Npt Thread Fitting
As a leader in the industry, Jianzhi Manufacturing not only has advanced production equipment and testing methods, but also has a high-quality technical research and development team. The company always adheres to the market-oriented, customer-centred, and constantly launches new products that meet the market demand.
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Black Iron Fittings Flat Seat Union Fig.330
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Iron Pipe Fittings 45 Degree Elbow Fig.120
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Black Bracket Elbow Fig.471
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Threaded Pipe Fittings Side Outlet Elbow Fig.1221
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Male and Female Threaded Long Radius Elbow Bend 90 Degree Fig.1
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BSP Black Malleable Iron 90 Degree Bend Fig. 2
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Elbow Pipe Bend 45 Degree Male and Female Fig.40
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Female GI Pipe Fittings 45 Degree Fig. 41
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Galvanized Pipe Bushing Fig.241
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GI Fittings Pipe Back Nut Fig.310
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Male Female Pipe Union Fitting Fig.331
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Black Pipe Fittings Union Taper Seat Fig.340
NPT Thread Pipe Fittings
NPT thread fitting, known as National (American) Pipe Thread, is the American national standard for 60 degree sealed tapered pipe threads.
NPT (National Pipe Taper) thread fittings are a fundamental component in various plumbing, piping, and fluid conveyance systems across North America. Renowned for their reliability and efficiency in creating tight seals, understanding NPT thread fittings is crucial for professionals in the fields of engineering, plumbing, and beyond. This article delves into the mechanics, selection, and application of NPT thread fittings, illustrating their pivotal role in ensuring leak-proof connections.
NPT threads are distinctive for their tapered profile, which facilitates a tighter and more secure seal as fittings are screwed together. This tapered design is instrumental in the mechanism of sealing, as the threads compress and deform slightly upon tightening, filling in any gaps that might allow leaks. The effectiveness of NPT fittings often relies on the use of thread sealants like Teflon tape or pipe dope to fill in any remaining voids, ensuring a fully pressure-tight seal.
Characteristics of NPT Threads
NPT threads are defined by the following features:
1.The taper angle is 1°47’ (measured from the center axis of the NPT fitting)
2.Level peaks and troughs
3.60°angle between each crest and trough
4.At the taper’s halfway, the outer diameter of an NPT fitting is measured.
5.Pitch (the distance between threads) is measured in threads per inch (TPI)
NPT threads are especially widely used in high-pressure, high-temperature industries such as petroleum, chemical, and water treatment. These industries require high sealing performance and connection strength in piping systems, and NPT threads are ideal for meeting these requirements.
The NPT threaded fittings manufactured by Jianzhi are made of Malleable iron, which is capable of withstanding high tensile and shear forces. Its tooth design is carefully calculated to ensure a stable and reliable connection, even in harsh environments.
In addition, the tapered pipe shape of the NPT thread gradually reduces the gap between the pipes during the connection process, further enhancing the sealing effect, effectively preventing media leakage and ensuring the safe operation of the piping system.
Jianzhi fittings is a manufacturer of NPT and BSPT threaded fittings. The products are fully certified. The main products include galvanized pipe fittings, black pipe fittings, grooved fittings. Welcome to get a quote