NPT and NPS threads share similarities in thread angle, shape and pitch (TPI – threads per inch). However, they differ in their design: NPT threads are tapered, while NPS threads are straight (parallel). Both types feature a 60° included angle. Tapered pipe threads are commonly used on ...
National Pipe Thread (NPT), also recognized as ANSI/ASME B1.20.1 Pipe Threads, is a standard for general-purpose tapered threads. Key specifications include:Thread Characteristics:1o 47'锥形螺纹，即每英寸锥度为1/16英寸，相当于每英尺3/4英寸。Roots and crests truncation: 顶部和根部...
As mentioned above, NPT threading has a tapered design that helps form a connection that prevents leaks in fluid/gas systems. NPS threads (or sometimes called parallel) fittings, on the other hand, are straight threads that are typically used for quick connections that do not require a tight ...