pressure and vacuum relief valve

pressure and vacuum relief valve
дыхательный клапан (на резервуаре для хранения горючего)

Англо-русский словарь по авиационным и ракетным базам. - М.: Военное издательство министерства обороны Союза ССР. . 1962.

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  • 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

  • Vacuum breaker — A vacuum breaker is an attachment commonly placed on a bibcock valve or toilet or urinal flush valve, that prevents water from being sucked backward into the public water system. This prevents contamination should the public water system s… …   Wikipedia

  • Chemigation valve — A chemigation valve is an apparatus designed to protect water supplies from agricultural chemicals used during chemigation, the application of chemicals such as fertilizers and pesticides through irrigation water. Most chemigation valves consist… …   Wikipedia

  • 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

  • Vacuum flask — Thermos redirects here. For other uses, see Thermos (disambiguation). This article is about the vacuum insulated flask. For the flask used in filtration under vacuum, see Büchner flask. Domestic vacuum flask, used for maintaining the temperature… …   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 — 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

  • Business and Industry Review — ▪ 1999 Introduction Overview        Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …   Universalium


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