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  2. Nominal Pipe Size - Wikipedia

    en.wikipedia.org/wiki/Nominal_Pipe_Size

    Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...

  3. British Standard Pipe - Wikipedia

    en.wikipedia.org/wiki/British_Standard_Pipe

    British Standard Pipe ( BSP) is a set of technical standards for screw threads that has been adopted internationally for interconnecting and sealing pipes and fittings by mating an external ( male) thread with an internal (female) thread. It has been adopted as standard in plumbing and pipe fitting, except in North America, where NPT and ...

  4. PPS submachine gun - Wikipedia

    en.wikipedia.org/wiki/PPS_submachine_gun

    PPS submachine gun. The PPS ( Russian: ППС – "Пистолет-пулемёт Судаева" or "Pistolet-pulemyot Sudayeva", in English: "Sudayev's submachine-gun") is a family of Soviet submachine guns chambered in 7.62×25mm Tokarev, developed by Alexei Sudayev as a low-cost personal defense weapon for reconnaissance units, vehicle ...

  5. Real versus nominal value - Wikipedia

    en.wikipedia.org/wiki/Real_versus_nominal_value

    A "3 + 1 ⁄ 2-inch" floppy disk's standard dimension is 90 mm, or 3.54 inches, and is advertised to hold "1.44 megabytes" although its capacity is 1,474,560 bytes (1,440 KB or 1.40625 MB). A "34-inch pipe" in the Nominal Pipe Size system has no dimensions that are exactly 0.75 inches.

  6. Hazen–Williams equation - Wikipedia

    en.wikipedia.org/wiki/Hazen–Williams_equation

    Hazen–Williams equation. The Hazen–Williams equation is an empirical relationship which relates the flow of water in a pipe with the physical properties of the pipe and the pressure drop caused by friction. It is used in the design of water pipe systems [ 1] such as fire sprinkler systems, [ 2] water supply networks, and irrigation systems.

  7. Coupling (piping) - Wikipedia

    en.wikipedia.org/wiki/Coupling_(piping)

    Coupling (piping) In piping and plumbing, a coupling (or coupler) is a very short length of pipe or tube, with a socket at one or both ends that allows two pipes or tubes to be joined, welded ( steel ), brazed or soldered ( copper, brass etc.) together. Alternatively it is a short length of pipe with two female National pipe threads (NPT) (in ...

  8. National pipe thread - Wikipedia

    en.wikipedia.org/wiki/National_pipe_thread

    National pipe taper fuel (NPTF) National Pipe Taper Fuel ( NPTF, also called Dryseal American National Standard Taper Pipe Thread, defined by ASME B1.20.3) is designed to provide a more leak-free seal without the use of PTFE tape (often referred to by the popular brand name "Teflon") or another sealant compound.

  9. Week 7 Fantasy Football Full-PPR Rankings - AOL

    www.aol.com/sports/week-7-fantasy-football-full...

    Diggs has four 20+ fantasy-point games this season (full-PPR), and a monster 36 full-ppr-point game against the Miami Dolphins in Week 4. He is currently the second-best wide receiver in full-PPR ...