Butt weld elbows (45°, 90°, or 180°) are used to change direction in high-pressure or high-temperature piping systems, o...
Inquire1. Brief Introduction of Products:
A butt weld Y-type tee, or lateral tee, is an industrial pipe fitting used to create a 45-degree branch from a main pipeline, allowing for smoother fluid flow than standard 90-degree tees. It features three beveled ends for butt welding and is commonly used in high-pressure or high-flow applications to reduce pressure drop and turbulence.
Key Features & Characteristics
• Design: Features a main pipe run with a side outlet branch that departs at a 45-degree angle, resembling a 'Y' shape rather than a standard 'T' shape.
• Connection Type: Beveled ends designed to be butt-welded directly to pipes, ensuring a high-strength, leak-proof connection.
• Types: Available as "Equal" (all three openings are the same diameter) or "Reducing" (the branch is smaller than the main pipe).
• Standards: Usually manufactured to ASME B16.9 for steel pipes, covering dimensions and ratings.
• Material: Produced in carbon steel, stainless steel (e.g., ASTM A403 WP316L), and alloy steel, often featuring high corrosion resistance.
2. Technical Specification:

3A Standards
| Size | A | L1 | T |
| 1/2" | 12.7 | 50.8 | 1.65 |
| 3/4" | 19.05 | 50.8 | 1.65 |
| 1" | 25.4 | 76.2 | 1.65 |
| 1 1/2" | 38.1 | 76.2 | 1.65 |
| 2" | 50.8 | 101.6 | 1.65 |
| 2 1/2" | 63.5 | 127 | 1.65 |
| 3" | 76.2 | 152.4 | 1.65 |
| 4" | 101.6 | 203.2 | 2.1 |
| 6" | 152.4 | 203.2 | 2.8 |
This product are also available in DIN, ISO/IDF, SMS, BSP standards. Please feel free to contact us if you need it in other standards!
3. Key Applications and Use Cases:
• Oil & Gas Industry: Used in pipelines where smooth flow is necessary to minimize pressure losses.
• Pigging Systems: Ideal for pipelines that require "pigging" (routine cleaning or inspection) because of the 45-degree angle.
• High-Pressure Fluid Handling: Used in industries requiring superior strength over threaded or socket-welded fittings.
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