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atmospheric pressure relief valve

См. также в других словарях:

  • 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

  • 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

  • Pressure cooking — is a method of cooking in a sealed vessel that does not permit air or liquids to escape below a preset pressure. Because the boiling point of water increases as the pressure increases, the pressure built up inside the cooker allows the liquid in… …   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

  • Reduced pressure zone device — A Reduced Pressure Zone Device (RPZD, RPZ or RPZ valve) is a type of backflow prevention device used to protect water supplies from contamination. An RPZD is considered suitable for high hazard applications, that is, where the consequence of… …   Wikipedia

  • Reduced pressure backflow prevention assembly — A reduced pressure (RP) backflow prevention device is a device used to protect the potable water supply from contaminated water. An RP valve consists of an automatic pressure relief valve in between two check valves. The pressure relief valve… …   Wikipedia

  • Compilation of atmospheric dispersion models — Atmospheric dispersion models are computer programs that use mathematical algorithms to simulate how pollutants in the ambient atmosphere disperse and, in some cases, how they react in the atmosphere. The dispersion models are used to estimate or …   Wikipedia

  • List of atmospheric dispersion models — Atmospheric dispersion models are computer programs that use mathematical algorithms to simulate how pollutants in the ambient atmosphere disperse and, in some cases, how they react in the atmosphere. Contents 1 U.S. Environmental Protection… …   Wikipedia

  • pressure — noun 1 force produced by pressing ADJECTIVE ▪ gentle, light ▪ firm ▪ downward VERB + PRESSURE ▪ apply, exe …   Collocations dictionary

  • 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

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