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1/2 - 14 NPTF - DrySeal (Fuel) Pipe Thead Dimensions. This page provided the thread dimensions of 1/2 - 14 NPTF. NPTF stands for National Pipe Thread Fuel, based on ASTM B1.20.3. It is also called Dryseal Pipe Thread. It is a variation of the more popular NPT thread standard based on ASTM B1.20.1.
Basic Dimensions Chart – NPTF External Threads. Dimensions are in Inches. To view metric values, click the Thread Description link. There are a total of 20 parameters for each thread size. The below charts show only the main ones. To view all the parameters, click the thread description link.
This page provided the thread dimensions of 1 - 11 1/2 NPTF. NPTF stands for National Pipe Thread Fuel, based on ASTM B1.20.3. It is also called Dryseal Pipe Thread. It is a variation of the more popular NPT thread standard based on ASTM B1.20.1.
American Taper Pipe Thread for Dryseal joint without sealant compound. N ational P ipe T aper F uel. The flank angle is 60°, the profile was originated by William Sellers. Nominal Diameter. Major Diameter. mm. Tapping. Drill Size.
NPT = symbol for the thread series and form (i.e., National (American)Standard Pipe, Taper) Basic dimensions are given to four or five decimal places to eliminate errors when calculating gauge dimensions, they do not imply a greater degree of precision than is normally obtainable.
Tapered thread profile seals by metal to metal interference fit, usually requires sealing compound for pressure tight connections. Pitch and diameter are measured in inches. Taper angle is 0.75” per foot or 1° 47’. Thread angle is 60°. NPT NPTF Thread Specifications.
Basic Dimensions for L1 Plug Gages, NPTF Basic Dimensions for L3 Plug Gages Basic Length L1 Small End Basic Dim. at L1 Plane Min. Range Basic Range Max. Range Basic Length L1+L3 Four Threads ... 1/2-14.3200 .75843 .80815 .77843 .82815 .24857 .29619 .29619 .34381 .34381 .39143 .5343 .7451 .7783 .2857 .46287 .51049 .51049 .55811 .55811 .60573
