butterfly damper

butterfly damper
a damper, as in a flue, that rotates about a central axis across its face.

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Universalium. 2010.

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  • butterfly damper — noun : butterfly valve 2 * * * a damper, as in a flue, that rotates about a central axis across its face. * * * butterfly damper, a thin plate of metal which turns on an axis across a pipe so that it controls the amount of the passage left open… …   Useful english dictionary

  • 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

  • damper-type fire valve — A spring loaded butterfly automatic valve that shuts off air supply to the combustion heater if there is a fire or an overheating condition occurs. See damper valve …   Aviation dictionary

  • damper valve — A butterfly valve in an air duct. When the valve is open, the air flows through the duct; when it is closed, the butterfly valve is perpendicular to the airflow and does not permit any air to flow into the system. These valves are normally used… …   Aviation dictionary

  • 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 — /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… …  

  • Mission blue butterfly habitat conservation — An artist s rendering of a mission blue perched upon a lupine The U.S. Fish and Wildlife Service (USFWS) has a number of programs aimed at Mission blue butterfly habitat conservation, which include lands traditionally inhabited by the mission… …   Wikipedia

  • ГОСТ Р 53682-2009: Установки нагревательные для нефтеперерабатывающих заводов. Общие технические требования — Терминология ГОСТ Р 53682 2009: Установки нагревательные для нефтеперерабатывающих заводов. Общие технические требования оригинал документа: 3.2 анкер (anchor, tieback): Металлическое или огнеупорное приспособление, которое фиксирует расположение …   Словарь-справочник терминов нормативно-технической документации

  • поворотный шибер — 3.11 поворотный шибер (butterfly damper): Однолопастной шибер, лопасть которого вращается вокруг оси. Источник: ГОСТ Р 53682 2009: Установки нагревательные для нефтеперерабатывающих заводов. Общие технические требования …   Словарь-справочник терминов нормативно-технической документации

  • butterflyvalve — butterfly valve top:open valve bottom: closed valve Precision Graphics n. 1. A disk turning on a diametrical axis inside a pipe, used as a throttle valve or damper. 2. A valve composed of two semicircular plates hinged on a common spindle, used… …   Universalium

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