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  2. Pipe marking - Wikipedia

    en.wikipedia.org/wiki/Pipe_marking

    Example of pipe marking through colors and symbols (arrows) to indicated pipe contents (colors) and flow direction (arrows). Pipe marking on a natural gas pipe In the process industry , chemical industry , manufacturing industry , and other commercial and industrial contexts, pipe marking is used to identify the contents, properties and flow ...

  3. Organ stop - Wikipedia

    en.wikipedia.org/wiki/Organ_stop

    For example, an 8′ Gedeckt may also be made available as a 4′ Gedeckt, either on the same or a different manual. When both of these stops are selected and a key (for example, C 3) is pressed, two pipes of the same rank will sound: the pipe normally corresponding to the key played (C 3), and the pipe one octave above that (C 4).

  4. List of pipe organ stops - Wikipedia

    en.wikipedia.org/wiki/List_of_pipe_organ_stops

    the row of organ pipes used to create a particular sound, more appropriately known as a rank; the sound itself; Organ stops are sorted into four major types: principal, string, reed, and flute. This is a sortable list of names that may be found associated with electronic and pipe organ stops. Countless stops have been designed over the ...

  5. Mixture (organ stop) - Wikipedia

    en.wikipedia.org/wiki/Mixture_(organ_stop)

    A mixture is an organ stop, usually of principal tone quality, that contains multiple ranks of pipes including at least one mutation stop.It is designed to be drawn with a combination of stops that forms a complete chorus, for example, principals of 8 foot (8 ′), 4 ′, and 2 ′ pitches.

  6. Category:Piping - Wikipedia

    en.wikipedia.org/wiki/Category:Piping

    Pipe (fluid conveyance) Pipe bursting; Pipe Cutting; Pipe drift; Pipe flow; Pipe marking; Pipe network analysis; Pipe wrench; Pipeline; Pipeline video inspection; Piping and instrumentation diagram; Piping and plumbing fitting; Plastic pipework; Plug (sanitation) Process flow diagram

  7. Organ pipe - Wikipedia

    en.wikipedia.org/wiki/Organ_pipe

    An organ pipe is a sound-producing element of the pipe organ that resonates at a specific pitch when pressurized air (commonly referred to as wind) is driven through it. Each pipe is tuned to a note of the musical scale. A set of organ pipes of similar timbre comprising the complete scale is known as a rank; one or more ranks constitutes a stop.

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  9. Ophicleide (organ stop) - Wikipedia

    en.wikipedia.org/wiki/Ophicleide_(organ_stop)

    Ophicleide (/ ˈ ɒ f ɪ k l aɪ d / OFF-ih-klyde) and Contra Ophicleide are powerful pipe organ reed pipes used as organ stops. The name comes from the early brass instrument, the ophicleide, forerunner of the euphonium. The Ophicleide is generally at 16 ft pitch, and the Contra Ophicleide at 32 ft.