| NPT Size (inches) | Threads per inch | Outside Diameter (OD) (inches) | Drill Size (inches) |
|---|---|---|---|
| 1/16 | 27 | 0.3125 | 0.242 |
| 1/8 | 27 | 0.405 | 0.332 |
| 1/4 | 18 | 0.540 | 0.438 |
| 3/8 | 18 | 0.675 | 0.578 |
| 1/2 | 14 | 0.840 | 0.734 |
| 3/4 | 14 | 1.050 | 0.922 |
| 1 | 11.5 | 1.315 | 1.181 |
| 1 1/4 | 11.5 | 1.660 | 1.503 |
| 1 1/2 | 11.5 | 1.900 | 1.734 |
| 2 | 11.5 | 2.375 | 2.195 |
| 2 1/2 | 8 | 2.875 | 2.587 |
| 3 | 8 | 3.500 | 3.189 |
| 4 | 8 | 4.500 | 4.166 |
GITNUX MARKETDATA REPORT 2024
Npt Size Chart
The NPT Size Chart provides information on NPT sizes ranging from 1/16 to 4 inches, including threads per inch, outside diameter, and drill size measurements.
The NPT Size Chart provides information about various NPT (National Pipe Taper) sizes in inches. It includes details such as the threads per inch, outside diameter (OD), and drill size for each NPT size. This chart is useful for understanding the dimensions and specifications of NPT fittings and pipes.
FAQs
What is an NPT size chart?
An NPT size chart is a reference tool used to determine the standard dimensions of National Pipe Taper (NPT) threads, which are commonly used in pipe fittings.
How many variations of NPT sizes are there?
The NPT size chart comprises a range of sizes, including 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2", and larger sizes up to 12". These sizes represent the nominal pipe size (NPS) for which the thread is intended.
What are the types of NPT threads available?
National Pipe Taper (NPT) threads are available in two variations NPT (male) and NPTF (female). While NPT threads have a slight taper, NPTF threads have a larger taper, resulting in a more secure and leak-resistant connection.
Are NPT sizes standardized across different countries?
Although National Pipe Taper (NPT) threads originated in the United States, the NPT size chart has been adopted as an international standard. However, it is essential to consider regional variations in pipe sizing conventions and thread standards.
Can NPT sizes be used interchangeably with other thread types?
NPT threads are generally not compatible with other thread types due to their unique taper and thread design. Attempting to interchange NPT fittings with other thread types may result in leaks, improper connection, or even equipment damage. It is vital to ensure compatibility between thread types before making connections.
How we write our statistic reports:
We have not conducted any studies ourselves. Our article provides a summary of all the statistics and studies available at the time of writing. We are solely presenting a summary, not expressing our own opinion. We have collected all statistics within our internal database. In some cases, we use Artificial Intelligence for formulating the statistics. The articles are updated regularly.
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