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- Valve abstract "A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically valves fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure.The simplest, and very ancient, valve is simply a freely hinged flap which drops to obstruct fluid (gas or liquid) flow in one direction, but is pushed open by flow in the opposite direction. This is called a check valve, as it prevents or "checks" the flow in one direction.Valves have many uses, including controlling water for Irrigation, industrial uses for controlling processes, residential uses such as on / off & pressure control to dish and clothes washers & taps in the home. Even aerosols have a tiny valve built in. Valves are also used in the military & transport sectors.Valves are found in virtually every industrial process, including water & sewage processing, mining, power generation, processing of oil, gas & petroleum, food manufacturing, chemical & plastic manufacturing and many other fields.People in developed nations use valves in their daily lives, including plumbing valves, such as taps for tap water, gas control valves on cookers, small valves fitted to washing machines and dishwashers, safety devices fitted to hot water systems, and poppet valves in car engines.In nature there are valves, for example one-way valves in veins controlling the blood circulation, & heart valves controlling the flow of blood in the chambers of the heart and maintaining the correct pumping action.Valves may be operated manually, either by a handle, lever, pedal or wheel. Valves may also be automatic, driven by changes in pressure, temperature, or flow. These changes may act upon a diaphragm or a piston which in turn activates the valve, examples of this type of valve found commonly are safety valves fitted to hot water systems or boilers.More complex control systems using valves requiring automatic control based on an external input (i.e., regulating flow through a pipe to a changing set point) require an actuator. An actuator will stroke the valve depending on its input and set-up, allowing the valve to be positioned accurately, and allowing control over a variety of requirements.".
- Valve thumbnail Water_valves_with_spigots.jpg?width=300.
- Valve wikiPageExternalLink eAbsperrventil.html.
- Valve wikiPageExternalLink ISO-15926-4_2007.
- Valve wikiPageExternalLink types-of-valves.html.
- Valve wikiPageExternalLink Valve_Symbols.
- Valve wikiPageID "32754".
- Valve wikiPageRevisionID "594809056".
- Valve hasPhotoCollection Valve.
- Valve oneSource "December 2011".
- Valve refimprove "December 2011".
- Valve subject Category:Piping.
- Valve subject Category:Plumbing.
- Valve subject Category:Valves.
- Valve subject Category:Water_industry.
- Valve comment "A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically valves fittings, but are usually discussed as a separate category.".
- Valve label "Armatur".
- Valve label "Armatura wodna".
- Valve label "Valve".
- Valve label "Valvola (idraulica)".
- Valve label "Vanne".
- Valve label "Ventiel (techniek)".
- Valve label "Válvula".
- Valve label "Трубопроводная арматура".
- Valve label "صمام".
- Valve label "バルブ".
- Valve label "閥門".
- Valve sameAs Armatur.
- Valve sameAs Válvula.
- Valve sameAs Balbula.
- Valve sameAs Vanne.
- Valve sameAs Armatur.
- Valve sameAs Valvola_(idraulica).
- Valve sameAs バルブ.
- Valve sameAs 밸브.
- Valve sameAs Ventiel_(techniek).
- Valve sameAs Armatura_wodna.
- Valve sameAs m.080t7.
- Valve sameAs Q208443.
- Valve sameAs Q208443.
- Valve wasDerivedFrom Valve?oldid=594809056.
- Valve depiction Water_valves_with_spigots.jpg.
- Valve isPrimaryTopicOf Valve.
