What does NPT stand for?

The term NPT stands for National Pipe Thread, specifically known as the standard for tapered threads used on pipes and fittings. This standard is critical in plumbing and various industrial applications because it ensures that the threads can form a tight seal, preventing leaks when connecting pipes. The designation "national" refers to the standards that have been developed and regulated within the United States.

The choice regarding "Normal Pipe Taper" or other variations does not accurately reflect the established terminology and standards used in the industry. Thus, understanding the correct terminology and its application is essential for anyone working with piping systems.