Answer
Dec 03, 2024 - 01:07 PM
NPTF threads, or National Pipe Taper Fuel threads, are designed for creating a seal without the need for a sealant. The classes of NPTF threads are primarily divided into two: NPTF Class 1 (NPTF-1), which is a loose fit for assembly ease, and NPTF Class 2 (NPTF-2), which offers a tighter fit for better sealing capabilities. These threads are commonly used in high-pressure applications where leak-proof connections are critical.
