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negative pressure relief valve

См. также в других словарях:

  • negative pressure relief valve — A relief valve in an aircraft pressurization system that prevents the pressure in the cabin from becoming lower than the ambient outside pressure. The cabin air pressure safety valve combines functions of over pressure relief valve, vacuum relief …   Aviation dictionary

  • Pressure relief valve — A pressure relief valve is a safety device that relieve in case of overpressure in vessel or piping. The generic term is or pressure relief Valve (PRV) or pressure safety valve (PSV).Main types of pressure relief valves include: *Relief valve… …   Wikipedia

  • Relief valve — The relief valve is a type of valve used to control or limit the pressure in a system or vessel which can build up by a process upset, instrument or equipment failure, or fire. The pressure is relieved by allowing the pressurised fluid to flow… …   Wikipedia

  • suction relief valve — A control valve that provides constant negative pressure by opening the system to the outside air when the vacuum rises above the preset value. Some gyro instruments (air driven direction indicator, or DI, artificial horizons, etc.) are operated… …   Aviation dictionary

  • valve — A device used to either open or close an opening to allow or prevent the flow of a liquid or gas from one place to another. There are many different types. See ABS relay valve accumultor valve air valve carburetor air control valve air gulp valve …   Dictionary of automotive terms

  • pressure — [1] The force due to the weight of a substance exerted over the area the substance occupies. In metric measure, it is the force acting on each square metre. To calculate pressure, divide the force (in newtons) by the area (in square metres). It… …   Dictionary of automotive terms

  • Safety valve — A safety valve is a valve mechanism for the automatic release of a gas from a boiler, pressure vessel, or other system when the pressure or temperature exceeds preset limits. It is part of a bigger set named pressure safety valves (PSV) or… …   Wikipedia

  • Poppet valve — A poppet valve is a valve consisting of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The shaft guides the plug portion by sliding through a valve guide. In most… …   Wikipedia

  • Druckkapsel — Outflow Valve und Overpressure Relief Valve einer B737 800 Cabin Pressure and Bleed Air Control Panels einer B737 800 Unter einer Druckkabine versteht man in der Luft und …   Deutsch Wikipedia

  • Ground pressurisation — Outflow Valve und Overpressure Relief Valve einer B737 800 Cabin Pressure and Bleed Air Control Panels einer B737 800 Unter einer Druckkabine versteht man in der Luft und …   Deutsch Wikipedia

  • Hermetisierter Kabine — Outflow Valve und Overpressure Relief Valve einer B737 800 Cabin Pressure and Bleed Air Control Panels einer B737 800 Unter einer Druckkabine versteht man in der Luft und …   Deutsch Wikipedia

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