Tees

Our pipe tees are high-strength components used to combine or divide fluid flow within a piping network. Designed with a 90-degree branch, we offer both Equal Tees (where the branch diameter matches the main pipe) and Reducing Tees (where the branch is smaller), ensuring maximum flexibility for complex piping layouts.

Technical Specifications

Size Range:

Seamless (SMLS): 1/2" to 24" (DN15 – DN600)

Welded (Seam): 24" to 72" (DN600 – DN1800)

Wall Thickness: SCH 10, SCH 40, SCH 80, SCH 160, XS, XXS (Up to 100mm for specialized projects).

Production Standards:

ASME/ANSI: B16.9, B16.11 (for forged fittings)

DIN/EN: EN 10253-1, EN 10253-2, DIN 2615

MSS: SP-75 (High-test, wrought butt-welding fittings)

JIS: B2311, B2312

Steel Grades:

Carbon Steel: ASTM A234 WPB (Most common), WPC; ASTM A105 (Forged)

Alloy Steel: ASTM A234 WP1, WP5, WP9, WP11, WP22, WP91

Low-Temperature Steel: ASTM A420 WPL3, WPL6

Stainless Steel: ASTM A403 WP304/304L, WP316/316L, 317L, 321, 347

High-Yield/Pipeline Steel: ASTM A860 WPHY 42, 46, 52, 60, 65, 70

Primary Applications

Pipe tees are indispensable in industrial systems where multi-directional flow is required:

Oil & Gas Pipelines: Creating branch connections for gathering lines and distribution manifolds.

Petrochemical & Refining: Handling the diversion of chemicals and hydrocarbons under high pressure and temperature.

Power Generation: Used in cooling water systems and steam distribution networks.

HVAC & Civil Construction: Managing flow in large-scale heating, cooling, and fire protection systems.

Mining & Slurry Transport: Specifically designed heavy-wall tees are used to handle abrasive materials.

Quality Assurance & Inspection

To ensure the integrity of the branch weld and the overall structural strength, all our tees undergo:

Dimensional Verification: Ensuring 90-degree accuracy and precise beveling for easy field welding.

Non-Destructive Testing (NDT): Including Ultrasonic (UT), Magnetic Particle (MPI), and X-ray testing on welded joints.

Surface Treatment: Provided with rust-proof oil, black painting, hot-dip galvanizing, or sandblasting as per client requirements.

Certification: Every shipment includes a Mill Test Certificate (MTC) per EN 10204 3.1, documenting the chemical and mechanical properties of the steel.

Steel Material Grades

Butt welding Fittings Manufacturing Standards

Pipe Tee Production Process

Frequently Asked Questions

1. When do buyers usually choose a tee instead of a fabricated branch connection?

They usually choose a tee when they want a simpler standardized fitting route and the branch geometry suits it. The decision often depends on fabrication preference, inspection comfort, and branch loading. Typical long-tail phrases include equal tee for process piping, reducing tee for branch connection, and carbon steel tee fittings for oil and gas projects.

2. Why can tee quotations vary even when the branch sizes look straightforward?

The biggest differences usually come from schedule combination, reducing versus equal type, testing expectations, and whether the order needs coordinated packing and documents with the rest of the piping system. This becomes visible in branch fitting supply for refinery piping and utility lines where equal and reducing tee choices affect both design and price.

3. What is the most useful customer question before approving a tee order?

A useful question is whether the branch service, branch size, and schedule combination really match the line list. That check often prevents small but expensive ordering mistakes. That question matters most in branch connections for process plants, municipal water systems, and industrial utility piping.

4. What do buyers most often overlook with tees?

They often overlook the fact that branch and run details must both align with the actual piping schedule. The tee may look simple, but mismatch risk is common. Errors are common in tee supply when run size, branch size, and schedule matching are not reviewed against the actual branch service.