Answer
Feb 24, 2025 - 07:52 AM
NPTF (National Pipe Taper Fuel) threads are designed to create a seal through the deformation of the threads themselves, which often makes the use of Teflon tape or other sealants unnecessary. However, in practice, some people still use Teflon tape or pipe dope for added security, especially in applications involving gas or critical systems, to ensure there are no leaks.
