National Pipe Tapered (NPT) is a standard used in the United States for threads on threaded pipes and fittings. Here are some key dimensions related to NPT:
- The taper rate for all NPT threads is 1/16″ per foot or 0.75%.
- The thread pitch, or number of threads per inch, varies depending on the size of the pipe. For example, a 1/4″ NPT pipe will have 18 threads per inch, while a 1″ NPT pipe will have 11.5 threads per inch.
- The outside diameter (OD) of the pipe also varies depending on the size and schedule of the pipe. For example, a 1/2″ NPT pipe with a schedule of 40 will have an OD of 0.840″, while a 1″ NPT pipe with a schedule of 80 will have an OD of 1.315″.
- There are different types of NPT threads, including external male threads, internal female threads, and internal threads for use with a gasket or sealant. It is important to use the correct type of thread for the application to ensure a proper seal.
1 8 National Pipe Tapered Dimensions & Sizes
| Type | Common Sizes (inches) | Dimensions |
|---|---|---|
| NPT | 1/8 | Inner Diameter: 0.34 inches Outer Diameter: 0.54 inches Pitch Diameter: 0.4375 inches Threads per inch: 27 |
Guide to 1 8 National Pipe Tapered: References and Resources
Here are some references to help you dig deeper into the dimensions of 1 8 National Pipe Tapered:
- Engineering Toolbox: This website provides an in-depth explanation of NPT threads, including the dimensions for 1 8 NPT.
- American Alloy Flange: This site has a comprehensive guide to ANSI flange specifications, including information on NPT threads and fittings.
- GlobalSpec: This page has a wealth of information on pipe fittings and port adapters, including details on NPT dimensions and specifications.
By exploring these resources, you can gain a thorough understanding of the dimensions and specifications of 1 8 NPT threads and fittings. This information can be useful in various industries, such as plumbing and construction, where such fittings are commonly used.
If you’d like to delve deeper into the topic of Dimensions, we encourage you to utilize our search feature in KOBI International or visit the official websites and references for accessing relevant materials.
