Answer
Jan 20, 2025 - 10:27 AM
NPT (National Pipe Taper) and NPTF (National Pipe Taper Fuel) threads are both tapered threads used for creating pressure-tight seals. The primary difference is that NPT threads require a sealing compound to prevent leaks, while NPTF threads are designed to create a dry seal without the need for additional sealants. This is achieved through tighter manufacturing tolerances and a slight difference in thread profile, allowing NPTF threads to deform slightly upon tightening to create a seal.
