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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. National pipe thread - Wikipedia

    en.wikipedia.org/wiki/National_pipe_thread

    The standard for Nominal Pipe Size (often abbreviated NPS, which should not be confused with the abbreviation NPS for the straight thread form standard) is loosely related to the inside diameter of Schedule 40 series of sizes. Because of the pipe wall thickness of Schedule pipe, the actual diameter of the NPT threads is larger than the Nominal ...

  4. Pipeline - Wikipedia

    en.wikipedia.org/wiki/Pipeline

    HDPE pipeline on a mine site in Australia. A pipeline is a system of pipes for long-distance transportation of a liquid or gas, typically to a market area for consumption. The latest data from 2014 gives a total of slightly less than 2,175,000 miles (3,500,000 km) of pipeline in 120 countries around the world. [1]

  5. Pipe insulation - Wikipedia

    en.wikipedia.org/wiki/Pipe_insulation

    The application of thermal pipe insulation introduces thermal resistance and reduces the heat flow. Thicknesses of thermal pipe insulation used for saving energy vary, but as a general rule, pipes operating at more-extreme temperatures exhibit a greater heat flow and larger thicknesses are applied due to the greater potential savings. [3]

  6. Friction loss - Wikipedia

    en.wikipedia.org/wiki/Friction_loss

    Jean Le Rond d'Alembert, Nouvelles expériences sur la résistance des fluides, 1777. In fluid dynamics, friction loss (or frictional loss) is the head loss that occurs in a containment such as a pipe or duct due to the effect of the fluid's viscosity near the surface of the containment.

  7. Welding - Wikipedia

    en.wikipedia.org/wiki/Welding

    It is still widely used for welding pipes and tubes, as well as repair work. [ 18 ] The equipment is relatively inexpensive and simple, generally employing the combustion of acetylene in oxygen to produce a welding flame temperature of about 3100 °C (5600 °F). [ 18 ]

  8. Electrical conduit - Wikipedia

    en.wikipedia.org/wiki/Electrical_conduit

    Aluminum conduit, similar to galvanized steel conduit, is a rigid tube, generally used in commercial and industrial applications where a higher resistance to corrosion is needed. Such locations would include food processing plants, where large amounts of water and cleaning chemicals would make galvanized conduit unsuitable.

  9. Keystone Pipeline - Wikipedia

    en.wikipedia.org/wiki/Keystone_Pipeline

    The pipeline, from Hardisty, Alberta, Canada, to Patoka, Illinois, United States, became operational in June 2010. [40] Later that year, the South Dakota Public Utilities Commission granted a permit to proceed. [41] and in March 2010, the National Energy Board approved the project. [26] [42] [43]

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