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2. National pipe thread - Wikipedia

   en.wikipedia.org/wiki/National_pipe_thread

   Download as PDF; Printable version ... American Society of Mechanical Engineers National Pipe Thread Taper (NPT) [5] Nominal pipe size Thread ... 3 ⁄ 8: 18 0. ...

3. List of thread standards - Wikipedia

   en.wikipedia.org/wiki/List_of_thread_standards

   Pipe Thread Form ANSI B1.20.3-1976 (R2013) Dryseal Pipe Threads (Inch) Pipe Thread Form ASME B1.20.7-1991 (R2013) Hose Coupling Screw Threads - Inch: Pipe Thread Form ASME B1.21M-1997 (R2013) Metric Screw Threads - MJ Profile: V Thread Form BS 84: Tables of BS Whitworth, BS Fine and BS Pipe Threads: V Thread Form (55°) 1 ⁄ 4 ″-20 BSW ISO ...

4. Unified Thread Standard - Wikipedia

   en.wikipedia.org/wiki/Unified_Thread_Standard

   Each thread in the series is characterized by its major diameter D maj and its pitch, P. UTS threads consist of a symmetric V-shaped thread. In any plane containing the thread axis, the flanks of the V have an angle of 60° to each other. The outermost 1 ⁄ 8 and the innermost 1 ⁄ 4 of the height H of the V-shape are cut off from the profile.

5. British Standard Pipe - Wikipedia

   en.wikipedia.org/wiki/British_Standard_Pipe

   Download as PDF; Printable version; ... At least 41 thread sizes have been defined, ... 8: 3.175 18.6800 474.472 18.5200 470.408 2

6. Propane, butane, and LPG container valve connections

   en.wikipedia.org/wiki/Propane,_butane,_and_LPG...

   Download as PDF; Printable version; In other projects ... NPT: 9.5 mm 3/8" No thread ... No thread Threaded connection W 14,8 x 1/18 (G.21) [clarification needed] EN ...

7. British Standard Whitworth - Wikipedia

   en.wikipedia.org/wiki/British_Standard_Whitworth

   Download as PDF; Printable version; ... Below is the historical thread size table, ... 13.3 14 3 ⁄ 8: 0.710 18.0 0.600 15.2 17 7 ...

8. Talk:National pipe thread - Wikipedia

   en.wikipedia.org/wiki/Talk:National_pipe_thread

   Does anyone have a good source on how to install NPT fittings? Evand 19:21, 8 February 2006 (UTC) The key standard is ANSI/ASME B1.20.1 "Pipe Threads, General Purpose (Inch)". Table 2 of that reference calls for 3 threads of make-up from hand-tight for pipes 2" and under (nominal), and 2 threads for pipes with nominal sizes over 2 inches.

9. Pipe (fluid conveyance) - Wikipedia

   en.wikipedia.org/wiki/Pipe_(fluid_conveyance)

   For pipe sizes of NPS 14 inch (DN 350) and greater the NPS size is the actual diameter in inches and the DN size is equal to NPS times 25 (not 25.4) rounded to a convenient multiple of 50. For example, NPS 14 has an OD of 14 inches or 355.60 millimetres, and is equivalent to DN 350.