500 × 3.0002.913 3.780 
100 × 80114.3 × 88.98496FM UL 3C
4 × 34.500 × 3.5003.307 3.780 
125 × 65133.0 × 76.174113
5 × 2½5.250 × 3.0002.913 4.449 
125 × 80133.0 × 88.984113
5 × 35.250 × 3.5003.307 4.449 
125 × 100133.0 × 108.098113
5 × 45.250 × 4.2503.858 4.449 
125 × 100133.0 × 114.398113
5 × 45.250 × 4.5003.858 4.449 
125 × 65139.7 × 76.174113FM UL
5 × 2½5.500 × 3.0002.913 4.449 
125 × 80139.7 × 88.984113FM UL
5 × 35.500 × 3.5003.307 4.449 
125 × 100139.7 × 114.398113FM UL 3C
5 × 45.500 × 4.5003.858 4.449 
150 × 65159.0 × 76.174122
6 × 2½6.250 × 3.0002.913 4.803 
150 × 80159.0 × 88.984122
6 × 36.250 × 3.5003.307 4.803 
150 × 100159.0 × 108.098122
6 × 46.250 × 4.2503.858 4.803 
150 × 100159.0 × 114.3102122FM UL 3C
6 × 46.250 × 4.5004.016 4.803 
150 × 125159.0 × 133.0111122
6 × 56.250 × 5.2504.370 4.803 
150 × 125159.0 × 139.7114128
6 × 56.250 × 5.5004.488 5.039 
150 × 65165.1 × 76.178 126 FM UL 3C
6 × 2½6.500 × 3.0003.071 4.961 
150 × 80165.1 × 88.984126FM UL
6 × 36.500 × 3.5003.307 4.961 
150 × 100165.1 × 114.3102122FM UL 3C
6 × 46.500 × 4.5004.016 4.803 
150 × 125165.1 × 139.7114128FM UL
6 × 56.500 × 5.5004.488 5.039 
200 × 65219.1 × 76.187.5155FM UL
8 × 2½8.625 × 3.0003.445 6.102 
200 × 80219.1 × 88.994.5155FM UL
8 × 38.625 × 3.5003.720 6.102 
200 × 100219.1 × 108.0103149
8 × 48.625 × 4.2504.055 5.866 
200 × 100219.1 × 114.3103149FM UL 3C
8 × 48.625 × 4.5004.055 5.866 
200 × 125219.1 × 133.0118156
8 × 58.625 × 5.2504.646 6.142 
200 × 125219.1 × 139.7118156
8 × 58.625 × 5.5004.646 6.142 
200 × 150219.1 × 159.0124158FM UL
8 × 68.625 × 5.5004.882 6.220 
200 × 150219.1 × 165.1133158FM UL
8 × 68.625 × 6.5005.236 6.220 
250 × 100273.0 × 114.3225PSI
1.6MPa
136 186 
10 × 410.75 × 4.2505.354 7.323 
250 × 150273.0 × 165.1136 186 
10 × 610.75 × 6.5005.354 7.323 
250 × 200273.0 × 219.1165 190 
10 × 810.750 × 8.6256.496 7.480 
300 × 200323.9 × 219.1165215
12 × 812.750 × 8.6256.496 8.465 
300 × 250323.9 × 273.0192215UL
12 × 1012.750 × 10.7507.559 8.465 

   

Equal tee:

The diameter is the same as that of the other two branch pipes. It is an equal tee.


Equal Tee Classification and Applicable Scenarios


Welded Equal Tee: Connected by welding, suitable for applications requiring a stable connection and high strength, such as high-pressure and high-temperature environments.


Flanged Equal Tee: With a flanged connection, it is suitable for applications where frequent disassembly is required, providing more flexible installation and maintenance options.


Threaded Equal Tee: Easy to install with a threaded connection, suitable for small to medium-sized piping systems, no welding required.


As shown in the figure below:

 

Galvanized Equal TeeBlack Equal Tee
Galvanized Equal Tee Black Equal Tee

 Equal Tee DIMENSIONS

Nominal SizePipe O.DWorking PressureDimensionsCertificate
mm/inmm/inPSI/MpaL (mm/in)
50    60.3300PSI
2.07MPa
363PSI
2.5MPa
68.5FM UL 3C
2    2.374 2.697 
65    76.174FM UL 3C
2.996 2.913 
80    88.984FM UL 3C
3    3.500 3.307 
100    108.0 100FM UL
4    4.252 3.937 
100    114.3100FM UL 3C
4    4.500 3.937 
125    133.0 122
5    5.236 4.803 
125    139.7122FM UL 3C
5    5.500 4.803 
150    159.0 138FM UL 3C
6    6.260 5.433 
150    165.1138FM UL 3C
6    6.500 5.433 
200    219.1171FM UL 3C
8    8.626 6.732 
250    273.0 

212 
10    10.748 

8.346 
300    323.9 

242
12    12.752 

9.528 
250    273.0 225PSI
1.6MPa
363PSI
2.5MPa  225PSI
1.6MPa
212 UL
10    10.748 8.346 
300    323.9 242UL
12    12.752 9.528 


Application of TEE

Construction and maintenance of projects in the petrochemical industry, petroleum and natural gas, liquefied gas, chemical fertilizer, power plant, nuclear power, shipbuilding, papermaking, pharmacy, food hygiene, urban construction, and other industries of these projects have pipeline demands about the reducing tees and equal tee.

It is the application of TEE in the gas pipeline.

 

As a partner of China Gas Group, Jianzhi casting group is a significant supplier of gas pipelines in China. And is a member of the China Gas Association. If you have relevant requirements for gas pipeline equal tee and reducing tee, you are welcome to inquire.

 


SAFER

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