A National Pipe Thread (NPT) chart, typically available in Portable Document Format (PDF), serves as a crucial reference document. It provides dimensional specifications for tapered pipe threads commonly used in plumbing and fluid conveyance. The chart outlines parameters such as thread pitch, major and minor diameters, and thread length for various NPT sizes. Consulting such a resource allows engineers, machinists, and plumbers to ensure proper thread engagement and sealing when connecting pipes and fittings.
Access to these standardized measurements is paramount for achieving leak-proof connections in a range of applications, from residential plumbing to industrial piping systems. Consistent adherence to these specifications prevents premature failure, reduces maintenance costs, and ensures the safe operation of fluid-handling equipment. Historically, the establishment of NPT standards facilitated interoperability and interchangeability of components across different manufacturers.