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NPT vs NPTF: Unveiling the Secrets of Tapered Pipe Threads

2024-07-08

Latest company news about NPT vs NPTF: Unveiling the Secrets of Tapered Pipe Threads

“Use NPT for general plumbing purposes where sealants are acceptable. Choose NPTF for situations demanding a more robust, leak-proof connection without relying on external sealants…”

 

NPT and NPTF threads are both tapered pipe thread standards used to create leak-proof connections, but they differ in their sealing mechanism:

 

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NPT (National Pipe Taper): This is a general-purpose thread that relies on a sealant, like Teflon tape or pipe dope, to form a tight seal. The taper helps compress the sealant during assembly, creating a barrier against leaks. NPT is suitable for lower pressure and temperature applications where using a sealant isn't a problem.

 

NPTF (National Pipe Taper Fuel): This thread is designed for a metal-to-metal seal, eliminating the need for sealant. The threads have slightly sharper crests and flatter roots compared to NPT. When tightened, these deformations create a tighter fit, forming a mechanical seal. NPTF is ideal for high-pressure or high-temperature applications where sealants might degrade or contaminate fluids.

 

Here's a table summarizing the key differences:

 

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latest company news about NPT vs NPTF: Unveiling the Secrets of Tapered Pipe Threads  2

 

 

In short, use NPT for general plumbing purposes where sealants are acceptable. Choose NPTF for situations demanding a more robust, leak-proof connection without relying on external sealants.

 

Janet Yao

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