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  2. Cast iron pipe - Wikipedia

    en.wikipedia.org/wiki/Cast_iron_pipe

    Cast iron pipe is pipe made predominantly from gray cast iron. It was historically used as a pressure pipe for transmission of water, gas and sewage, and as a water drainage pipe during the 17th, 18th, 19th and 20th centuries. In many modern applications, cast iron pipe has been replaced by ductile iron pipe, but this newer product is still ...

  3. 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.

  4. Manning formula - Wikipedia

    en.wikipedia.org/wiki/Manning_formula

    Note: the Strickler coefficient is the reciprocal of Manning coefficient: Ks =1/ n, having dimension of L 1/3 /T and units of m 1/3 /s; it varies from 20 m 1/3 /s (rough stone and rough surface) to 80 m 1/3 /s (smooth concrete and cast iron). The discharge formula, Q = A V, can be used to rewrite Gauckler–Manning's equation by substitution for V.

  5. Iron pipe size - Wikipedia

    en.wikipedia.org/wiki/Iron_pipe_size

    Iron Pipe Size (IPS or I.P.S.) pipe sizing system based on the inside diameter (ID) of pipe. It was widely used from the early 19th century to the mid 20th century and is still in use by some industries, including major PVC pipe manufacturers, as well as for some legacy drawings and equipment. The iron pipe size standard came into being early ...

  6. Uniform Plumbing Code - Wikipedia

    en.wikipedia.org/wiki/Uniform_Plumbing_Code

    Section 3 does not allow any construction approval of the Inspector of Plumbing and Drainage. A written description of the proposed work is to be submitted in advance to the inspector for his approval. Section 16 mandates the use of cast iron for interior pipes and Section 12 mandates the use of "vitrified stone ware pipes" that "run under ...

  7. 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. " 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 diameter).

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