butterfly valve

[1] A nut with wings to be turned by thumb and finger. Sometimes called a "wing nut."
[1] A small metal disc located in the carburetor that controls the flow of air into the carburetor. It is so named due to its resemblance to the insect of the same name.

Dictionary of automotive terms. 2015.

Look at other dictionaries:

  • Butterfly valve — Butterfly But ter*fly , n.; pl. {Butterflies}. [Perh. from the color of a yellow species. AS. buter fl[=e]ge, buttor fle[ o]ge; cf. G. butterfliege, D. botervlieg. See {Butter}, and {Fly}.] (Zo[ o]l.) A general name for the numerous species of… …   The Collaborative International Dictionary of English

  • butterfly valve — n. a disk shaped valve turning on an axis along its diameter, serving esp. as a damper in a pipe or as a choke or throttle in a carburetor …   English World dictionary

  • Butterfly valve — A butterfly valve is a type of flow control device, typically used to regulate a fluid flowing through a section of pipe. The valve is similar in operation to a ball valve. A flat circular plate is positioned in the center of the pipe. The plate… …   Wikipedia

  • butterfly valve — but′terfly valve n. 1) mac a clack valve having two flaps with a common hinge 2) mac a valve, as the throttle valve in a carburetor, that swings about a central axis across its face • Etymology: 1860–65 …   From formal English to slang

  • butterfly valve — 1. a clack valve having two flaps with a common hinge. 2. a valve, as the throttle valve in a carburetor, that swings about a central axis across its face. [1860 65] * * * …   Universalium

  • butterfly valve — noun Date: 1846 1. a valve consisting of two semicircular clappers hinged to a cross rib that permits fluid flow in only one direction 2. a damper or valve in a pipe consisting of a disk turning on a bisecting axis …   New Collegiate Dictionary

  • butterfly valve — A valve consisting of a disc turning on its diametrical axis to control the flow of fluid in a round tube or pipe. When the valve is across the tube, the fluid flow is shut; and when it is parallel, the fluid is allowed to flow. Typically used in …   Aviation dictionary

  • butterfly valve — noun a valve in a carburetor that consists of a disc that turns and acts as a throttle • Hypernyms: ↑valve • Part Holonyms: ↑carburetor, ↑carburettor …   Useful english dictionary

  • butterfly valve — noun a valve consisting of a rotating circular plate or a pair of hinged semicircular plates, mounted inside a pipe …   English new terms dictionary

  • butterfly valve — /ˈbʌtəflaɪ vælv/ (say butuhfluy valv) noun 1. a double clackvalve (as in a lift pump piston) which consists of two semicircular clappers hinged to a cross rib. 2. a damper or throttle valve in a pipe which consists of a disc turning on a… …   Australian English dictionary

  • butterfly valve — Смотри поворотная заслонка …   Энциклопедический словарь по металлургии

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