Description
https://www.pipenipples.com/classification-of-pipe-threads.html CLASSIFICATION OF PIPE THREADS Pipe threads are threads on the pipe wall for connection. There are 55 degrees unsealed pipe thread and 55 degrees sealed pipe thread. It is mainly used to connect pipes to make the internal and external threads fit tightly. There are two different types of pipe threads of straight pipe and tapered pipe. Different Types of Pipe Threads 1. NPT is the abbreviation of National (American) Pipe Thread, which belongs to the American standard 60 degrees taper pipe thread produced by pipe nipple manufacturer and is used in North America. Refer to GB/T12716-1991 for the national standard. 2. PT (BSPT) is the abbreviation of Pipe Thread, which is a 55 degrees sealed conical pipe thread, belonging to the Wyeth thread family, which is mostly used in Europe and the Commonwealth countries. It is commonly used in the water and gas pipe industry with a taper of 1:16. Refer to GB/T7306-2000 for the national standard. The domestic name is ZG.
CLASSIFICATION OF PIPE THREADS
