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pressure-operated relief valve

См. также в других словарях:

  • Pilot-operated relief valve — A Pilot Operated Relief Valve is used to relieve large flows with small pressure differential. [cite web|title=Pressure control valves part 1|url=http://www.hydraulicspneumatics.com/200/FPE/Valves/Article/True/6411/Valves 070111… …   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

  • 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

  • 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

  • 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 — This article is about the flow control device. For the game developer, see Valve Corporation. For the electronic component, see Vacuum tube. For other uses, see Valve (disambiguation). These water valves are operated by handles. A valve is a… …   Wikipedia

  • 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

  • cabin pressurization safety valve — A combination pressure and vacuum valve meant to prevent cabin pressurization from exceeding safe limits. The valve normally combines the functions of overpressure relief valve, vacuum relief valve, and dump valve. The overpressure relief valve… …   Aviation dictionary

  • safety valve — [1] A valve designed to open and relieve the pressure within a container when container pressure exceeds a predetermined level. [2] Self operated, quick opening valve used for fast relief of excessive pressures …   Dictionary of automotive terms

  • Loss of coolant accident — A loss of coolant accident (LOCA) is a mode of failure for a nuclear reactor; if not managed effectively, the results of a LOCA could result in reactor core damage. Each nuclear plant s Emergency Core Cooling System (ECCS) exists specifically to… …   Wikipedia

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