NPT Coupling - Quality Manufacturer of Industrial
2021-6-25 · B1.20.1 Standard on Pipe Threads, General Purpose, Inch; NPT - American National Standard Taper Pipe Thread ; Note that both NPT and NPS have the same thread angle, shape, and pitch (threads per inch). However, NPT threads are tapered and NPS threads are straight (parallel). Both threads have a 60° included angle and flat peaks and valleys.
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