Answer
Feb 24, 2025 - 08:13 AM
NPT (National Pipe Taper) and NPTF (National Pipe Taper Fuel) are both standards for pipe threads used in the United States. The primary difference lies in their sealing capabilities: NPT threads require a sealing compound or tape to prevent leaks, whereas NPTF threads are designed to create a mechanical seal without the need for additional sealing materials, making them suitable for fuel and high-pressure applications. Additionally, NPTF threads have a slightly different thread profile and tighter tolerances compared to NPT.