NPT Female Adapter
NPT Female Adapter are available as standard in Brass and 316 Stainless Steel. Pipe Fittings can also be supplied in other materials including Monel®, Hastelloy® C276, Inconel®, Incoloy®, Duplex, Super Duplex and Titanium, as well and in special shapes. While the standard materials are 316 stainless steel, brass and carbon steel, we can also manufacture these fittings in other materials to meet your company’s needs. The basic fitting capabilities show the fittings will stand up during prolonged exposure to temperatures as high as 800°F. Those ratings are dependent upon the design and whether the fitting is 316 stainless steel or brass. NPT Female Adapter made of 316 stainless steel are heat code traceable for the benefit of your operation.
All exposed threads of NPT Female Adapter protected with plastic caps to prevent damage and packed in sealed, clear plastic bag for cleanliness.
What are NPT Threads ?
Threaded pipes can provide an effective seal for pipes transporting liquids, gases, steam, and hydraulic fluid. These threads are now used in materials other than steel and brass, including PTFE, PVC, nylon, bronze, and cast iron.
The taper on NPT threads allows them to form a seal when torqued as the flanks of the threads compress against each other, as opposed to parallel/straight thread fittings or compression fittings in which the threads merely hold the pieces together and do not provide the seal. As the thread body is tapered (0.75 in/ft or 62.5 mm/m) a larger diameter keeps compressing into a smaller diameter and finally forms a seal (no clearance remains between the crests and roots of the threads because of the taper). This means that NPT fittings should be burr-free and lubricated using a lubricating material like lubricating paste or tape. The use of tape also helps to limit corrosion on the threads, which otherwise can make future disassembly nearly impossible.
Commonly used sizes are 1⁄8, 1⁄4, 3⁄8, 1⁄2, 3⁄4, 1, 1 1⁄4, 1 1⁄2, and 2 inch, appearing on pipes and fittings by most U.S. suppliers. Sizes smaller than 1⁄8 inch are occasionally used for compressed air, while sizes larger than 2 inches are uncommon, due to the use of alternative methods of joining that are used with these larger sizes