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NPT Thread Chart for basic dimensions of general purpose NPT pipe threads (inch) according to ANSI/ASME B1.20.1 standard.
- NPT Thread Calculator
NPT Thread Calculator for NPT thread dimensions according to...
- NPT Thread Calculator
NPT Thread Calculator for NPT thread dimensions according to ANSI/ASME B1.20.1 standard. - For left hand threads, include LH to the designation. (Example: 1/4 - 18 NPT - LH) - For pressure-tight joints, it is intended that taper pipe threads be made up wrench-tight with a sealant.
The Jargon, calculations, and charts that define NPT threads are very different compared with standard metric and inch threads. This webpage will explain the difference between the various series, how each parameter is defined, and show how to find the correct basic dimensions and tolerances for each thread.
Nominal size (inside diameter) Actual OD. Threads per inch. Length of engagement (tightened by hand) Hand tight turns. Wrench makeup turns. Length of effective thread.
Get all the dimensions for NPT threads using our free NPT and Pipe Thread Calculator. This NPT Calculator makes thread dimensions easy.
National Standard Taper Pipe Threads Size NPT Chart - Includes both External and internal Pipe Thread Data. 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.
4 Νοε 2012 · NPT and NPTF pipe threads - dimensions according ANSI/ASME B1.20.1/3. NPT - National Pipe Thread Tapered - is a U.S. standard for tapered threads used to join pipes and fittings is defined by ANSI B1.20.1 Pipe Threads, General Purpose, Inch.
