valve. noun. ˈvalv. 1. : a bodily structure (as in a vein or the heart) that closes temporarily to prevent passage of material or that allows movement of a fluid in one direction only. 2. a. : a mechanical device by which the flow of liquid, gas, or loose material in bulk may be controlled by a movable part.

A valve is a device or natural object that regulates, directs or controls the flow of a fluid by opening, closing, or partially obstructing various passageways. Valves are technically 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 …

15/12/2021 · Classification of Valves Linear Motion Valves. . The valves in which the closure member, as in gate, globe, diaphragm, pinch, and lift Check... Rotary Motion Valves. . When the valve-closure member travels along an angular or circular path, as in butterfly, ball,... Quarter Turn Valves. . Some ...

valve 1. (Mechanical Engineering) any device that shuts off, starts, regulates, or controls the flow of a fluid 2. (Anatomy) anatomy a flaplike structure in a hollow organ, such as the heart, that controls the one-way passage of... 3. (Electronics) Also called: tube or vacuum tube an evacuated ...

valve noun [ C ] us / vælv / a device that controls the flow of air or liquid from one place to another: a heart valve The explosion apparently was caused by a faulty gas valve. (Definition …

Scientific definitions for valve Any of various mechanical devices that control the flow of liquids, gases, or loose material through pipes or channels... The movable part or element of such a device.

18/09/2021 · What is an Engine valve? Engine valves are mechanical components used in internal combustion engines to allow or restrict the flow of fluid or gas to and from the combustion chambers or cylinders during engine operation.

Valve Definition The heart has 4 chambers, which are two upper chambers which are known as atria, and a couple of lower chambers that are known as ventricles. Blood passes through a valve before leaving each chamber of the guts. The valve prevents the backward flow of blood. Valves are flapped-shaped.

05/06/2020 · The mechanical device that controls the flow and pressure within a system or process is called Valves and there are many types of valves such as gate valves, globe valves, ball valves, etc. They are essential components of a piping system that conveys liquids, gases, vapours, etc. There are many different types of valves.

20/01/2022 · A valve is a device to close and open a passage. Engine valves are devices that are used in internal combustion engines to allow or stop the flow of fluid or gas from cylinders or combustion chambers during the engine while the engine is operating.