NPT and NPTF
NPT and NPTF
(OP)
I've got two fittings. One with a male NPTF and the other with a female NPT. I know the two are somewhat interchangeable, but I was wondering if this would work. This isn't a high-pressure application, so some sort of sealing will be used. Thanks
Jeff Parham
Mechanical Engineer
Mining Trucks





RE: NPT and NPTF
It sounds like you have a Male NPT and a Female NPT.
If this is so and they are both the same size (say 3/4") then they will fit together.
NPT (National Pipe Thread) is very common and is recognizable because it is a tapered thread. If you are using carbon Steel pipe then you could use a common Pipe Dope or Teflon Pipe Tape to make a very tight joint..
RE: NPT and NPTF
RE: NPT and NPTF
Jeff Parham
Mechanical Engineer
Mining Trucks
RE: NPT and NPTF
Go ahead and use NPTF male with NPT female. Use a thread sealant like Loctite PST.
Ted