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 diurnal Lepidoptera.

Note: [See Illust. under {Aphrodite}.] [1913 Webster]

{Asclepias butterfly}. See under {Asclepias}.

{Butterfly fish} (Zo["o]l.), the ocellated blenny ({Blennius ocellaris}) of Europe. See {Blenny}. The term is also applied to the flying gurnard.

{Butterfly shell} (Zo["o]l.), a shell of the genus {Voluta}.

{Butterfly valve} (Mech.), a kind of double clack valve, consisting of two semicircular clappers or wings hinged to a cross rib in the pump bucket. When open it somewhat resembles a butterfly in shape. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • 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

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”