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NPTF

NPTF (National Pipe Taper Fuel) is a dry-seal version of NPT designed for high-pressure applications where leak-proof connections are required without the use of thread sealant. Unlike NPT, where sealant is typically needed, NPTF threads deform slightly upon tightening, creating a mechanical seal.

Characteristics:

  • Thread Type: Tapered
  • Thread Angle: 60°
  • Sealing Method: Dry-seal (self-sealing without PTFE tape or sealant)
  • Applications: Hydraulic systems, fuel lines, gas and oil pipelines, high-pressure systems
  • Advantages:
    • Eliminates the need for additional sealant
    • Provides a tighter, leak-free connection
    • More reliable in high-pressure environments

NPTF threads are commonly used in fuel, hydraulic, and gas applications where leak prevention is critical and sealing compounds are not desirable.

NPTF
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