Pipe and piping fittings
Equal tee
Creating a branch from the run pipe or dividing flow
Specialist selection guide
What should be reviewed before selecting this product?
An equal tee creates a 90-degree branch with the same nominal size as the run. Its body and crotch reinforcement are factory formed, but adequacy must still be confirmed by piping pressure and stress design.
Technical selection path
- 1
Verify run and branch size and schedule
- 2
Review branch flow direction and pressure loss
- 3
Match actual end wall and alignment tolerances
- 4
Analyse branch loads and support requirements
- 5
Specify material grade and heat treatment
Key strengths
- Standard full-size branch
- Integral, inspectable construction
- Less shop fabrication welding
Selection limitations
- Local pressure loss at the branch
- Sensitivity to branch load and vibration
- Needs more space than a reinforced outlet fitting
Typical applications
Where can this option be considered?
- Dividing or combining flow
- Process headers
- Full-size equipment branches
Reference standards
A standard does not replace the project specification
Common technical questions
Concise answers before enquiry
When is an equal tee selected?
When branch and run nominal sizes are equal and the hydraulic and stress design permits a factory-made tee.
Does a tee require additional reinforcement?
It depends on the design code, pressure, wall, branch loads and actual geometry and must be determined by piping calculations.
Equal or reducing branches in a piping network
Run and branch sizes, reinforcement, load direction and stress requirements
Initial review sheet
Technical attributes to review
Final values must come from project specifications, calculations and manufacturer data. This table defines the information scope.
FamilyButt-weld fittings
Main groupPipe and piping fittings
Materials to evaluateCarbon steel, Stainless steel, Alloy steel, Nickel alloy
Connections to evaluateButt-weld
Typical mediaProcess, Steam, Gas, Liquid
Relevant industriesOil and gas, Refining, Petrochemical, Power generation, Water and utilities
Reference standardsASME B16.9 · ASME B16.28 · MSS SP-75
Enquiry checklist
Include this information with your request
Size and schedule
Radius and angle
Reduction type
Material grade
Dimensional tolerance
Testing and certification
Before substitution
A matching name does not guarantee interchangeability
Installation dimensions, pressure rating, wetted materials, sealing design, construction standard, testing and documentation must be checked independently.
Adjacent types
Other options in this family
Final technical approval is required
This page is educational and intended for initial screening. Final selection must be approved against project requirements, actual service conditions and manufacturer documentation.
Send request for review