The multitude of pipe thread types are defined by their standards, which set uniform expectations for the many types of screw threads used to connect pipes and pipe fittings. The purpose of these technical standards is to ensure safe and uniform connections between pipes and pipe fittings. In the United States, the standards are called “American National Standard Pipe Thread” standards, or national pipe thread standards, for short. The standards cover both the tapered and straight thread series for a variety of fitting considerations, including pressure-tight sealing, rigidity, and so on. The various types of standards are referred to throughout industry with both an acronym and a corresponding full name. The duality in referencing the standards can sometimes cause confusion. To help clear up some of that confusion, the below information is intended as a reference source which matches the acronym with the full name it represents as well as providing some other clarifying or defining information.
Common Pipe Threads
While working with pipe thread, keep in mind that proper aligning in the fastening stage can be ensured by measuring the thread with a thread measuring gauge, and proper seals, especially with non-tapered threads, can be achieved with pipe sealant tape or pipe thread sealant solution.
Product Compliance and Suitability
The product statements contained in this guide are intended for general informational purposes only. Such product statements do not constitute a product recommendation or representation as to the appropriateness, accuracy, completeness, correctness or currentness of the information provided. Information provided in this guide does not replace the use by you of any manufacturer instructions, technical product manual, or other professional resource or adviser available to you. Always read, understand and follow all manufacturer instructions.