matty h
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| posted on 25/8/20 at 06:09 PM |
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Npt and nptf difference
Purchased an Male to female adaptor for an oil pressure sensor from m12x1.5 Male to 1/8npt but appears sender is 1/8 nptf and only goes in a turn.
What is the difference as nptf seems rather rare struggling to find one.
Matty
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Theshed
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| posted on 25/8/20 at 07:50 PM |
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Have a looky here
https://www.hoseassemblytips.com/what-is-the-difference-between-npt-and-nptf/
I think they are compatible but you need to force fit to self seal - do you want to borrow a tap?
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voucht
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| posted on 26/8/20 at 05:06 AM |
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To me NPT and NPTF are the same thing. NPT is just a short for NPTF (National Pipe Tapered Fuel)
1 turn in seems not enough. For 1/8, the minimum length of the male part that should be screwed in the female part to assure sealing is 6.70mm,
according to NPTF standards. So try to force it in a bit more.
As NPT/NPTF it is a tapered thread, it is self-sealing, however, in all case, it is recommended to use PTFE (Teflon) tape or liquid PTFE to assure
sealing.
Hope that will help 
555
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JMW
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| posted on 26/8/20 at 10:22 AM |
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Could it be bspt as opposed to npt? 1 tpi difference between them (bsp 28, npt 27).
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TimC
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| posted on 26/8/20 at 04:15 PM |
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My understanding: will work fine in most of our applications. Not approved match for aerospace.
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