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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. List of countries by tariff rate - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    This is a list of countries by tariff rate. The list includes sovereign states and self-governing dependent territories based upon the ISO standard ISO 3166-1. Import duty refers to taxes levied on imported goods, capital and services. The level of customs duties is a direct indicator of the openness of an economy to world trade.

  5. 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]

  6. 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.

  7. Lead service line - Wikipedia

    en.wikipedia.org/wiki/Lead_service_line

    A lead service line (LSL, also known as lead service pipe, [1] and lead connection pipe [2]) is a pipe made of lead which is used in potable water distribution to connect a water main to a user's premises. Lead exposure is a public health hazard as it causes developmental effects in fetuses, infants, and young children. It also has other health ...

  8. 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]

  9. Stainless steel - Wikipedia

    en.wikipedia.org/wiki/Stainless_steel

    There is a secondary market that recycles usable scrap for many stainless steel markets. The product is mostly coil, sheet, and blanks. This material is purchased at a less-than-prime price and sold to commercial quality stampers and sheet metal houses. The material may have scratches, pits, and dents but is made to the current specifications.