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  • NPT vs. BSPT Pipe FAQs (7)
    Why are there both NPT and BSPT threads?. What do the initials mean?. Does ATP offer fittings in BSPT, BSPP, NPT and NPS?. Can NPT or NPS be fitted to BSPT?. Are NPT/NPS threads compatible with BSPT?. How are the thread pitches different?. How do I determine the pitch?
  • Name that thread
    thread types: UN/UNF, NPT/NPTF, BSPP (BSP, parallel), BSPT (BSP, tapered), metric parallel, and metric tapered. Three are parallel (UN/UNF, BSPP, metric parallel) and three are tapered (NPT/NPTF, BSPT, metric tapered). Three are pipe threads (NPT/NPTF, BSPT, BSPP) and three are not (UN/UNF, metric
  • Guide to British Standard Pipe Threads
    This thread type has been adopted around the world as a standard for mating external and internal threads, and is common outside the U.S. The two types of BSP threads are BSPT (British Standard Pipe Taper) and BSPP (British Standard Pipe Parallel). BSPT threads have a diameter that increases

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