Equal-diameter tee

Product Overview

Tees are T‑shaped fittings used to create branch connections in piping systems. Featuring three openings, they enable fluid or medium diversion and multi‑way merging, facilitating precise control over media distribution and pipeline expansion. These products are widely employed in water supply, HVAC, oil and gas, chemical processing, and power generation industries, serving as essential components for constructing flexible, scalable piping networks.

Main Product Types

Equal-diameter tee: All three outlets have the same diameter, making it suitable for water supply and drainage systems as well as balanced分流 conditions in symmetrical process pipelines.
Reducing tee: The main pipe diameter is larger than the branch pipe diameter, commonly used in oil and gas transmission and municipal water supply projects to connect pipelines of different diameters.
45° Tee: The branch pipe forms a 45° angle, significantly reducing turbulence and pressure loss, making it suitable for high‑velocity piping systems.
Threaded / Baffle‑Tee: Threaded connection, suitable for low‑pressure applications and easy maintenance; an internal baffle is available as an option for flow regulation.

Common Materials

Carbon steel: high strength and excellent cost-effectiveness, suitable for high-pressure oil, gas, and steam pipelines.
Stainless steel (304/316): Excellent corrosion resistance, suitable for piping in the chemical, food and beverage, and pharmaceutical industries.
Alloy steel: Used in power plants and petrochemical facilities operating under high-temperature, high-pressure conditions.
Other materials—such as low-temperature steel, nickel-based alloys, copper, and ductile cast iron—can all be custom‑made to meet project requirements.

Production process

Our factory manufactures tees using hot‑press forming, cold extrusion, and hydraulic branch‑expansion processes, ensuring high forming accuracy and uniform wall thickness.
Hydraulic branch expansion: seamless three-way fittings are formed in a single step, delivering high production efficiency and superior strength at the base of the branch pipe.
Hot‑press forming: Suitable for large‑diameter, thick‑walled tees and capable of reliable operation under extreme service conditions.
They are available in seamless and welded types, with nominal diameters ranging from DN15 to DN3400.

Implementation Standard

The product is manufactured in accordance with mainstream domestic and international standards:
International standards: ASME B16.9, ASTM A234/A403, DIN 2615, GOST 17375, JIS B2311
Domestic standards: GB/T 12459, GB/T 13401, SH3408, HG/T 21635, DL/T 695
Sulfide‑resistant fittings compliant with NACE MR‑0175 are available, suitable for service conditions involving hydrogen sulfide corrosion.

Application areas

Oil and gas industry: refineries, natural gas transmission pipelines, petrochemical plants;
Power generation industry: steam distribution pipelines, cooling water pipelines, and fuel delivery systems;
Water supply industry: municipal pipe networks, industrial water treatment, fire‑fighting pipelines;
HVAC and Building Systems: chilled and heated water piping, as well as building‑related utility pipelines;
Marine Vessels: Offshore Platforms, Shipbuilding Projects.

Installation and Maintenance

Installation Key Points
Ensure that the fittings are coaxially aligned with the connected pipes; select welding, threaded, or flanged connections based on the pipe material and pressure rating. For threaded connections, install gaskets or sealant; for flanged connections, tighten the bolts to the specified torque in strict accordance with the relevant standards.
Maintenance Highlights
Regularly inspect piping components for corrosion, cracks, and pressure drop. For high-pressure, highly corrosive pipelines, it is recommended to conduct periodic nondestructive testing, such as ultrasonic and radiographic inspections, to ensure long-term service integrity.

Product Advantages

✅ Full‑category customization: Specifications, materials, anti-corrosion coatings, and connection methods can be tailored to your needs.
✅ Rigorous quality control: Supports chemical composition analysis, mechanical property testing, ultrasonic flaw detection, and hydrostatic pressure testing.
✅ A variety of anti-corrosion coatings are available, including anti-corrosion paint, 3LPE coating, hot-dip galvanizing, and more, suitable for a wide range of service environments.
✅ Comprehensive specification coverage: seamless tees from DN15 to DN1200, welded tees from DN200 to DN2000, with a maximum wall thickness of up to 150 mm.

Product Summary

Tees are essential fittings for constructing flexible, efficient, and reliable piping systems. Our products are manufactured from high‑quality raw materials and undergo precision machining, fully complying with international standards to ensure safe and stable operation across a wide range of industrial applications.
Whether it’s a new construction project, pipeline capacity expansion, or an inspection and renovation initiative, we can provide tailored, turnkey solutions to meet diverse requirements for media flow rates and pressure ratings.