Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Valve> ?p ?o }
- 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 word is derived from the Latin valva, the moving part of a door, in turn from volvere, to turn, roll.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 and pressure control to dish and clothes washers and taps in the home. Even aerosols have a tiny valve built in. Valves are also used in the military and transport sectors.Valves are found in virtually every industrial process, including water and sewage processing, mining, power generation, processing of oil, gas and petroleum, food manufacturing, chemical and 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, and 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 wikiPageLength "24664".
- Valve wikiPageOutDegree "196".
- Valve wikiPageRevisionID "678830524".
- Valve wikiPageWikiLink Acrylonitrile_butadiene_styrene.
- Valve wikiPageWikiLink Actuator.
- Valve wikiPageWikiLink Adhesive.
- Valve wikiPageWikiLink Aerosol_can.
- Valve wikiPageWikiLink Aerosol_spray.
- Valve wikiPageWikiLink Air_pressure.
- Valve wikiPageWikiLink Alloy_20.
- Valve wikiPageWikiLink Alloy_steel.
- Valve wikiPageWikiLink Atmospheric_pressure.
- Valve wikiPageWikiLink Ball_valve.
- Valve wikiPageWikiLink Blood_circulation.
- Valve wikiPageWikiLink Boiler.
- Valve wikiPageWikiLink Brass.
- Valve wikiPageWikiLink Bronze.
- Valve wikiPageWikiLink Butterfly_valve.
- Valve wikiPageWikiLink Casing_(borehole).
- Valve wikiPageWikiLink Cast_iron.
- Valve wikiPageWikiLink Category:Piping.
- Valve wikiPageWikiLink Category:Plumbing.
- Valve wikiPageWikiLink Category:Valves.
- Valve wikiPageWikiLink Category:Water_industry.
- Valve wikiPageWikiLink Cement.
- Valve wikiPageWikiLink Chambers_of_the_heart.
- Valve wikiPageWikiLink Check_valve.
- Valve wikiPageWikiLink Circulatory_system.
- Valve wikiPageWikiLink Coil_spring.
- Valve wikiPageWikiLink Compression_fitting.
- Valve wikiPageWikiLink Control_room.
- Valve wikiPageWikiLink Control_valves.
- Valve wikiPageWikiLink Degasification.
- Valve wikiPageWikiLink Diaphragm_(mechanical_device).
- Valve wikiPageWikiLink Directional_control_valve.
- Valve wikiPageWikiLink Dishwasher.
- Valve wikiPageWikiLink Disposable.
- Valve wikiPageWikiLink EPDM.
- Valve wikiPageWikiLink EPDM_rubber.
- Valve wikiPageWikiLink Elastomer.
- Valve wikiPageWikiLink Elastomers.
- Valve wikiPageWikiLink Electric_motor.
- Valve wikiPageWikiLink Endobronchial_valve.
- Valve wikiPageWikiLink FKM.
- Valve wikiPageWikiLink Fiberglass.
- Valve wikiPageWikiLink Fill_valve.
- Valve wikiPageWikiLink Flange.
- Valve wikiPageWikiLink Flow_measurement.
- Valve wikiPageWikiLink Flow_meter.
- Valve wikiPageWikiLink Force.
- Valve wikiPageWikiLink Four-way_valve.
- Valve wikiPageWikiLink Galvanization.
- Valve wikiPageWikiLink Gas_cylinder.
- Valve wikiPageWikiLink Gasket.
- Valve wikiPageWikiLink Gaskets.
- Valve wikiPageWikiLink Gate_valve.
- Valve wikiPageWikiLink Globe_valve.
- Valve wikiPageWikiLink Glue.
- Valve wikiPageWikiLink Gunmetal.
- Valve wikiPageWikiLink Hand.
- Valve wikiPageWikiLink Handle.
- Valve wikiPageWikiLink Handle_(grip).
- Valve wikiPageWikiLink Hastelloy.
- Valve wikiPageWikiLink Haynes_International.
- Valve wikiPageWikiLink Heart.
- Valve wikiPageWikiLink Heart_valve.
- Valve wikiPageWikiLink High-tolerance.
- Valve wikiPageWikiLink Hinge.
- Valve wikiPageWikiLink Hood_(vehicle).
- Valve wikiPageWikiLink Hot_water_system.
- Valve wikiPageWikiLink Hydraulic.
- Valve wikiPageWikiLink Hydraulics.
- Valve wikiPageWikiLink Hydrofluoric_acid.
- Valve wikiPageWikiLink Hydrogen_valve.
- Valve wikiPageWikiLink Hydrostatic_test.
- Valve wikiPageWikiLink Hydrotest.
- Valve wikiPageWikiLink ISO_15926.
- Valve wikiPageWikiLink Inch.
- Valve wikiPageWikiLink Inconel.
- Valve wikiPageWikiLink Irrigation.
- Valve wikiPageWikiLink Leak.
- Valve wikiPageWikiLink Lever.
- Valve wikiPageWikiLink Manufacture.
- Valve wikiPageWikiLink Manufacturing.
- Valve wikiPageWikiLink Metal.
- Valve wikiPageWikiLink Mini-pump_dispenser.
- Valve wikiPageWikiLink Monel.
- Valve wikiPageWikiLink Needle_valve.
- Valve wikiPageWikiLink Nickel.
- Valve wikiPageWikiLink Ninety_degrees.
- Valve wikiPageWikiLink Nitrile_rubber.
- Valve wikiPageWikiLink Non-return_valve.
- Valve wikiPageWikiLink O-ring.