Straight Tee Pipe Fittings, also known as equal tees, connect three pipes of the same nominal size and provide a branch for distributing or combining fluid flow. Designed for butt-weld piping systems, they are available in carbon steel, low-temperature carbon steel, alloy steel and stainless steel, depending on project requirements. Common material grades include ASTM A234 WPB, ASTM A420 WPL6 and ASTM A403 WP304/304L and WP316/316L. These fittings are widely used in industrial piping systems where reliable branch connections are required.
| Item | Specification |
|---|---|
|
Product Name |
Straight Tee Pipe Fitting |
|
Product Type |
Equal Tee / Straight Tee |
|
Fitting Type |
Butt Weld Pipe Fitting |
|
Nominal Pipe Size |
NPS 1/2–NPS 48 |
|
Size Standard |
ASME B16.9 |
|
Wall Thickness |
SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, XXS |
|
End Connection |
Butt Weld (BW) |
|
Material |
Carbon Steel, Low-Temperature Carbon Steel, Alloy Steel, Stainless Steel |
|
Typical Material Grades |
ASTM A234 WPB, ASTM A420 WPL6, ASTM A234 WP11/WP22/WP91, ASTM A403 WP304/304L, WP316/316L |
|
Manufacturing Process |
Hot Forming, Cold Forming, or Other Qualified Forming Processes |
|
Surface Treatment |
Black Painting, Anti-Rust Oil, Shot Blasting, Pickling, or Other Specified Treatments |
|
Application |
Oil and Gas, Petrochemical, Power Generation, Chemical Processing, and Industrial Piping |
|
Material Category |
Material Grade |
Material Standard |
|---|---|---|
|
Carbon Steel |
ASTM A234 WPB |
ASTM A234/A234M |
|
Low-Temperature Carbon Steel |
ASTM A420 WPL6 |
ASTM A420/A420M |
|
Low-Alloy Steel |
ASTM A234 WP11, WP22, WP91 |
ASTM A234/A234M |
|
Austenitic Stainless Steel |
ASTM A403 WP304/304L, WP316/316L |
ASTM A403/A403M |
Our straight tee pipe fittings are manufactured to applicable standards, including ASME B16.9, ASTM A234/A234M, ASTM A420/A420M, ASTM A403/A403M, and EN 10253-2, according to material type and project requirements.
We control material quality, forming processes, dimensions, wall thickness, and surface finish to ensure accurate fit-up, reliable welding, and dependable performance in customers’ piping systems.
Oil and Gas: Connects branch lines in oil, gas and pipeline systems.
Petrochemical Plants: Supports fluid distribution in process piping networks.
Chemical Processing: Used in piping systems handling industrial chemicals, subject to material compatibility.
Power Generation: Connects branch pipes in utility and process systems.
Water Treatment: Provides branch connections in industrial water supply and treatment pipelines.
General Industrial Piping: Suitable for process and fluid transportation systems designed around compatible materials, pressure ratings and operating temperatures.
What is a straight tee pipe fitting?
A straight tee pipe fitting, also called an equal tee, is a three-branch pipe fitting with the same nominal size at all three ends. It is used to connect a branch line to a main pipeline.
Which standard applies to straight tee pipe fittings?
ASME B16.9 is a commonly specified standard for factory-made wrought butt-welding fittings. The applicable material specification, such as ASTM A234/A234M or ASTM A403/A403M, depends on the material and service conditions.
What materials are available for straight tees?
Common options include carbon steel, low-temperature carbon steel, alloy steel and stainless steel. Typical grades include ASTM A234 WPB, ASTM A420 WPL6, ASTM A234 WP11/WP22/WP91 and ASTM A403 WP304/304L or WP316/316L.
How do I select the correct size and wall thickness?
Selection depends on the connected pipe size, required wall thickness, design pressure, operating temperature and applicable piping code. Confirm the specifications against the project drawings and purchase requirements.
Can straight tee pipe fittings be customized?
Yes, we customize straight tee pipe fittings according to the specifications and requirements provided by our customers.
Send us your drawings or requirements and get a fast quotation today.
