Pipe Lateral Tee Dimension
When it comes to designing and implementing piping systems, understanding the dimensions and specifications of various fittings is crucial. One such fitting is the pipe lateral tee, which plays a vital role in the distribution and redirection of fluid flow. This article provides an in-depth look at the dimensions and applications of pipe lateral tees to ensure optimal performance in your piping projects.
Understanding Pipe Lateral Tees
A pipe lateral tee, also known as a "Y" tee, is a pipe fitting with three openings – one inlet and two outlets. Unlike standard tees, which have outlets at 90-degree angles, the outlets of a lateral tee are typically at 45 degrees. This design allows for smoother fluid flow and reduces turbulence, making it ideal for systems requiring efficient flow distribution.
Key Dimensions of Pipe Lateral Tees
1. Nominal Pipe Size (NPS)
The nominal pipe size (NPS) is a standard dimension that represents the diameter of the pipe. It is crucial to match the NPS of the lateral tee with the pipes in your system to ensure proper fitting and functionality.
2. Outside Diameter (OD)
The outside diameter (OD) of the lateral tee is the external measurement across the widest point of the fitting. This dimension is critical for determining the compatibility with other pipe components and for calculating clearances in your piping layout.
3. Wall Thickness
The wall thickness of the lateral tee affects its strength and durability. The wall thickness is often specified by a schedule number, such as Schedule 40 or Schedule 80. Thicker walls can handle higher pressures and are more resistant to mechanical damage.
4. Center-to-End Dimensions
The center-to-end dimensions include the measurements from the center of the fitting to the end of each outlet. These dimensions are crucial for ensuring accurate placement within the piping system and for calculating the overall length of the system.
5. Angle of Outlet
The angle of the outlet is typically 45 degrees for a lateral tee. This angle is essential for directing the flow efficiently and reducing pressure drops in the system.
Standard Dimensions for Pipe Lateral Tees
Here are some standard dimensions for pipe lateral tees based on common NPS sizes:
| NPS (inches) |
Outside Diameter (OD) (inches) |
Center-to-End Dimension (inches) |
Wall Thickness (Schedule 40) (inches) |
| 1/2 |
0.84 |
1.50 |
0.109 |
| 3/4 |
1.05 |
1.50 |
0.113 |
| 1 |
1.32 |
1.75 |
0.133 |
| 1 1/2 |
1.90 |
2.00 |
0.145 |
| 2 |
2.38 |
2.25 |
0.154 |
| 3 |
3.50 |
2.75 |
0.216 |
| 4 |
4.50 |
3.00 |
0.237 |
These dimensions can vary slightly based on the manufacturer and specific standards used (such as ASME, ANSI, or ISO).
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