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  2. Ball valve - Wikipedia

    en.wikipedia.org/wiki/Ball_valve

    A ball valve is a flow control ... Other types of quarter-turn valves include the butterfly valve and ... Some of the commonly used materials include brass, stainless ...

  3. Plug valve - Wikipedia

    en.wikipedia.org/wiki/Plug_valve

    This makes this kind of plug valve a quarter-turn valve. There is often a mechanism limiting motion of the handle to a quarter turn, but not in glass stopcocks. Slightly conically tapered metal (often brass) plug valves are often used as simple shut-off valves in household natural gas lines.

  4. Valve - Wikipedia

    en.wikipedia.org/wiki/Valve

    If the handle is turned ninety degrees between operating positions, the valve is called a quarter-turn valve. Butterfly, ball valves, and plug valves are often quarter-turn valves. If the handle is circular with the stem as the axis of rotation in the center of the circle, then the handle is called a handwheel.

  5. Butterfly valve - Wikipedia

    en.wikipedia.org/wiki/Butterfly_valve

    Unlike a ball valve, the disc is always present within the flow, so it induces a pressure drop, even when open. A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the disc is rotated a quarter turn. The "butterfly" is a metal disc mounted on a rod. When the valve is ...

  6. Tap (valve) - Wikipedia

    en.wikipedia.org/wiki/Tap_(valve)

    A gas tap is a specific form of ball valve used in residential, commercial, and laboratory applications for coarse control of the release of fuel gases (such as natural gas, coal gas, and syngas). Like all ball valves its handle will parallel the gas line when open and be perpendicular when closed, making for easy visual identification of its ...

  7. List of auto parts - Wikipedia

    en.wikipedia.org/wiki/List_of_auto_parts

    This is a list of auto parts, which are manufactured components of automobiles.This list reflects both fossil-fueled cars (using internal combustion engines) and electric vehicles; the list is not exhaustive.