ARTIKELDIGITAL.COM

Valve Corporation, also known as Valve Software, is an American video game developer, publisher, hardware, and digital distribution company headquartered...

A valve is a device or natural object that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening...

video game studio Valve. It was launched as a software client in September 2003 to provide video game updates automatically for Valve's games and expanded...

instrument valve, for valves used in brass instruments Rotary valve, a valve using an internal rotor to select flow paths Piston valve, a valve using a piston...

The Presta valve (also French valve (FV) or Sclaverand valve) is a type of tire valve commonly found on high pressure bicycle inner tubes and is commonly...

The Schrader valve (also called American valve (AV)) is a type of pneumatic tire valve used on virtually every motor vehicle in the world today. The original...

heart valves closing in a healthy 16 year old girl. The stethoscope is at the tricuspid area. Problems playing this file? See media help. A heart valve (cardiac...

aortic valve is a valve in the heart of humans and most other animals, located between the left ventricle and the aorta. It is one of the four valves of the...

In internal combustion engines, a poppet valve (also sometimes called mushroom valve) is a valve typically used to control the timing and quantity of...

The mitral valve (/ˈmaɪtrəl/ MY-trəl), also known as the bicuspid valve or left atrioventricular valve, is one of the four heart valves. It has two cusps...

The Dunlop valve, (abbreviated as DV; also called a Woods valve, an English valve or a Blitz valve) is a type of pneumatic valve stem in use—mostly on...

A solenoid valve is an electromechanically operated valve used in heating systems, fuel pipelines, and industrial automation to regulate the flow of liquids...

Mitral valve prolapse murmur at mitral area Heart sounds of a 16-year-old girl diagnosed with mitral valve prolapse and mitral regurgitation. Auscultating...

headset developed by Valve. It was announced in November 2025 as part of a broader Steam hardware lineup and is a successor to the Valve Index. It is expected...

A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller. This enables the...

computer produced by Valve Corporation, designed to run games available on its Steam storefront. Built upon the experiences gained from Valve's earlier ventures...

(the flush valve seat) by water pressure. The user pushes a lever to flush the toilet, which lifts the flush valve from the valve seat. The valve then floats...

The Valve Index is a discontinued virtual reality headset created and manufactured by Valve. Announced on April 30, 2019, it was released on June 28 of...

variations) is a valve controlling the release of a fluid. Tap is used in the United Kingdom and most of the Commonwealth for any everyday type of valve, particularly...

Valve leakage refers to flow through a valve which is set in the 'off' state. The importance of valve leakage depends on what the valve is controlling...

alter the pitch instead of the valves used by other brass instruments. The valve trombone is an exception, using three valves similar to those on a trumpet...

A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to...

The ileocecal valve is a sphincter muscle valve that separates the small intestine and the large intestine. Its critical function is to limit the reflux...

Nasal valve collapse is a condition where airflow through the nose is restricted due to the narrowing or collapse of the nasal valves. Obstruction through...

A butterfly valve is a valve that isolates or regulates the flow of a fluid. The closing mechanism is a disk that rotates. Operation is similar to that...

A vacuum tube, electron tube, thermionic valve (British usage), or tube (North America) is a device that controls electric current flow in a high vacuum...

A gate valve, also known as a sluice valve, is a valve that opens by lifting a barrier (gate) out of the path of the fluid. Gate valves require very little...

An overhead valve engine, abbreviated (OHV) and sometimes called a pushrod engine, is a piston engine whose valves are located in the cylinder head above...

controls the operation of the intake and exhaust valves in an internal combustion engine. The intake valves control the flow of air/fuel mixture (or air alone...

choke valve or simply choke modifies the air pressure in the intake manifold, thereby altering the air–fuel ratio entering the engine. Choke valves are...

An Aspin valve consists of a cone-shaped metal part fitted to the cylinder head in an internal combustion engine. Aspin valves were first patented by...

An expansion valve is a valve used for different purposes: A valve used to control the expansion of steam: Expansion valve (steam engine) The best-known...

service valve is a valve used to separate one piece of equipment from another in any system where liquids or gases circulate. Two types of service valves are...

A relief valve or pressure relief valve (PRV) is a type of safety valve used to control or limit the pressure in a system; excessive pressure might otherwise...

Variable valve timing (VVT) is the process of altering the timing of a valve lift event in an internal combustion engine, and is often used to improve...

The sleeve valve is a type of valve mechanism for piston engines, distinct from the usual poppet valve. Sleeve valve engines saw use in a number of pre–World...

A valve job is the colloquial term for resurfacing the mating surfaces of the poppet valves and their respective valve seats that control the intake and...

Variable valve lift (VVL) is an automotive piston engine technology which varies the height a valve opens in order to improve performance, fuel economy...

Mitral Valve Prolapse murmur Heart sounds of a 16-year-old girl diagnosed with mitral valve prolapse and mitral regurgitation. Auscultating her heart,...

The pulmonary valve (sometimes referred to as the pulmonic valve) is a valve of the heart that lies between the right ventricle and the pulmonary artery...

Joy valve gear is a type of steam locomotive valve gear, designed by David Joy (3 March 1825 – 1903), Locomotive and Marine engineer, and patented (no...

A thermal expansion valve, or thermostatic expansion valve (often abbreviated as TEV, TXV, or TX valve), is a component in vapor-compression refrigeration...

Safety-valve organization or safety-valve institution is a term used in sociology to describe social organizations which serve to allow discontented individuals...

A Tesla valve, called a valvular conduit by its inventor, is a fixed-geometry passive check valve. It allows a fluid to flow preferentially in one direction...

A rotary valve (also called rotary-motion valve) is a type of valve in which the rotation of a passage or passages in a transverse plug regulates the flow...

developed by Valve. It debuted as the successor to GoldSrc in 2004 with the releases of Half-Life: Source, Counter-Strike: Source, and Half-Life 2. Valve used...

Valve is an American video game developer and publisher founded in 1996 by Gabe Newell and Mike Harrington. The company is based in Bellevue, Washington...

Aortic valve replacement is a cardiac surgery procedure whereby a failing aortic valve is replaced with an artificial heart valve. The aortic valve may need...

A safety valve is a valve that acts as a fail-safe. An example of safety valve is a pressure relief valve (PRV), which automatically releases a substance...

A multi-valve or multivalve four-stroke internal combustion engine is one where each cylinder has more than two valves – more than the minimum required...

An artificial heart valve is a one-way valve implanted into a person's heart to replace a heart valve that is not functioning properly (valvular heart...

A globe valve is a type of valve used for regulating flow in a pipeline, consisting of a movable plug or disc element and a stationary ring seat in a generally...

also known as a sidevalve engine or valve-in-block engine, is an internal combustion engine with its poppet valves contained within the engine block, instead...

Bicuspid aortic valve (BAV) is a form of heart disease in which two of the leaflets of the aortic valve fuse during development in the womb resulting...

their actuation in different directions. A desmodromic valve is a reciprocating engine poppet valve that is positively closed by a cam and leverage system...

Mitral valve prolapse murmur at mitral area Heart sounds of a 16-year-old girl diagnosed with mitral valve prolapse and mitral regurgitation. Auscultating...

A valve actuator is the mechanism for opening and closing a valve. Manually operated valves require someone in attendance to adjust them using a direct...

each stage. The terms "regulator" and "demand valve" (DV) are often used interchangeably, but a demand valve is the final stage pressure-reduction regulator...

A valve exerciser is a device that operates a valve periodically in order to prevent it from becoming so stiff that it no longer works. Valves that are...

A relay valve is an air-operated valve typically used in air brake systems to remotely control the brakes at the rear of a heavy truck or semi-trailer...

A blowoff valve (BOV) (also called dump valve or compressor bypass valve) is a pressure release system present in most petrol turbocharged engines. Blowoff...

computer by Valve, designed to operate SteamOS and the digital Steam storefront, and provide a home game console-like experience. Unlike Valve's previous...

A duckbill valve is a check valve, usually manufactured from rubber or synthetic elastomer, and has two or more flaps, usually shaped like the beak of...

experience. They were developed by Valve in collaboration with several computer vendors who were engaged with Valve to develop their own computers for...

Valves are quite diverse and may be classified into a number of types. Valves can be categorized into the following types, based on their operating mechanism:...

The valve gear of a steam engine is the mechanism that operates the inlet and exhaust valves to admit steam into the cylinder and allow exhaust steam to...

280.8 cu in) displacement 90-degree V8 was offered in 2-valve SOHC, 3-valve SOHC, and 4-valve DOHC versions. The engines were also offered with both aluminum...

Valve replacement is the surgical replacement of one or more of the heart valves with either an artificial heart valve or a bioprosthestic valve (homograft...

A shutdown valve (also referred to as SDV or emergency shutdown valve, ESV, ESD, or ESDV; or safety shutoff valve) is an actuated valve designed to stop...

Cylinder valve can refer to an inlet or exhaust valve in a piston engine or compressor a direct coupled valve to control the flow of gas into or out of...

support the inlet valve and exhaust valve stems. So that they may make proper contact with its valve seat. Along with a corresponding valve spring, they are...

In respiratory medicine, a flutter valve (also Pneumostat valve, and Heimlich valve) is a one-way check valve used to prevent airflow back into a chest...

A pilot valve is a small valve that controls a limited-flow control feed to a separate piloted valve. A pilot valve is one part of a larger pilot‑operated...

A valve hall is a building which contains the valves of the static inverters of a high-voltage direct current plant. The valves consist of thyristors...

A Bailout valve in underwater diving is a valve switching the breathing gas supply from the primary source to an emergency source. Rebreather diving#Bailout...

Trickle valves, also known as vacuum valves, are commonly used in industrial dust collection applications to maintain an airlock seal on a dust collector...

tissue (bioprosthetic) valve. The mitral valve may need to be replaced because: The valve is leaky (mitral valve regurgitation) The valve is narrowed and doesn't...

The valve trombone is a brass instrument in the trombone family that has a set of valves to vary the pitch instead of (or in addition to) a slide. Although...

A valve microphone is a condenser microphone which uses a valve amplifier rather than a transistor circuit. Microphones have been in use since the early...

Italian: eufonio; Spanish: bombardino) is a tenor- and baritone-voiced valved brass instrument pitched in 9-foot (9′) B♭ an octave below the B♭ trumpet...

AS involves the aortic valve, which separates the LV from the aorta. Much more rarely stenosis can occur below the aortic valve or above it. Aortic stenosis...

A saddle valve is a valve used in plumbing to supply liquid at a low volume and pressure. Its name refers to how the valve "saddles" the line from both...

Kingston valve is a type of valve fitted in the bottom of a ship's plating that connects the sea to the ship's piping and storage tanks. A Kingston valve is...

A shuttle valve is a type of valve which allows fluid to flow through it from one of two sources. Generally a shuttle valve is used in pneumatic systems...

the valve timing is the precise timing of the opening and closing of the valves. In an internal combustion engine those are usually poppet valves and...

USS Valve (ARS-28) was a Diver-class rescue and salvage ship commissioned by the U.S. Navy during World War II. Her task was to come to the aid of stricken...

A pyrotechnic valve, also explosive actuated valve, short pyro valve or pyrovalve is a one time use propulsion component often used to control propellant...

A valve amplifier or tube amplifier is a type of electronic amplifier that uses vacuum tubes to increase the amplitude or power of a signal. Low to medium...

businessman who is the co-founder and president of the video game company Valve. Newell was born in Aspen, Colorado, and grew up in Davis, California. He...

The Wade-Dahl-Till (WDT) valve is a cerebral shunt developed in 1962 by hydraulic engineer Stanley Wade, author Roald Dahl, and neurosurgeon Kenneth Till...

A valve stem is a self-contained valve that opens to admit gas to a chamber (such as air to inflate a tire), and is then automatically closed and kept...

Valve Anti-Cheat (VAC) is an automated anti-cheat system developed by Valve and first released with Counter-Strike in 2002 to enforce rules in online...

Plug valves are valves with cylindrical or conically tapered "plugs" which can be rotated inside the valve body to control flow through the valve. The...

A ball valve, also known as cone valve, is a flow control device which operates using a spherical ball with a hole (also known as a bore) through the...

Portal is a 2007 puzzle-platform game developed and published by Valve. It was originally released in a bundle, The Orange Box, for Windows, Xbox 360...

aortic valve replacement (TAVR), or transcatheter aortic valve implantation (TAVI), is the implantation of a replacement for the aortic valve through...

mechanical feedback of the downstream pressure to control the opening of a valve which controls gas flow from the upstream, high-pressure side, to the downstream...

proportioning valve is a valve that relies on the laws of fluid pressure to distribute input forces to one or more output lines. Proportioning valves are frequently...

A glaucoma valve is a medical shunt used in the treatment of glaucoma to reduce the eye's intraocular pressure (IOP). The device works by bypassing the...

safety valve is a mechanism for the release of a substance from a pressurized vessel when the pressure or temperature exceeds preset limits. Safety valve may...

Väinö Lahja Richard Valve (until 1915 Vähätupa; 28 December 1895 – 11 March 1995) was a Finnish general, navy commander and the last living member of...

Valve stenosis may refer to: Pulmonary valve stenosis Aortic valve stenosis Mitral valve stenosis This disambiguation page lists articles associated with...

A thermostatic radiator valve (TRV) is a self-regulating valve fitted to a hot-water heating system radiator to control the temperature of a room by changing...

The Hagmann Free-Flow Valve is a trademarked brass instrument valve design developed by Swiss musician and instrument technician René Hagmann, first introduced...

An endobronchial valve (EBV) is a small, one-way valve, which may be implanted in an airway feeding the lung or part of lung. The valve allows air to be...

Brass instrument valves are valves used to change the length of tubing of a brass instrument allowing the player to reach the notes of various harmonic...

A reversing valve is a type of valve and is a component in a heat pump, that changes the direction of refrigerant flow. By reversing the flow of refrigerant...

soot. Although simple, the valve has several functions: A one-way check valve A 'pop' valve An anti-dribble valve The valve was introduced on injection...

A zone valve is a specific type of valve used to control the flow of water or steam in a hydronic heating or cooling system. In the interest of improving...

cylinder. Examples of piston valves are: The valves used in many brass instruments The valves used for pneumatic propulsion The valves used in many stationary...

The valve seat in an internal combustion gasoline or diesel engine is the surface against which an intake or an exhaust valve rests during the portion...

The Valve Turners is a label given to, and claimed by, environmental activists who take direct action against the fossil fuel industry by illegally turning...

A blast valve is used to protect a shelter, such as a fallout shelter or bunker, from the effects of sudden outside air pressure changes. A nuclear weapon...

mass-production DOHC, four-valve-per-cylinder engines, the 4A-GE, and a later version of the same engine was one of the first production five-valve-per-cylinder engines...

the moving parts of the valve, valve oil provides corrosion protection to the bare metal of the inner valve. While the valve piston or rotor is made of...

Valve float is an adverse condition which can occur at high engine speeds when the poppet valves in an internal combustion engine valvetrain do not properly...

games) to run on Linux-based operating systems. Proton is developed by Valve in cooperation with developers from CodeWeavers. It is a collection of software...

The tricuspid valve, or right atrioventricular valve, is on the right dorsal side of the mammalian heart, at the superior portion of the right ventricle...

The Stephenson valve gear or Stephenson link or shifting link is a simple design of valve gear that was widely used throughout the world for various kinds...

A scuba cylinder valve or pillar valve is a high pressure manually operated screw-down shut off valve fitted to the neck of a scuba cylinder to control...

SteamOS is a gaming-focused operating system released by Valve that incorporates the company's video game storefront, Steam. Based on Arch Linux and built...

The Walschaerts valve gear, known as Heusinger valve gear in parts of Europe, is a type of valve gear used to regulate the flow of steam to the pistons...

A backwater valve is a backflow prevention device used to prevent outbound water through a dwelling's drain pipes from re-entering -- "back flowing"—into...

A tappet or valve lifter is a valve train component which converts rotational motion into linear motion in activating a valve. It is most commonly found...

Valve Kirsipuu (née Valve Elu; 5 March 1933 Tallinn – 20 September 2017 Corfu) was an Estonian economist and politician. She was a member of the VII,...

A POL valve (originally for Prest-O-Lite) is a gas connection fitting used on liquefied petroleum gas (LPG) cylinders. The oldest standard for such connections...

The Fleming valve, also called the Fleming oscillation valve, is a thermionic valve or vacuum tube invented in 1904 by English physicist John Ambrose...

A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination. It is different...

A snifting valve (sometimes snifter valve) is an automatic anti-vacuum valve used in a steam locomotive when coasting. The word Snift imitates the sound...

Heart valve repair is a cardiac surgery procedure, carried out to repair one or more faulty heart valves. In some valvular heart diseases repair where...

A diaphragm valve, or membrane valve, consists of a valve body with two or more ports, a flexible diaphragm, and a weir, saddle, or seat upon which the...

Sometimes called a check valve or a backflow preventer, a chemigation valve is an apparatus designed to protect water supplies from agricultural chemicals...

pinch valve is a full bore or fully ported type of control valve which uses a pinching effect to obstruct fluid flow. A pinch valve is a type of valve which...

A bash valve is a valve within a piston engine, used to control the admission of the working fluid. They are directly actuated valves, operated by contact...

A sun valve (Swedish: solventil) is a flow control valve that automatically shuts off gas flow during daylight. It earned its inventor Gustaf Dalén the...

open valves will permit flow from the inlet port of the valve to the outlet port, normally the flow will be cut by changing the position of the valve. The...

In electrochemistry, a valve metal is a metal which passes current in only one direction. Usually, in an electrolytic cell, it can function generally...

Parachute mitral valve (or PMV) is a rare congenital heart disease where the mitral valve only has a single papillary muscle from which all chordae tendineae...

An automatic bleeding valve or air release valve (ARV) is a plumbing valve used to automatically release trapped air from a heating system. Air, or other...

Heart valve dysplasia is a congenital heart defect which affects the aortic, pulmonary, mitral, and tricuspid heart valves. Dysplasia of the mitral and...

a coil with a large flared bell and rotary valves. The term French horn refers to horns with piston valves, seldom used today; the double horn in F/B♭...

electrohydraulic servo valve (EHSV) is an electrically-operated valve that controls how hydraulic fluid is sent to an actuator. Servo valves are often used to...

construction, inspection and marking requirements for cartridges with or without a valve, for use with portable appliances which comply with the requirements of...

The slide valve is a rectilinear valve used to control the admission of steam into and emission of exhaust from the cylinder of a steam engine. In the...

family of straight-four 16-valve all-aluminum and water cooled gasoline engines with a die-cast aluminum block and variable valve timing developed by Toyota...

veins the flow of blood is maintained by one-way (unidirectional) venous valves to prevent backflow. In the lower limbs this is also aided by muscle pumps...

The Björk–Shiley valve is a mechanical artificial heart valve. The valve was co-invented by American engineer Donald Shiley and Swedish heart surgeon...

The dredge valve is a component of a Cutter Suction Dredge or a Trailing Suction Hopper Dredger that is used control the flow of water and sand in the...

that allowed Valve to inherit the trademark to the Dota name. The first standalone installment in the series, Dota 2, was released by Valve in July 2013...

P-valve may refer to: Proportioning valve P-valve (diving) This disambiguation page lists articles associated with the title P-valve. If an internal link...

The Valves were a punk rock band from Edinburgh, Scotland. One of the early British punk bands, they were chronicled in Henrik Poulsen's book 77: The Year...

An isolation valve is a valve in a fluid handling system that stops the flow of process media to a given location, usually for maintenance or safety purposes...

In a healthy heart, blood flows one way through the heart due to heart valves, which prevent backflow. The heart is enclosed in a protective sac, the...

involved in producing different pitches on a brass instrument. Slides, valves, crooks (though they are rarely used today), or keys are used to change...

Mitral valve annuloplasty is a surgical technique for the repair of leaking mitral valves. Due to various factors, the two leaflets normally involved in...

The safety valve theory was an American theory of economic development that held the availability of free land and continued expansion westwards into...

rapidly, giving a short, sharp cut-off. The valve itself can be a drop valve or a Corliss valve. Trip valve gear was applied to larger stationary engines...

The four-way valve, or four-way cock, is a fluid control valve whose body has four ports. One commonly used form—the rotary four-way valve—has equally...

A spiral valve or scroll valve is the corkscrew-shaped lower portion of the intestine of some sharks, Acipenseriformes (sturgeon and paddlefish), rays...

Left 4 Dead 2 is a 2009 first-person shooter game by Valve. The sequel to Left 4 Dead (2008) and the second game in the Left 4 Dead series, it was released...

Portal 2 is a 2011 first person puzzle-platform game developed by Valve for Windows, macOS, Linux, PlayStation 3, and Xbox 360. The retail versions and...

The pericardial heart valve was invented by Marian Ionescu, a British surgeon working at the General Infirmary in Leeds, England. He created this artificial...

An earthquake valve (or seismic valve) is an automatic method to shut off the low pressure regulated gas supply to a structure during a major earthquake...

A valve RF amplifier (UK and Aus.) or tube amplifier (U.S.) is a device for electrically amplifying the power of an electrical radio frequency signal...

Vacuum valve may refer to: Trickle valve, a type of airlock Vacuum breaker, an anti-siphon valve Vacuum delay valve, an automobile component Vacuum tube...

A Larner–Johnson valve is a mechanism used in dams and water pumping to control the flow of water through large pipes. The valve is suited to handling...

valve (GLV) is a "micro projection" technology that operates using a dynamically adjustable diffraction grating. It competes with other light valve technologies...

aortic valve (aortic stenosis) and other valve disorders. AAC, or AVB, relieves the obstruction to blood flow by adding a bioprosthetic valve to the circulatory...

combustion engine whose valvetrain comprises OHV inlet valves within the cylinder head and exhaust side-valves within the engine block. IOE engines were widely...

complications involve the heart and aorta, with an increased risk of mitral valve prolapse and aortic aneurysm. The lungs, eyes, bones, and the covering of...

a heart valve replacement operation to treat severe aortic valve disease, such as in children and young adults with a bicuspid aortic valve. It involves...

Variable Valve Timing & Lift Electronic Control (VTEC) is a valve system developed by Honda to improve the volumetric efficiency of a four-stroke internal...

first-person shooter (FPS) game developed by Valve Corporation and published by Sierra Studios for Windows. It was Valve's debut product and the first game in...

A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current...

A light valve (LV) is a device for varying the quantity of light, from a source, which reaches a target. Examples of targets are computer screen surfaces...

Aortic valve stenosis Normal aortic valves are estimated to be less than a millimeter thick. Subsequent fibrosis and calcification of the valve leads to...

formerly the Half-Life Engine) is a proprietary game engine developed by Valve. At its core, GoldSrc is a heavily modified version of id Software's Quake...

Cylinders provide breathing gas to the diver by free-flow or through the demand valve of a diving regulator, or via the breathing loop of a diving rebreather...

Portal is a series of first-person puzzle-platform video games developed by Valve. Set in the Half-Life universe, the two main games in the series, Portal...

free-to-play first-person shooter video game developed and published by Valve. It is the fifth main entry in the Counter-Strike series, produced as an...

Valve Raudnask (née Valve Purask; born 10 December 1936 in Aleksandri Parish, Võru County) is an Estonian journalist and politician. From 1963 until 1982...

Marshall valve gear may refer to: Marshall valve gear, a modified Hackworth valve gear, patented in 1879 by Marshall, Sons & Co. J. T. Marshall valve gear...

as the spiral mucosal folds, spiral valves of Cina,[citation needed] Heister valves, Amussat valve, or Cina valves) are a series of crescenteric, spirally...

Sloan Valve Company is a privately held American company specializing in plumbing valves and fixtures. The company is still managed by descendants of William...

A ballcock (also balltap or float valve) is a mechanism or machine for filling water tanks, such as those found in flush toilets, while avoiding overflow...

A pressure regulator is a valve that controls the pressure of a fluid to a desired value, using negative feedback from the controlled pressure. Regulators...

The valve of the inferior vena cava (Eustachian valve) is a venous valve that lies at the junction of the inferior vena cava and right atrium. In prenatal...

multiplayer online battle arena (MOBA) game developed and published by Valve. It is set in an alternate urban fantasy New York in the 20th century, featuring...

C.) and ends at bottom dead center (B.D.C.). In this stroke the intake valve must be in the open position while the piston pulls an air-fuel mixture...

A helium release valve, helium escape valve or gas escape valve is a feature found on some diving watches intended for saturation diving using helium based...

An air-operated valve, also known as a pneumatic valve, is a type of power-operated pipe valve that uses air pressure to perform a function similar to...

anatomy of the heart, the valve of the coronary sinus (also called the Thebesian valve, after Adam Christian Thebesius) is a valve located at the orifice...

recognized leader in the field of heart valve surgery and mitral valve reconstruction. As director of Mount Sinai Mitral Valve Repair Center, he has set national...

(narrowing) or regurgitation (leakage) of the mitral valve. The mitral valve is the "inflow valve" for the left side of the heart. Blood flows from the...

A valve transmitter typically refers to a manufactured device that is used in industrial automation to convert signals related to a valve's operation...

muscular organ situated in the mediastinum. It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The...

(24.1 cu in) SOHC, 6-valve, parallel-twin. 2-speed automatic gearbox CB400TI Hawk I (1978–1979) 395 cc (24.1 cu in) SOHC, 6-valve, parallel-twin. 5-speed...

Pulmonary valve stenosis (PVS) is a heart valve disorder. Blood going from the heart to the lungs goes through the pulmonary valve, whose purpose is to...

Aortic Tissue Valve is a prosthetic heart valve used in cardiac surgery to replace a damaged or diseased aortic valve. It is a bioprosthetic valve, meaning...

An expansion valve is a device in steam engine valve gear that improves engine efficiency. It operates by closing off the supply of steam early, before...

Swirl valve technology has been developed by Twister BV of the Netherlands primarily for the gas processing market. This technology is similar to the...

a 2007 multiplayer first-person shooter game developed and published by Valve Corporation. It is the sequel to the 1996 Team Fortress mod for Quake and...

Like other pressure relief valves (PRV), pilot-operated relief valves (PORV) are used for emergency relief during overpressure events (e.g., a tank gets...

valve or axial check valve Ball valve Butterfly valve Check valve Control valve Diaphragm valve Flow limiter Flow measurement Gate valve Globe valve Mass...

is a 2006 sandbox game developed by Facepunch Studios and published by Valve. The base game mode of Garry's Mod has no set objectives and provides the...

shooter (FPS) game developed and published by Valve Corporation. It was published for Windows on Valve's digital distribution service, Steam. Like the...

Aortic valve repair or aortic valve reconstruction is the reconstruction of both form and function of a dysfunctional aortic valve. Most frequently it...

F range, the diesel SOHC 8-valve (R-series), the petrol SOHC 8-valve, petrol SOHC 12-valve, and the petrol DOHC 16-valve. These heads came attached to...

Thermostatic valve may refer to: Thermostatic radiator valve Thermostatic mixing valve Thermal expansion valve This disambiguation page lists articles...

Pneumatic valve springs are metal bellows filled with compressed air used as an alternative to the metal wire springs used to close valves in high-speed...

A hydrogen valve is a special type of valve that is used for hydrogen at very low temperatures or high pressures in hydrogen storage or for example hydrogen...

A spin valve is a device, consisting of two or more conducting magnetic materials, whose electrical resistance can change between two values depending...

A valve is each articulating part of the shell of a mollusc or another multi-shelled animal such as brachiopods and some crustaceans. Each part is known...

virtual reality (VR) first-person shooter game developed and published by Valve. It was released for Windows on March 23, 2020, and for Linux on May 15...

leaflets of the four heart valves. The mitral valve, which has two cusps, is also known as the bicuspid valve, and the tricuspid valve has three cusps. A cusp...

A sampling valve is a type of valve used in process industries that allows taking a representative portion of a fluid (gases, liquids, fluidized, solids...

muscles to the tricuspid valve and the mitral valve in the heart. The chordae tendineae connect the atrioventricular valves (tricuspid and mitral), to...

The Sentinel Valve Works Ltd was a British company based in Worcester, England, that made medium, large and enormous valves initially for civic clean water...

A ceramic valve is a valve with ceramic trim, ball, seat, disc or lining. A carbon steel or stainless steel body is used to protect the ceramic trim from...

the motion of a pushrod in an overhead valve internal combustion engine to the corresponding intake/exhaust valve. Rocker arms in automobiles are typically...

four) valves which are used to change their pitch. Most trumpets have piston valves, although some have rotary valves. The use of rotary-valved trumpets...

one-sided chest pain and shortness of breath. In a minority of cases, a one-way valve is formed by an area of damaged tissue, in which case the air pressure in...

A quadricuspid aortic valve (QAV) is a rare congenital heart defect characterized by the presence of four cusps, instead of the usual three found normally...

of its timing belt does not result in damage to valves or pistons, because the opening of the valves, the depth of the combustion chamber and (in some...

percentage of the possible failure modes of a shut down valve without the need to physically close the valve. PST is used to assist in determining that the safety...

The double-beat valve, drop valve or equilibrium valve is a type of poppet valve arranged to allow it to be opened against a high pressure with a minimum...

Mushroom valve may refer to: The exhaust valve of a diving mechanism Poppet valve, a rigid flow control valve commonly used in engines and pumps This disambiguation...

The Steam Machine is a custom gaming computer made by Valve Corporation. Steam machine may also refer to: Steam Machines, a family of pre-built gaming...

blower or piston pump for scavenging. The reed valve is a simple but highly effective form of check valve commonly fitted in the intake tract of the piston-controlled...

The Trofimoff valve (German: Trofimoff-Schieber) (also Trofimov, Troffimoff or Trofimof) is a springless pressure-compensation piston valve for steam locomotives...

a mid position. The valve is shut off at both its top and bottom positions. A second valve, placed within the main cylinder valve, releases the water...

pulmonary valve replacement (TPVR), also known as percutaneous pulmonary valve implantation (PPVI), is the replacement of the pulmonary valve via catheterization...

A camless or free-valve piston engine is an engine that has poppet valves operated by means of electromagnetic, hydraulic, or pneumatic actuators instead...

game developed by Valve. It was planned as the last in a trilogy of episodic games continuing the story of Half-Life 2 (2004). Valve announced Episode...

gasoline-powered, use four valves per cylinder, and have a single timing belt that drives the overhead camshafts. VTEC variable valve timing is used on almost...

An oral inflation valve is a valve present on most swim toys and beach balls. These inflation valves can also be filled with air pumps, which makes the...

to the Gulf of Mexico. Right and left valve of the same specimens: Right valve Left valve Right valve Left valve At the northern extreme of its range in...

Dota 2 is a 2013 multiplayer online battle arena (MOBA) video game by Valve. The game is a sequel to Defense of the Ancients (DotA), a community-created...

The axial flow valve, or Thayer valve, is a brass instrument valve design patented in 1978 by American inventor Orla Ed Thayer. Designed with assistance...

Valve Bone Woe is the second solo studio album by American singer-songwriter Chrissie Hynde. The album consists entirely of cover versions, and was released...

Flugelhorns usually have piston valves in North America, France, Britain, and Commonwealth countries, and rotary valves in central and eastern Europe....

Anal valves are small horizontal folds uniting the inferior ends of any two adjacent anal columns of the anal canal. Anal valves forms the inferior boundary...

A thermostatic mixing valve (TMV) is a valve that blends hot and cold water to ensure a nearly constant output temperature, such as for safe shower and...

Reed valves are a type of check valve which restrict the flow of fluids to a single direction, opening and closing under changing pressure on each face...

resistance present. The fluid is controlled directly or automatically by control valves and distributed through hoses, tubes, or pipes. Hydraulic systems, like...

twenty locomotives of the LMS Stanier Black Five type, fitted with Caprotti valve gear, in 1948; the BR Caprotti Black Fives. These were numbered 44738-57...

(known as Valve South between 2008 and 2010) is an American video game developer founded in March 2002 by Mike Booth. It was acquired by Valve in 2008,...

The Hackworth valve gear is a design of valve gear used to regulate the flow of steam to the pistons in steam engines. It is a radial gear, with an actuating...

key is a valve or tap used to allow the drainage of accumulated fluid from wind instruments. It is otherwise known as a water valve or spit valve. They are...

Pistol Valve (ピストルバルブ, Pisutoru Barubu) is a Japanese all-girl brass and rock band, formed in 2005. There are 10 members in this group and every member...

blower valve. When the regulator is open, the blower valve is closed; when the driver intends to close the regulator, he will first open the blower valve. It...

The Steam Controller is a game controller developed by Valve and released in 2026 for use with personal computers running Steam on Windows, macOS, Linux...

turbocharged gasoline engines in both 12-valve and 16-valve versions with a variable compression ratio and variable valve timing developed by Nissan. The KH5T...

urethral valve (PUV) disorder is an obstructive developmental anomaly in the urethra and genitourinary system of male newborns. A posterior urethral valve is...

A sleeve valve is a device typically used in a water supply or distribution system when there is a need to reduce high pressure or throttle flow. The...

needed] modern petcocks are typically ball valves. Compared to the progressive control of a gate valve, a ball valve style petcock's is coarse, confining their...

installed in Alfa Romeo cars. The 8-valve engine was fitted initially to the Alfa Romeo 75 but also the 164 and 155. The 16-valve engines appeared in the 145...

A pressure-balanced valve provides water at nearly constant temperature to a shower or bathtub, despite pressure fluctuations in either the hot or cold...

The two-stroke power valve system is an improvement to a conventional two-stroke engine that gives a high power output over a wider RPM range. A stroke...

A downhole safety valve refers to a component on an oil and gas well, which acts as a failsafe to prevent the uncontrolled release of reservoir fluids...

turbocharged four-cylinder DOHC petrol engine with variable valve lift and variable valve timing which replaced the N53 (or BMW N52 in some markets) and...

A valve audio amplifier (UK) or vacuum tube audio amplifier (US) is a valve amplifier used for sound reinforcement, sound recording and reproduction....

Double dump valves, also known as double flap valves or double flap gates, are a type of airlock valve commonly used in industrial applications as a component...

Valve Pormeister née Ulm (13 April 1922 – 27 October 2002) was an Estonian landscape architect who became an architect. She was one of the first women...

valve (commonly abbreviated to APL valve, and also referred to as an expiratory valve, relief valve or spill valve) is a type of flow control valve used...

Counter-Strike (CS) esports tournaments sponsored by Valve, the game's developer. The first Valve-recognized Major took place in 2013 in Jönköping, Sweden...

GSX Series is Suzuki's range of sport touring motorcycles powered by four-valve per cylinder four-stroke engines. The first GSX models were introduced in...

Piston valves are one form of valve used to control the flow of steam within a steam engine or locomotive. They control the admission of steam into the...

A needle valve is a type of valve with a small port and a threaded, needle-shaped plunger. It allows precise regulation of flow, although it is generally...

company headquartered in Irvine, California, specializing in tissue heart valves and transcatheter technologies for the treatment of structural heart disease...

Machine Shut off Valve in 2023: How to Choose". House Owners Guide. Retrieved 2023-03-24. "Washing Machine Shut Off Valve (Smart Valves)". keymicrosystems...

an ancillary benefit of recirculating exhaust gases via an external EGR valve is an increase in efficiency, as charge dilution allows a larger throttle...

usually equipped with an inflation valve (or inlet valve) and at least one exhaust valve (or dump valve, or outlet valve). Survival suits and other dry suits...

murmurs are unique heart sounds produced when blood flows across a heart valve or blood vessel. This occurs when turbulent blood flow creates a sound loud...

real-world or digital currency. Valve condemns the gambling practices as it violates the platform's terms of service. Valve added random skin rewards as...

or lower vessel, also known as the boiler, which is fitted with a safety valve to prevent over-pressurization The filter funnel or basket, which compresses...

The Vieussens valve of the coronary sinus is a prominent valve at the end of the great cardiac vein, marking the commencement of the coronary sinus. It...

particularly for jet engine powered aircraft. For a steam locomotive, the valve which controls the steam is known as the regulator. In an internal combustion...

cardiology, aortic valve area calculation is an indirect method of determining the area of the aortic valve of the heart. The calculated aortic valve orifice area...

with two concentric valve springs, 8 valves total 16v: four valves per cylinder each with two concentric valve springs, 16 valves total aspiration dual...

German-American inventor and mechanic. He is known for inventing the Schrader valve. Schrader immigrated from Germany to the United States and opened a shop...

complex valve trains (caused by valves being placed opposite one-another in a head) and expense (of machining the heads and pistons, and additional valve train...

describes the relationship between the pressure drop across an orifice valve or other assembly and the corresponding flow rate. A greater restriction...

model. Ducati's liquid-cooled, multi-valve 90° V-twins, made from 1985 on, are known as Desmoquattro ("desmodromic valve four"). These include the 851, 916...

four-valve flat-12 1953–1957 1.5 L (1,498 cc) 81 kW (110 PS; 109 bhp) 117 N⋅m (86 lb⋅ft) Type 547 air-cooled, four-stroke, DOHC, eight-valve boxer flat-four...

camshafts and poppet valves rather than the piston valves used in other valve gear. While basing his design on automotive valves, Caprotti made several...

Baker valve gear was the main competitor to Walschaerts valve gear for steam locomotives in the United States. Strictly speaking it was not a valve gear...

insufficiency, is a type of valvular heart disease in which the tricuspid valve of the heart, located between the right atrium and right ventricle, does...

video game compilation containing five games developed and published by Valve. Two of the games included—Half-Life 2 and its first stand-alone expansion...

form, right valve brown form, left valve purple form, right valve purple form, left valve var. aurantia, right valve var. aurantia, left valve var. citrina...

MitraClip (mitral clip) is a medical device used to treat mitral valve regurgitation for individuals who should not have open-heart surgery. It is implanted...

opening of the mitral valve of the heart. It is almost always caused by rheumatic valvular heart disease. Normally, the mitral valve is about 5 cm2 during...

for the five-on-five video game Dota 2. Produced by the game's developer Valve, it serves as the culminating event of the professional Dota 2 season and...

The active valve control system (AVCS) is an automobile variable valve timing technology used by Subaru. It varies the timing of the valves by using hydraulic...

A bag valve mask (BVM), sometimes known by the proprietary name Ambu bag or generically as a manual resuscitator or "self-inflating bag", is a hand-held...

A tetrode is a vacuum tube (called valve in British English) having four active electrodes. The four electrodes in order from the centre are: a thermionic...

is a form of valve used to control the flow of a liquid or gas. The term is not precise and is applied to many different types of valve. The only consistent...

Half-Life is a series of first-person shooter games created by Valve. The games combine shooting combat, puzzles and storytelling, and are played entirely...

Tricuspid valve stenosis is a valvular heart disease that narrows the opening of the heart's tricuspid valve. It is a relatively rare condition that causes...

An idle air control actuator or idle air control valve (IAC actuator/valve) is a device commonly used in fuel-injected vehicles to control the engine's...

Valve interstitial cells (VIC), cardiac valve interstitial cells, or also known as valvular interstitial cells (VICs), are the most prevalent cells in...

overhead camshafts, double-VANOS (variable valve timing) and valvetronic (variable valve lift). The variable valve timing (VANOS) is a continuously variable...

braking performance across a range of engine speeds. An exhaust brake is a valve which essentially creates a back-pressure in the exhaust system, which applies...

months later, Valve released Counter-Strike: Source, a remake of the original Counter-Strike and the first in the series to run on Valve's then-newly created...

The Epiphone Valve Junior is a small 5 watt class A electric guitar amplifier. It is relatively inexpensive, and has relatively few features, but is somewhat...

mitral valve meets the tricuspid valve. Endocardial cushion defects are associated with abnormalities of the atrioventricular valves (the mitral valve and...

parts, a spring or weight loaded "waste" valve sometimes known as the "clack" valve and a "delivery" check valve, making it cheap to build, easy to maintain...

Subsea valves are used to isolate or control the flow of material through an undersea pipeline (submarine pipeline) or other apparatus. Most commonly used...

and are subdivided into Vâlve Albe ("White Vâlve"), who are considered beneficial, and Vâlve Negre ("Black Vâlve" or "Dark Vâlve"), who are considered evil...

Canadian interventional cardiologist and the McLeod Professor of Heart Valve Intervention at the University of British Columbia. He is most well known...

The Steam Controller (2015) is a game controller developed by Valve for use with personal computers, running Steam on Windows, macOS, Linux, smartphones...

Mitsubishi Motors. All are 16-valve, and use both single- and double- overhead camshaft heads. Some feature MIVEC variable valve timing, and it was the first...

assessment of the overall health of the heart, including a patient's heart valves and degree of heart muscle contraction (an indicator of the ejection fraction)...

concept in which a four valve per cylinder motor was given desmodromic valve actuation, with cams both opening and closing the valves. Ducati's desmodromic...

internal combustion engine. The system usually consists of a tube, a one-way valve and a vacuum source (such as the inlet manifold). The unwanted gases, called...

Offensive (CS:GO) is a multiplayer tactical first-person shooter developed by Valve and Hidden Path Entertainment. It is the fourth game in the Counter-Strike...

A vacuum delay valve is a valve with a small orifice, which delays a vacuum signal. These are commonly used in automobiles to alter the behavior of vacuum...

A clutch delay valve is an automotive component added to the clutch system of an automobile to control clutch engagement speed. Its purpose is to engage...

Björk–Shiley valve, a mechanical prosthetic heart valve. It was the first "tilting disc valve", used to replace the aortic or mitral valve. Many modifications...

A valve regulated lead‐acid (VRLA) battery, commonly known as a sealed lead-acid (SLA) battery, is a type of lead-acid battery characterized by a limited...

is a free 3D computer graphics software tool developed and published by Valve for creating animated films, which uses the Source game engine. Source Filmmaker...

nasal cavity has a nasal valve area that includes an external nasal valve and an internal nasal valve. The external nasal valve is bounded medially by the...

trademark Hemi or HEMI, is a series of high-performance American overhead valve V8 engines built by Chrysler with hemispherical combustion chambers. Three...

Multi-seat valves, or multi-port valves, are used to shut off or control complex liquid flows in sterile areas in the beverage and food industry as well...

valve lifter or hydraulic lash adjuster, is a device for maintaining zero valve clearance in an internal combustion engine. Conventional solid valve lifters...

Check valve (usually not a legally approved method of backflow prevention.) Chemigation valve (primarily used in agriculture) Double check valve assembly...

also known as aortic insufficiency (AI), is the leaking of the aortic valve of the heart that causes blood to flow in the reverse direction during ventricular...

Tissue engineered heart valves (TEHV) offer a new and advancing proposed treatment of creating a living heart valve for people who are in need of either...

tempering valve or thermostatic mixing valve on the outlet of the water heater. The result of automatically mixing hot and cold water via a tempering valve is...

Valve is an Estonian feminine given name. As of 1 January 2022, 795 women in Estonia have the first name Valve, making it the 217th most popular female...

a member of the valved bugles, a large and diverse family of instruments characterized by their wide conical bore and use of valves to alter pitch. The...

Camshafts are used in piston engines (to operate the intake and exhaust valves), mechanically controlled ignition systems and early electric motor speed...

upright on a flattened or dished bottom end or foot ring, with the cylinder valve screwed into the internal neck thread at the top for connecting to the filling...

user turns off the valve and then a short time later turns the valve back on again. Hot water starts flowing once again at the valve from the hot water...

sound. It is caused when the closure of the aortic valve (A2) and the closure of the pulmonary valve (P2) are not synchronized during inspiration. The...

Nissan Variable Valve Event and Lift (commonly abbreviated as VVEL) is an automobile variable valve timing technology developed by Nissan. Nissan VVEL...

The Ford Valve Plant is a factory building located at 235 East Main Street in Northville, Michigan. The plant was built as part of Henry Ford's vision...

A four-stroke power valve is a device fitted to four-stroke engines that constantly adjusts the internal diameter of the exhaust system to better suit...

bivalve mollusk in the family Myidae. Right and left valve of the same specimen: Right valve Left valve These clams live buried in the sediment on tidal flats...

Load-sensing valve Master cylinder Metering valve Park brake lever/handle (hand brake) Pressure differential valve Proportioning valve Reservoir Shoe...

consists of several spring-loaded valves, check balls, and servo pistons. In older automatic transmissions, the valves use the pump pressure and the pressure...

valve gear was briefly popular on steam locomotives in the United States. It combines elements of the Walschaerts and Baker patterns. Southern valve gear...

injection pressure of 1600 bar. It uses a turbocharger and intercooler. 8-valve and 16-valve versions of the engine are produced, differing in valvetrain and subsequent...

VVC (Variable Valve Control) is an automobile variable valve timing technology developed by Rover and applied to some high performance variants of the...

MIVEC (Mitsubishi Innovative Valve timing Electronic Control system) is the brand name of a variable valve timing (VVT) engine technology developed by...

Cultural Centre Valve is a cultural center in the Pokkinen neighbourhood in Oulu, Finland. The cultural center provides spaces for variety of cultural...

Steam Link is a software and discontinued hardware product developed by Valve Corporation for streaming Steam content from a personal computer or Steam...

reactance connected in series with a bidirectional thyristor valve. The thyristor valve is phase-controlled, which allows the value of delivered reactive...

Absent pulmonary valve syndrome (APVS) is a congenital heart defect that occurs when the flaps of the pulmonary valve do not develop or are severely underdeveloped...

The baritone horn, or often simply the baritone, is a valved brass instrument pitched in B♭ in the saxhorn family, employed chiefly in brass, military...

valves per cylinder for a total of sixteen. The most common output of this variant is 170 hp (127 kW). The 5.9 L Cummins, also known as the "12-Valve"...

heart valves with surgeon Donald Ross, adapting the Ross procedure, where the diseased aortic valve is replaced with the person's own pulmonary valve, devising...

side. Crossflow heads use overhead valves, but these can be actuated either by overhead camshafts, or by a valve-train, which has the camshafts in the...

The Baguley valve gear is a type of steam engine valve gear invented by Ernest E. Baguley, the Chief Draughtsman of the W.G. Bagnall company of locomotive...

Automatic balancing valves are utilised in central heating and cooling systems that rely on flow of water through the system. They use the latest flow...

on Steam". Valve. Archived from the original on March 26, 2023. Retrieved October 11, 2014. "Sunrider: Mask of Arcadius on Steam". Valve. Archived from...

is a family of straight-3 12-valve and straight-4 16-valve automobile petrol-only engines with continuously variable valve timing, involving development...

A guardian valve is a valve used in marine steam turbine propulsion plants to prevent steam from leaking into the astern turbine while the vessel is operating...

that conveys fluids for a wide range of applications. Plumbing uses pipes, valves, plumbing fixtures, tanks, and other apparatuses to convey fluids. Heating...

[citation needed] Power valves (tubes) can be overdriven in the same way that pre-amplifier valves can, but because these valves are designed to output...

(dilations) in the wall of the aorta just superior to the aortic semilunar valve. Two of these, the left posterior aortic sinus and anterior aortic sinus...

The BMW M43 is a single overhead camshaft eight valve four-cylinder petrol engine which was produced from 1991 to 2002. The M43 was used in lower powered...

Dixon Valve & Coupling Company is an American manufacturer and supplier of hose fittings and accessories. The company, often referred to as just Dixon...

operated valves are not usually acceptable. Automatic check valves are required to prevent back pressure. Regulations for these check valves specify the...

The Toyota Y engine is a series of overhead valve straight-four petrol engines manufactured by Toyota from 1982 through 1996. The Y engine has mostly...

surfaces can bear without failing. Pressure-limiting valves are a type of pressure control valve. They safeguard the system against excessive system pressure...

IHI RHB31/32 turbocharger. It has a single overhead camshaft driving six valves. Cylinder spacing is 84 mm (3.31 in), as for the four-cylinder G13/G15/G16...

breathing gas is supplied through a demand valve; when the diver inhales, they reduce the pressure in the demand valve housing, thus drawing in fresh gas. In...

solitary; valve outline almost always bipolar; valve pattern organized bilaterally about an elongate axial rib (sternum), as in a feather; valve structure...

reservoir charging valve, and the brake cylinder release valve. Westinghouse soon improved the device by removing the poppet valve action. These three...

Rane Engine Valve Limited is a part of Rane Group of companies involved in the manufacture of valves and valve train components for various engine applications...

SOHC 12 valve engine) and variable valve timing were added later during the production run. The 1G-GEU was Toyota's first mass produced four-valve twincam...

295 cc) I4, 8-valve SOHC, carb, 75 PS (55 kW) (AE80) 2E-LU – 1.3 L (1,296 cc) I4, 12-valve SOHC, carb (EE80) 3A-LU – 1.5 L (1,452 cc) I4, 8-valve SOHC, carb...

thin-wall cast-iron engine block, single-row chain-operated DOHC 4-valve, variable valve timing that allows Miller cycle operation for partial-throttle condition...

engine (or Corliss engine) is a steam engine, fitted with rotary valves and with variable valve timing patented in 1849, invented by and named after the US...

ambient, and a diaphragm in the demand valve senses this pressure difference and moves a lever to open the valve to allow breathing gas to flow into the...

Valve-sparing aortic root replacement (also known as the David procedure) is a cardiac surgery procedure which is used to treat Aortic aneurysms and to...

254 cc (76.5 cu in), two-cylinder boxer engine with four valves per cylinder and variable valve timing (VVT). In September 2018, Kevin Cameron wrote that...

against the compression of the pistons. It does this via either a release valve that is incorporated within the cylinder head that vents the cylinder pressure...

is a congenital malformation of the pulmonary valve in which the valve orifice fails to develop. The valve is completely closed thereby obstructing the...

A leaf valve, also known as a reed valve, is a type of check valve that only allows fluid to flow in a single direction. These valves use thin pieces of...

have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at...

valve Donax trunculus trunculus left valve Donax trunculus trunculus var. flaveolus right valve Donax trunculus trunculus var. flaveolus left valve Donax...

16 Valve Hate is the fifth studio album by the American hardcore band Slapshot. It was originally released in Germany 1995 via Lost & Found Records. It...

mollusc, composed of two hinged halves or valves. The two half-shells, called the "right valve" and "left valve", are joined by a ligament and usually articulate...

and fibrosis of the valve, with white tissue building up primarily on the tricuspid valve, but also occurring on the pulmonary valve. The thickening and...

but gases can also be affected. This phenomenon commonly occurs when a valve closes suddenly at an end of a pipeline system and a pressure wave propagates...

electronically controlled unit injectors) Valve train: OHV 4-valves per cylinder, 32 valves total (16 intake valves, 16 exhaust valves) Turbo configuration: Single;...

Gab valve gear was an early form of valve gear used on steam engines. Its simplest form allowed an engine to be stopped and started. A double form, mostly...

as multi-turn valves, or electric-powered construction and excavation equipment. When used to control the flow of fluid through a valve, a brake is typically...

The British Radio Valve Manufacturers' Association (BVA) was a 20th-century cartel of vacuum tube (valve) manufacturers in the United Kingdom that was...

admittance valves and check vents, and "plumb-arounds" such as an inline vent employed in kitchen islands and similar applications: Air admittance valves (AAVs...

belonging to the family Veneridae. Right and left valve of the same specimen: Right valve Left valve The species is found in the Americas and Malesia....

with four valves per cylinder (for a total of 24 valves) was introduced in 1999. The 24-valve versions use one camshaft for the intake valves of both banks...

Valve gear opens and closes valves in the correct order. In rotating engines valve timings can be driven by eccentrics or cranks, but in non-rotative beam...

1920 – July 31, 2010) was the inventor of the Bjork–Shiley valve, a prosthetic heart valve. He was a 1951 alumnus of the University of Portland, where...

sensors that are integral with the valve stem can suffer from corrosion. Metallic valve caps can become seized to their valve stems due to galvanic corrosion...

"father of modern mitral valve repair". He is most well-known for the development and popularization of a number of mitral valve repair techniques. In 1996...

improve blood flow through the aortic valve in conditions that cause aortic stenosis, or narrowing of the aortic valve. It can be performed in various patient...

sound (S2), produced by the closing of the atrioventricular valves and semilunar valves, respectively. In addition to these normal sounds, a variety...

fluids), several valves (including the main fuel valve, main oxidizer valve, propellant utilization valve and fuel and oxidizer bleed valves), fuel and oxidizer...

hydraulic surges include gas-loaded surge relief valves, spring-loaded pressure safety valves, pilot-operated valves, surge suppressors, and rupture disks. Surge...

engine block with thin press-fit cast iron cylinder liners, aluminium DOHC 4-valve cylinder heads, and chain-driven camshafts. The ZZ family replaced the extremely...

scuba cylinder valves and liquefied natural gas for home use. The standards include: CGA V-1 Standard for Compressed Gas Cylinder Valve Outlet and Inlet...

including Marfan syndrome and Ehlers–Danlos syndrome; a bicuspid aortic valve; and previous heart surgery. Major trauma, smoking, cocaine use, pregnancy...

The circular folds (also known as valves of Kerckring, valves of Kerchkring, plicae circulares, plicae circulae, and valvulae conniventes) are large valvular...

The VK engine is a V8 piston engine from Nissan. It is an aluminum DOHC 4-valve design. The VK engine was originally based on Nissan's VQ V6 rather than...

An angle seat piston valve is a pneumatically-controlled valve with a piston actuator providing linear actuation to lift a seal off its seat. The seat...

litre 12-valve — 73 PS (54 kW) 3E — 1.45 litre 12-valve — 79 PS (58 kW) 5A-F — 1.5 litre 16-valve DOHC — 85 PS (63 kW) 5A-FE — 1.5 litre 16-valve DOHC, EFI...

Decellularization of porcine heart valves is the removal of cells along with antigenic cellular elements by either physical or chemical decellularization...

Demand Valve Oxygen Therapy (DVOT) is a way of delivering high flow oxygen therapy using a device that only delivers oxygen when the patient breathes...

the chambers of the heart (commonly the atrium) as well as a valve (commonly the mitral valve). It is commonly known as both congenital atrial septal defect...

means of various patent valve gears with a separate, variable cutoff expansion valve riding on the back of the main slide valve; the latter usually had...

in the materials used to construct them, the types of valve (if any) used, and whether the valve is programmable or not. The location of the shunt is determined...

Bagnall–Price valve gear is a type of steam engine valve gear developed at locomotive manufacturer W.G. Bagnall as an alternative to the more common Walschaerts...

long pipe. It was necessary to pull a hanging chain connected to a release valve located inside the cistern in order to flush the toilet. Modern toilets...

infection of the inner surface of the heart (endocardium), usually the valves. Signs and symptoms may include fever, small areas of bleeding into the...

inline-four engine that was produced from 1966 through 2007. It is a two-valve pushrod engine design. It was originally built from the Toyota Kamigo plant...

1.8 L (1,849 cc) Cylinder Configuration: Inline-4 Valvetrain: SOHC, 16 valves 115 hp (86 kW) up to 1997 105 PS (77 kW) at 6,000 rpm, 14.6 kg⋅m (143 N⋅m;...

Applications: 8-valve non-intercooled, 55 PS (40 kW; 54 hp) and 130 N⋅m (96 lb⋅ft) 2005–2008 Citroën C1/Peugeot 107/Toyota Aygo 1.4 HDi 8-valve non-intercooled...

bell and mouthpiece to facilitate low register playing, and usually two valves to fill in the missing range immediately above the pedal tones. The earliest...

co-founder of the video game company Valve. After the success of the first Valve game, Half-Life (1998), Harrington left Valve in 2000. In 2005, he co-founded...

litres. It features dual overhead cams, 16 valves in total, multi-port fuel injection, and variable valve timing in later models. The J engine was Suzuki's...

Left 4 Dead is a 2008 first-person shooter game developed by Valve South and published by Valve. It was originally released for Windows and Xbox 360 in November...

While the valve is off, the threads of cylinder and valve are checked to identify the thread type and condition. The threads of cylinder and valve must be...

objects. A related technology is the plasma valve, invented shortly after the plasma window. A plasma valve is a layer of gas in the shell of a particle...

food to go along the esophagus toward the stomach instead. It is thus the valve that diverts passage to either the trachea or the esophagus. The epiglottis...

motors are aluminum, dual overhead camshaft (DOHC), four-valve designs with variable valve timing and optional direct injection. The engine shares much...

Episode Two is a 2007 first-person shooter game developed and published by Valve. Following Episode One (2006), it is the second of two episodic games that...

heart ventricles through the atrioventricular mitral and tricuspid heart valves. There are two atria in the human heart – the left atrium receives blood...

Valve Records is an Australian independent record label that promotes both Australian and international artists. The label was founded by Paul Curtis...

engineered systems. It is sometimes called reflux. The various types of heart valve regurgitation via insufficiency are as follows: Aortic regurgitation: the...

exhaust valve closes, the intake valve opens, and the sequence repeats in the next cycle. The intake valve may open before the exhaust valve closes to...

Counter-Strike 1.6) is a 2000 tactical first-person shooter game developed by Valve Corporation and published by Sierra Studios. It is the first installment...

developed some of the first valves for brass instruments. He developed the first valve for a brass musical instrument, the Stölzel valve, in 1818, and went on...

The transverse folds of rectum (or Houston's valves or the valves of Houston) are semi-lunar transverse folds of the rectal wall that protrude into the...

found in Central and Southern America. Right and left valve of the same specimen: Right valve Left valve "Eurytellina punicea (Born, 1778)". www.gbif.org....

thrust. The traditional valved pulsejet has one-way valves through which incoming air passes. When the fuel mix is ignited, the valves close, which means that...

is a 24-valve SOHC design with two valves running off a single cam lobe on the exhaust valves using a forked rocker arm and each intake valve actuated...

this pressure constant. The valve is often described as a needle valve, although this is a misnomer. A true needle valve uses a tapered needle in a tapered...

underlying conditions that make the heart work harder, such as obesity, heart valve disease, high blood pressure (hypertension), and coronary artery disease...

a replacement for the M-series inline-6 engines, the JZ engines were 24-valve DOHC engines in 2.5- and 3.0-litre versions. The 2,492 cc (2.5 L; 152.1 cu in)...

system is a BMW variable valve lift system which, in combination with VANOS, allows infinite adjustment of both intake valve timing and lift. The system...

the engine from the Esteem. The new engine was the all-aluminium eight-valve G13BA engine displacing 1.3L and made 60 bhp (45 kW; 61 PS). This engine...

subject of a haiku by Matsuo Bashō. Right and left valve of the same specimen: Right valve Left valve Meretrix lusoria is morphologically similar to a number...

B5-TPH. Nissan introduced a small three-cylinder engine with variable intake valve timing that claims to operate an Atkinson cycle at low load (thus the lower...

oxygen system for ambulatory patients and the Heimlich Chest Drain Valve, or "flutter valve", which drains blood and air out of the chest cavity. Heimlich...

Clifton Park Valve House, also known as the Lake Clifton Gate House or Lake Clifton Valve House, is a historic building located in a northeast area known...

North Carolina to Bermuda and Brazil. Right and left valve of the same specimen: Right valve Left valve The calico clam has been protected from harvesting...

small valve hall and to reduce the number of thyristors connected in series in each valve. For this reason, at HVDC back-to-back stations, valves with...

The Holcroft valve gear was a type of conjugated valve gear designed and patented by Harold Holcroft and used on three-cylinder steam locomotives of the...

The Prospect Reservoir Valve House is a heritage-listed waterworks located at East of Reservoir, Prospect in the City of Blacktown local government area...

writer for the video game company Valve, where he worked on the Half-Life and Portal series. Before joining Valve, Laidlaw was a novelist working in...

its blow forward design was unique. Made mostly from stainless steel, the valve system was the first to incorporate a pressure regulator directly into the...

M-OV (Marconi-Osram Valve Company) was a British manufacturer of thermionic valves (vacuum tubes). It was a subsidiary of the (British) General Electric...

Grupo Compás, which trades as Alloy Valve Stockist, is an industrial alloy valve stockist and distributor based out of Barcelona, Spain and is recognized...

with the opening snap in mitral valve stenosis. It is heard following the middiastolic rumble of the stenotic valve, during the diastasis phase, making...

is a two-cylinder, 45 degree, pushrod actuated overhead valve V-twin engine with two valves per cylinder. It was the third basic type of V-Twin engine...

("Grand Jumbo" [46K (3-valve) & 48K (4-valve)]) and King ("Jumbo" [1265 (3- & 4-valve versions)] & "Giant" [1270 (3-valve) & 1271 (4-valve)]) in the mid-1920s...

A level control valve or altitude control valve is a type of valve that automatically responds to changes in the height of a liquid in some storage system...

the family Mytilidae, the mussels. Right and left valve of the same specimen: Right valve Left valve Tropical Indo-Pacific.; also in Australia. "WoRMS...

the pitch of the instrument. Having valves and the same tubing length, the bass trumpet is quite similar to the valve trombone, although the bass trumpet...

coronary artery arises from the aorta within the left cusp of the aortic valve and feeds blood to the left side of the heart. It branches into two arteries...

piston with precision. Types are slide valves, piston valves or poppet valves. Valve chest / steam chest Valve chamber next to the cylinder (24) containing...

reduced from 66 to 60 mm. Available in various versions with 6, 9, or 12 valves and SOHC or DOHC head designs, carburettor or fuel injection and naturally...

family Veneridae, or Venus clams. Right and left valve of the same specimen: Right valve Left valve Powell A. W. B., New Zealand Mollusca, William Collins...

only opening one valve during the intake stroke, rather than both, placing the multiport fuel injectors very near the intake valves, and by using an ultra...

The Gresley conjugated valve gear is a valve gear for steam locomotives designed by Sir Nigel Gresley, chief mechanical engineer of the LNER, assisted...

left valve of the same specimen: Right valve Left valve Cerastoderma glaucum lamarcki Right and left valve of the same specimen: Right valve Left valve "Cerastoderma...

VANOS is a variable valve timing system used by BMW on various automotive petrol engines since 1992. The name is an abbreviation of the German words for...

had a four-stroke air-cooled 8-valve inline-four engine. In 2009 the model name was retained for a new range with 16-valve liquid-cooled engines. Before...

The Toyota E engine series are a family of straight-four multi-valve piston engines produced by Toyota Motor Corporation from 1985 to 1999. Like many...

spiral valve may refer to: Intestinal spiral valves, the lower portion of the intestine of some sharks, rays, skates and bichirs Spiral valves of Heister...

The Intelligence-Active Valve Lift System (i-AVLS) is a valvetrain technology implemented by Subaru in their 2.5 L SOHC naturally aspirated engine to...

Philippines. Right and left valve of the same specimen: Orange form Right valve Left valve Brown form Right valve Left valve "WoRMS - World Register of...

water include using extra high pressure mist flow or design in sensors and valves to shut off or reduce water flow while people are not actively using the...

Half-Life is a series of first-person shooter games created and published by Valve. Since the release of the original Half-Life for Windows in 1998, several...

(or insufficiency, incompetence) is a condition in which the pulmonary valve is incompetent and allows backflow from the pulmonary artery to the right...

stenosis. The term parachute mitral valve stems from the morphological appearance of the valve; that is to say, the mitral valve leaflets appear as the canopy...

Strauss invented and produced a gas-filled triode – the first thermionic valve with a control grid that was designed specifically for amplification rather...

Stroke 70 mm × 76 mm (2.76 in × 2.99 in) compression ratio: 8.6:1 Valve Train: SOHC 8-valve design with a 2 barrel carburetor or 1 carburetor Power: 69 PS...

shut-off valve is built into the service valve. Where multiple tanks are fitted, a combination of check valves and a hydrostatic relief valve are usually...

suction valve (SAV) is a subsystem used to reduce emissions in the exhaust gases of internal combustion engines. When an engine exhaust valve is open...

1981 — June 1988 Displacement: 1832 cc Mounting: longitudinal Type: SOHC 8-valve Bore/stroke: 80.5 × 89.9 mm Compression ratio: 9.1 Outputs: 100 PS (74 kW)...

three generations are overhead valve engines, otherwise known as pushrod engines. Overhead valve engines have the valves mounted above the cylinder head...

tricuspid valve. The c peak reflects the pressure rise in the right ventricle early during systole and the resultant bulging of the tricuspid valve—which...

Heart Valve Therapy – artificial heart valves (mechanical heart valves and biological heart valves) for aortic valve replacement and mitral valve replacement...

intestine. It is separated from the ileum by the ileocecal valve (ICV), also called Bauhin's valve. It is also separated from the colon by the cecocolic junction...

combines one or more block/isolate valves, usually ball valves, and one or more bleed/vent valves, usually ball or needle valves, into one component for interface...

block were designated K8 (8 valves) and K16 (16 valves). A later head design also incorporated a Rover-designed Variable Valve Control (VVC) unit (derived...

the cusps of the atrioventricular valves (the mitral valve between the left atrium and ventricle and the tricuspid valve between the right atrium and ventricle)...

them in an upright position if needed. A bell flooding valve, also known as a flood-up valve may be available to partially flood the interior to aid...

dry side, contains air under pressure, and normally a Schrader valve (car-tire type valve stem) for checking pressures and adding air when needed. When...

The safety valve is a provision in the Sentencing Reform Act and the United States Federal Sentencing Guidelines that authorizes a sentence below the...

1989) was an American surgeon who invented the first artificial heart valve in the early 1950s. Hufnagel was born in Louisville, Kentucky, and reared...

the surface. Right and left valve of the same specimen: Right valve Left valve Fossil (Pliocene) Right valve Left valve The species is widespread in...

throughout the body. The mitral and tricuspid valves, also known as the atrioventricular, or AV valves, open during ventricular diastole to permit filling...

2006, it was initially available as a 2.0-litre 8-valve engine, and later in 2.0 and 2.3-litre 16-valve versions. It powered various Ford models in both...

non-nuclear secondary system, followed by a stuck-open pilot-operated relief valve (PORV) in the primary system, which allowed large amounts of water to escape...

Gabe Newell, managing director of Valve, took interest in the team's work and employed the whole staff at Valve. The developers went on to develop the...