Threaded Pipe Fittings Dimensions Chart

Socket weld and threaded pipe fittings are forged products and classified based on their pressure temperature rating.

Threaded pipe fittings dimensions chart. Threading all fittings shall be threaded with american national standard pipe threads ansi asme b1 20 1 and shall have taper threads except wrought. Forged steel pipe fittings npt class 6000. Each thread size has a defined number of threads per inch tpi. The taper rate for all npt threads is 1 16 3 4 inch per foot measured by the change of diameter of the pipe thread over distance.

As you can see in the following charts there are many sizes to choose from. There are two types of bsp thread available. Forged 316ss pipe fittings socket weld ansi b16 11 2000 3000. Use this guide to help you find the pipe and fitting sizes you need for your next project.

Class 150 malleable iron threaded fittings have no pressure class markings. Learn more about hydraulic fitting threads. The national fluid power association nfpa does not recommend the. They are available from nps 1 8 to 4.

But to actually determine the size of a pipe the outside diameter of each pipe or fitting must be measured and compared to the table for size identification. Bspt is british standard pipe taper thread. Pipe fitting product line uê i l iê à ê iê ìì ã threaded fittings class 150 standard class 300 xs xh uê ãìê à ê iê ìì ã threaded fittings class 125 standard class 250 extra heavy flanged fittings class 125 standard class 250 extra heavy drainage fittings uê ê ìii ê ìì ã. Fitting thread size chart the following chart is intended as a quick reference guide for thread size by dash size.

British standard pipe bsp has been use as standard in plumbing and pipe fittings. One is parallel threads or we can say straight threads and second one is taper thread. Fittings can be just as confusing. A half inch plastic elbow for example has an outside diameter of about 1 1 4 inches.

The 3 4 npt pipe thread has 14 threads per. National standard taper pipe threads size npt chart includes both external and internal pipe thread data. Forged steel pipe fittings npt ansi b16 11 class 2000 3000. If additional sealing is required teflon and pipe dope can be applied.

The angle between the taper and the center axis of the pipe is 1 47 24 1 7899. These fittings are available in four pressure temperature rating class. 2000 class fittings are available in only in threaded type. The 3 way corner fitting splits pipe into three directions and is designed for use in corners.

Below is our extensive pvc pipe fittings guide with a series of diagrams and dimension charts. American connections national pipe tapered fuel nptf the male and female threads connect and a seal is formed when the two are mated together i e. Their inside diameters must be large enough to fit over the pipe s outside diameter. Socket weld and threaded pipe fittings.

This is known as a dry seal thread. Click above to shop all fittings or try our search. For example a 3 4 npt pipe thread has an outside diameter of 1 050 inches.