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Viesearch•
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@fitlok67editor•
Difference Between NPT and NPTF Threads
The threads are almost the same; the difference lies in how they create a leak-proof seal. NPTF threads do not require thread sealant, but sealant is very important when installing NPT threads fittings to create a leak-proof seal. NPT is general purpose tapered pipe thread, whereas NPTF is dryseal tapered pipe thread.
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